Information Processes and Technology
Contents
1. Question 24 a Criteria Marks Identifies participants and demonstrates understanding of their roles in 2 context Identifies feature s of roles 1 Question 24 b Criteria Marks Provides an interface design demonstrating an understanding of user 2 collaboration Attempts to provide a user interface 1 Question 24 c Criteria Marks Provides discussion demonstrating clear understanding of installation support and maintenance considering a range of positive and negative 5 Issues in context Provides discussion demonstrating an understanding of installation and support maintenance considering both positive and negative issues in 4 context Provides description demonstrating an understanding of installation and 3 support maintenance Identifies issues demonstrating a limited understanding of installation and 2 maintenance Identifies a feature of installation maintenance 1 Pot aT TAE 2012 HSC Information Processes and Technology Marking Guidelines Section III Question 25 a i Criteria Marks Provides definition of an online transaction processing system indicating 1 some understanding of transaction processing Question 25 a ii Criteria Marks Provides description indicating understanding of the importance of data 2 backup in context Identifies an issue related2. Provides a description indicating some understanding of an automated 2 manufacturing system Identifies a feature of an automated manufacturing system 1 Question 27 b iv Criteria Marks Provides a discussion of an alternative application demonstrating understanding of robots with sensors in context and considers the process 5 of collecting and further developments Provides description of an alternative application demonstrating understanding of robots and considers the process of collecting OR further 4 developments Provides identification of a suitable application indicating understanding 3 of robots Provides an application demonstrating understanding of a robot 2 dentifies a feature of robots 1 ze dE LEE 2012 HSC Information Processes and Technology Marking Guidelines Question 28 a i Criteria Marks Provides definition of simulation indicating some understanding of 1 simulation Question 28 a ii Criteria Marks Provides a description of how tweening saves time indicating 2 understanding of tweening and the creation of animations Identifies a feature of animation 1 Question 28 a iii Criteria Marks Demonstrates an understanding of the similarities AND differences 3 between printed and multimedia versions Demonstrates some understanding of the similarit
3. Integration of multiple sources of data including patient data medical records pathology and imaging results hospital admissions staff details HR operating theatre bookings employee payroll patient accounts accessed from appropriate ERP modules Organisation of above data into a relational database or other suitable structure stored on large capacity disk drives or other suitable storage media answer could possibly refer to storage organisation or media trades sectors cylinders Data can be accessed by ERP modules by linking of relational tables All users can access the most current data information from a single source ie centralised data The ERP would offer higher quality data than separate systems as it would reduce or eliminate data redundancy and provide a single source of up to date information Reduced risk of having unreliable patient data for a diagnosis Different modules would provide data views of the available data allowing different users to access data relevant to their needs eg doctors and nurses could view patients info accountants can access financial data p CHER ETENIUE 2012HSC Information Processes and Technology Sample Answers Question 26 a i Sample answer What if models allow alternatives to be compared and the best option to be identified Question 26 a ii Sample answer A macro can be used in a spreadsheet to automate tasks that are
4. Decision Support Systems 20 marks a b Use a SEPARATE writing booklet i How do what if models assist decision making ii Describe how macros are used in spreadsheets iii Discuss implications arising from automated decision making The CSIRO has developed a software package SiroFire to help fire fighters respond to fires more effectively SiroFire uses information such as temperature and relative humidity wind speed and direction fuel load and conditions and slope and terrain to predict the spread of a bushfire SiroFire plots the fire perimeter on a map Geographic maps and digital terrain models are used to graphically present the spread of the fire over the map display Knowing in advance where to put the ground crews is a powerful weapon in the fight to save lives and property and to protect fire fighters The following screenshot shows the predicted path of a fire using SiroFire Awaiting Copyright Question 26 continues on page 17 Aq Question 26 continued i ii iii iv Identify the computer hardware necessary to support SiroFire Name a category of decision support systems that SiroFire represents and justify your answer by describing distinguishing characteristics Discuss the issues related to SiroFire s data collection from multiple sources in terms of the implications for data quality Suggest an alternative application that could use data from multiple sourc
5. Towers with Base station dishes Digital signals Device from modem Incar to antenna Note Answers without towers with dishes are also acceptable PEATA EIEE 2012 HSC Information Processes and Technology Sample Answers Question 22 b Sample answer The most appropriate development approach would be using a traditional approach It is a large scale project which would require a large team of developers working in teams It would also be beneficial to create a prototype for testing and evaluation and then make changes as required The project or parts of the project may be outsourced to get professionals with technical knowledge to work on the project Question 22 c Criteria Marks Provides discussion indicating understanding of change in nature of work 2 and context Identifies factors of nature of work 1 Sample answer Telephone operators will still need to answer phones for emergencies relating to car crashes but there will be no need to get locations and accident details before dispatching emergency vehicles However emergency telephone operators will need to undergo training to learn how to use the new computer system The duties of emergency response workers will change from gathering information to analysis of given information and decisions relating to appropriate responses CHER ETENIUE 2012HSC Information Processes and Technology Sample Answers Question 22 d Sampl
6. voice recognition voice to text conversion gesture based inactivity text to sound conversion handwriting recognition closed captioned video Auslan signing plagiarism detection assignments text analysis for assignment marking 18
7. knowledge and skills This material is also provided to the Supervisor of Marking to give some guidance about the nature and scope of the responses the committee expected students would produce How sample answers are used at marking centres varies Sample answers may be used extensively and even modified at the marking centre OR they may be considered only briefly at the beginning of marking In a few cases the sample answers may not be used at all at marking The Board publishes this information to assist in understanding how the marking guidelines were implemented The sample answers or similar advice contained in this document are not intended to be exemplary or even complete answers or responses As they are part of the examination committee s working document they may contain typographical errors omissions or only some of the possible correct answers CHER ETENEUE 2012HSC Information Processes and Technology Sample Answers Section II Question 21 a Answers could include Customer Code text Customer Name text Customer Address text etc Any three fields with a suitable data type that would be included in the order table would be acceptable Question 21 b Answers could include The customer would need to have things like a computer access to a modem an ISP cable wireless to connect the computer to ISP interface card browser software security software Question 21 c
8. 4 Stability sensors to test for areas subject to possible further collapse Question 28 a i Sample answer A simulation is an interactive computer based system designed to provide a realistic imitation of a real life situation Question 28 a ii Sample answer Tweening helps save time when producing animations because the animator is only required to draw key frames of each movement and the computer produces inbetween frames to make the transition smoother The animator also chooses the number of inbetween frames 15 PEATA EIEI 2012 HSC Information Processes and Technology Sample Answers Question 28 a iii Sample answer Printed and multimedia versions both present the same information for the same purpose However multimedia versions allow for e interactivity e easier to edit and update e less storage space required more up to date access to data Whereas printed media allows for portability no need for technology but mass storage is required Question 28 b i Answer could include Accessibility issues can relate to students located in remote rural areas international students those who have no access to transport and students with disabilities who may have difficulties with travel or with vision Note Students need to write characteristics and features relating to any of the above Question 28 b ii Sample answer Students will need to compress photos Two met
9. Answers could include Developers could include online help systems bubble help on screen instructions a training video drop down menus voice help provide a contact phone number to gain assistance from a person These features could all be used to help users in different ways depending on their needs For example voice help could greatly assist a user who experiences reading difficulties whereas on screen instructions could assist a user in successfully completing a sequence of steps to place an order VET MEI 2012 HSC Information Processes and Technology Sample Answers Question 21 d Sample answer COMPANY NAME Customer Name Customer Address Book Code Book Name Total Order Complete Print Invoice Print Address Label Back Order O Justification may include Employees who pack and dispatch book orders will need to confirm that the customer name and address match the order Can be used to confirm books in the order while it is packed They need to print an invoice to pack with the order They need to print an address label for the parcel They need to confirm that the order has been completed or back ordered PEARY TAE UNTES 2012 HSC Information Processes and Technology Sample Answers Question 22 a Sample answer Satellite GPS signal fi VA High frequency radio waves OR digital signals a Antenna ZI
10. Question Marks Content Syllabus outcomes 25 a 1 1 9 4 1 H5 1 H5 2 25 a ii 2 9 4 1 H5 1 H5 2 H6 1 H6 2 H3 2 25 a iii 3 9 4 1 H5 1 25 b 1 2 9 4 H5 1 H5 2 H6 1 H6 2 25 b ii 3 9 4 1 H5 1 H5 2 H6 1 H6 2 25 b iii 4 9 4 H5 1 H5 2 H6 1 H6 2 25 b iv 5 9 4 1 H4 1 H5 1 H5 2 26 a 1 1 9 4 2 H6 1 26 a ii 2 9 4 2 H6 1 H6 2 26 a iii 3 9 4 2 H6 1 H6 2 H3 2 26 b 2 9 4 2 H1 1 26 b ii 3 9 4 2 H5 1 H5 2 26 b iii 4 9 4 2 H5 1 H5 2 26 b iv 5 9 4 2 H4 1 H5 1 H5 2 H6 1 H6 2 27 a 1 1 9 4 3 H1 1 27 a ii 2 9 4 3 H1 1 H1 2 27 a iii 3 9 4 3 H1 1 H1 2 27 b i 2 9 4 3 H1 1 H1 2 H2 1 H2 2 27 b ii 3 9 4 3 H4 1 H6 1 H6 2 H3 2 27 b iii 4 9 4 3 H1 1 H1 2 H2 1 H2 2 27 b iv 5 9 4 3 H1 1 H4 1 H2 1 H2 2 28 a i 1 9 4 4 H1 1 28 a ii 2 9 4 4 H5 1 H5 2 H6 1 H6 2 28 a iii 3 9 4 4 H6 1 H6 2 28 b i 2 9 4 4 H2 1 H2 2 H3 2 28 b ii 3 9 4 4 H6 1 H6 2 28 b iii 4 9 4 4 H6 1 H6 2 28 b iv 5 9 4 4 H2 1 H22 H4 1 H6 1 H6 2 kaa ss BOARD OF STUDIES NEW SOUTH WALES 2012 HSC Information Processes and Technology Sample Answers When examination committees develop questions for the examination they may write sample answers or in the case of some questions answers could include The committees do this to ensure that the questions will effectively assess students
11. facilities to apprehend intruders fight fires or stop gas or radiation leaks Question 27 b iii Sample answer Process Processing Displaying Receive data from screen Record robot temperature If anomaly then sound alarm robot data gas and radiation data and display intruder data if anomaly then advise other robots to explore the anomaly Human to follow Request robot to move location to assist robot notifying anomaly 4 PEATA EIEE 2012 HSC Information Processes and Technology Sample Answers Question 27 b iv Sample answer Remotely monitored roaming robots can be used in any situation where there is an environment with some level of consistency If monitors register movement of the environment outside set parameters then alarms can be triggered They can also be used in areas where human activity is not appropriate due to harmful physical or chemical environments For instance robots could be used to explore a coalmine after a disaster to map and measure the saturation This information could be used to identify possible air pockets where survivors may be present Collecting The robots would need to have some sensors to collect 1 Laser beams to gather the dimensions of width and height of all the available accessible locations 2 Temperature sensors to measure the temperature of the air to see if there is fire in the mine 3 Gas sensors to test for levels of oxygen
12. 6 17 A B C D One to one One to many Many to one Many to many In free text search the symbol can be used to replace 0 to 7 characters in a word not including white space Which of the following searches would locate all three words hypermedia multimedia and hypertext A B C D media OR hyper multi OR hyper multi AND text media AND hyper This image shows detail of an emerging technology used in luggage tags to track items being transported from the check in area at an airport to different aircraft Awaiting Copyright What technology is this A B C D Optical Character Recognition Radio Frequency Identification Magnetic Ink Character Recognition Transmission Control Protocol Internet Protocol Which issue needs to be considered when many organisations store data with one common identifier such as a tax file number A B C D Data matching Ownership of data Freedom of information Acknowledgement of data sources 18 A multinational company has its database located in Sydney The database is accessed from offices in various countries What type of database is being used 19 20 A B C D Centralised Distributed Redundant Schematic How does a print server on a client server network interact with the user when it is reporting the status of a print job to the client A B C D The transmitter determines
13. A 0103 Jack Jones Book 31 01 12 29 02 12 6 Lecture 1 B 0402 John Jones CD 07 02 12 07 03 12 9 Repair a PC C 0303 Jack Smith DVD 05 04 12 06 05 12 15 Tech Zone A 0401 Mary Smith Periodical 06 06 12 08 06 12 32 Comm Sys Frame D 0202 Sally Green Poster 07 07 12 09 07 12 1 a database and propose a solution for each b relationships and label primary and foreign keys c in a large automated storage area located under the building Describe TWO problems that could arise from using this flat file structure as a Normalise this flat file structure into three tables Indicate necessary A new library has all of its books periodicals and audio visual materials stored Recommend and justify the most appropriate way to store each item to allow for ease of retrieval _11 Question 24 9 marks Use the Question 24 writing booklet Open source software OSS is an emerging technology that has evolved with the use of the internet OSS is developed in a new copyright and licensing environment where one goal is to provide software at no cost to the public Users of OSS have free access to the software but they also take responsibility for its ongoing maintenance and help desk support Recent examples of open source projects include the Firefox browser and the Android operating system An open source project is undertaken in a collaborative environment by a skilled team often with members in diverse co
14. Online bookshop Information System Purpose To allow customers to purchase books and staff to manage order and product information f Information Processes Collecting organising analysing displaying i i Participants Data Information Information Employees who Customer data order Technology process and ship details product Database file orders information publisher server details communications equipment Boundary a Name TWO fields for a CUSTOMER table in the database used by this 2 information system and identify their data types b Identify the information technologies that a customer would need to access the 3 online bookshop from home c Describe a feature that developers would include to help users successfully place 2 an order d Different employees are able to access different data views from the database 4 Sketch a database view that would be displayed on the screen of employees who pack and dispatch book orders and justify the information that you have included Question 22 10 marks Use the Question 22 writing booklet Emergency response personnel are devising a system to equip all motor vehicles with a crash sensor in order to manage the appropriate emergency response The system will be able to detect that a motor vehicle accident has taken place send a signal to an emergency 000 triple zero base station indicating the exact l
15. Provides response indicating basic understanding of an emerging 2 technology Identifies feature s of technology 1 13 Information Processes and Technology 2012 HSC Examination Mapping Grid Section I Question Marks Content Syllabus outcomes 1 1 9 3 H1 1 H6 1 H6 2 2 1 9 3 H1 1 H1 2 3 1 9 1 H6 1 4 1 9 3 H2 2 5 1 9 2 H1 2 6 1 9 3 H1 2 H2 2 7 1 9 3 H1 2 8 1 9 3 H1 2 H2 2 9 1 9 3 H2 2 10 1 9 3 H1 2 H2 2 11 1 9 1 H5 1 12 1 9 2 H6 1 13 1 9 1 H6 1 H5 1 14 1 9 2 H1 1 H2 1 H6 1 15 1 9 2 H1 2 16 1 9 2 H4 1 H1 1 17 1 9 2 H2 1 H3 2 18 1 9 2 H2 1 19 1 9 3 H1 1 20 1 9 1 H1 1 Section II Question Marks Content Syllabus outcomes 21 a 2 9 2 H1 1 H1 2 21 b 3 9 2 9 3 H1 1 H1 2 H6 1 21 c 2 9 1 H1 1 H1 2 H6 1 H6 2 21 d 4 9 2 H1 1 H1 2 H6 1 H6 2 22 a 2 9 3 H1 1 H6 1 H6 2 22 b 3 9 1 H HI 1 H1 2 H6 1 H6 2 22 c 2 9 1 H3 1 H3 2 H4 1 22 d 3 9 3 H2 2 23 a 3 9 2 H6 1 H6 2 23 b 4 9 2 H6 1 H6 2 23 c 3 9 2 H1 1 H22 24 a 2 9 1 H1 1 H4 1 H5 1 H5 2 24 b 2 9 1 H1 1 H1 2 FOUR AL 2012 HSC Information Processes and Technology Mapping Grid Question Marks Content Syllabus outcomes 24 c 5 9 1 H1 1 H22 H4 1 H5 1 H5 2 Section III
16. RROWER r Item Number 8 Loan Number 1 Borrower ID lt Item Name Item Number Borrower Name Type Borrower ID lt No items borrowed Date_borrowed Date_returned Primary key Foreign key Primary key Question 23 c Sample answer The items can be stored in the warehouse in a dynamic sequence Using the No of times borrowed field to place the items in a location that makes it faster to access will continue to improve the efficiency of the retrieval system Using the Item number as a secondary item in the order sequence will enable all like items of similar size to be located in appropriate storage facilities Question 24 a Sample answer Participants in the development of OSS are people who contribute to designing and writing software These people are those that have the time and motivation to contribute and who do not expect to be paid BOARD OFS nun 2012HSC Information Processes and Technology Sample Answers Question 24 b Sample answer Edit code View History Chat Time e Stamp e o je e Time Stamp e Version Local Time Note Aspects of the screen design that should be included are Area to view and edit source code Achat video conference room Times in different zones and different locations identified for participants Question 24 c Answers coul
17. d include Discussion of Compatibility of the OSS with hardware existing software and existing data formats Updating OSS software when updates of h w or o s occur or when software is modified updated Training of users of the OSS Training technical support staff Availability of documentation for OSS Depending on the quality of work by unidentified programmers Ongoing consideration of legal implications that arise if the software fails Procedures for dealing with security issues if they become evident CHER ETENEUE 2012HSC Information Processes and Technology Sample Answers Section III Question 25 a i Sample answer An OLTP is a real time computer based system that records events that are important to an organisation Question 25 a ii Sample answer Backup of student assignments submitted online is important to ensure the student s work is not lost if there is any system failure If there is a system failure then the backup copy can be accessed to enable student assignments to be marked Question 25 a iii Sample answer Batch processing allows processing to occur when a number of transactions have been accumulated It does not require a computer to be dedicated to processing all the time but only when the group batch of transactions is processed Question 25 b i Sample answer If the ERP is not available then a manual system to capture transactions is required The transaction data col
18. e and must be considered for each separate situation that arises Note Responses may also select semi structured as the category provided there is an appropriate justification Structured decision making is not an acceptable answer Question 26 b iii Sample answer Some of the information in this DSS could be gathered from other authorities for example the information regarding weather conditions Other data would require people to go to lots of different locations to observe and report conditions like fuel load This means that data would need to be regularly gathered from lots of different sources The timeframe for data collection and updating would need to be determined to be able to develop accurate models of the fire path Data would then need to be collected and uploaded at regular intervals to ensure data was up to date and reliable in the event of any fire outbreak If data is not of high quality not up to date accurate and reliable then the models of fire path provided by SiroFire will not be realistic With unrealistic predictions personnel may be deployed to locations that are dangerous possibly resulting in loss of life Fire fighters may be sent to locations that are not under threat when needed at other locations where the fire 1s burning Loss of property and or life could also occur in this situation 2 PEATA EIEE 2012 HSC Information Processes and Technology Sample Answers Question 26 b iv An
19. e answer The data collected by the crash sensor would be formed into data packets by converting the analogue data collected into its digital equivalent Each data packet transmitted should include special start and stop bits to indicate the start and end of each data packet anerror detection method such as the use of an additional parity bit arating to indicate the severity of the crash GPS coordinates indicating the location of the crash Question 23 a Sample answer The database structure used is a flat file database The borrower details should be separate from the item details so that the borrower name is not displayed when an item is searched for Also there are two fields relating to both Item and Borrower and the borrower s full name is displayed within one field Normalising the database will solve this problem separating borrower into first name and surname Other problems that can occur from using a flat file structure in a database include data redundancy unnecessary repetition of data update anomalies eg update a name in one place and not another deletion anomalies eg deleting an item may result in deleting a borrower and insertion anomalies eg to add an item you need to have a borrower or empty fields dE HIE 2012 HSC Information Processes and Technology Sample Answers Question 23 b Sample answer ITEM LOAN BO
20. ect the presence of a metal vehicle Question 27 a iii Sample answer CAD CAM systems often use computer numerical control NC are the coordinates of a point in space which are used to accurately position a manufacturing device to automate processes CNC can be used in electronic assembly or in drafting machines to produce construction drawings They can also be used as cutting and shaping machines to fabricate components 13 PEATA EIEE 2012 HSC Information Processes and Technology Sample Answers Question 27 b i Answer could include Movement of intruders Optical sensors are used to measure changes in light By recording the light levels at all positions in the environment an intruder would be recognised by a change from the expected light level OR Record temperature Resistance thermometers thermocouples and thermistors are used to record air temperature Any changes from the constant temperature provided from an air conditioner are recorded and notified to the control centre OR Detect toxic gases and radiation Gas and radiation sensors record the standard in the room or at a particular location Changes are sent to the control centre Question 27 b ii Sample answer The IPTSecurity system is human centred The system acts to collect data and filter it in order to only present it to the human operations structures for any form of decision making or external reaction The robots have no
21. ed with a new system be included A Gantt chart B User manual C Process diary D Feasibility report The diagram shows a portion of a network Awaiting Copyright What term is used to describe Computer 1 in the diagram A Fat client B Web server C Thin client D Mail server Which of the following describes the organisation of hypermedia A Nodes and links B Files and records C Online and offline storage D Direct and sequential access to data Which of the following best describes handshaking between two communication devices A Modulation of a signal B Process to encrypt a message C Establishment of an agreed protocol D Detection and correction of transmission errors m 3 Which of the following transmission media only allows transmission if the sender and the receiver are in line of sight A Optic fibre B Microwave C Coaxial cable D Twisted pair The cable shown in the diagram carries digitised data Awaiting Copyright What type of waves are carried by this cable A Radio waves B Microwaves C Sound waves D Light waves 9 10 Four network topologies are shown Node Server Transmission medium Terminator ARO d Which row in the table correctly identifies the types of network topologies shown KEY 1 2 3 4 A star bus ring hybrid B ring star bus hybrid O ring star hybrid b
22. el BOARD OF STUDIES NEW SOUTH WALES 2012 HIGHER SCHOOL CERTIFICATE EXAMINATION Information Processes and Technology General Instructions Reading time 5 minutes Working time 3 hours Write using black or blue pen Black pen is preferred Draw diagrams using pencil 1300 Total marks 100 Pages 2 8 20 marks e Attempt Questions 1 20 Allow about 40 minutes for this section Section II Pages 9 12 40 marks e Attempt Questions 21 24 Allow about 1 hour and 10 minutes for this section Pages 14 20 40 marks Attempt TWO questions from Questions 25 28 Allow about 1 hour and 10 minutes for this section Section I 20 marks Attempt Questions 1 20 Allow about 40 minutes for this section Use the multiple choice answer sheet for Questions 1 20 1 Which protocol would be most appropriate to send a client ID and password to an online banking system A Secure Socket Layer SSL B File Transfer Protocol FTP C Hypertext Transfer Protocol http D Portable Document Format PDF 2 Which of the following diagrams best represents digital to analogue conversion A sender modem receiver Zi nn A B sender modem receiver 2R AnnnA C sender modem receiver s D sender modem receiver VUVUU ER In which of the following documents will potential costs associat
23. es displayed geographically In your answer consider a processing method that could be used by the information system to recommend solutions End of Question 26 _ 17 Question 27 Automated Manufacturing Systems 20 marks Use a SEPARATE writing booklet a i Give an example of an automated manufacturing situation where a robotic arm would be used ii Describe a suitable sensor to detect a car at a set of adaptive traffic lights iii Explain how CNC systems are used in CAD CAM systems Question 27 continues on page 19 18 Question 27 continued b IPTSecurity Robots are being deployed in some industrial and warehouse facilities These robots are powered by batteries and they can patrol the premises continuously for up to 12 hours When the battery power source of a robot reaches a certain predetermined low level the robot moves to seek a power outlet to recharge connecting with a cable using a magnetic plug Awaiting Copyright The robots have sensors to perform three functions detect movement to identify intruders record temperature of the surrounding environment and detect toxic gases and radiation The robots have a camera to provide a continuous video display to the Control Centre Each robot constantly relays to the Control Centre the measurements from the sensors as well as its own status in terms of its location coordinates and power level i Describe the physical operation of a sensor i
24. fies factor s of nature of work 1 Question 22 d Criteria Marks Provides description indicating understanding of data packets and 3 analogue to digital data transmission in context Provides description indicating some understanding of data packets or 2 analogue to digital data transmission Identifies a component of data packets 1 Poet TLE 2012 HSC Information Processes and Technology Marking Guidelines Question 23 a Criteria Marks Provides a description of TWO problems with a solution for each 3 indicating understanding of the problem and database Identifies a problem or proposes solutions indicating understanding of 2 databases Identifies a feature or problem in a database 1 Question 23 b Criteria Marks Provides THREE substantially correct tables demonstrating an 4 understanding of normalisation Provides tables demonstrating an understanding of normalisation 3 Provides tables demonstrating some understanding of database 2 Identifies features of tables 1 Question 23 c Criteria Marks Provides recommendation and justification for an order indicating 3 understanding of the problem Provides recommendation and or justification indicating some 2 understanding of the problem Identifies a feature of an appropriate system 1 Poet TLE 2012 HSC Information Processes and Technology Marking Guidelines
25. hods include lossy and loss less compression Lossy compression provides a higher compression rate however a number of bytes are often removed from the file reducing the quality of the image eg jpeg Loss less compression works by identifying repeated patterns in the image and can be restored in full eg gif Therefore to maintain the quality of the photos students are recommended to use loss less compression techniques 16 PEATA EIEI 2012 HSC Information Processes and Technology Sample Answers Question 28 b iii Answers could include In multimedia there are five basic media types these include text graphics audio video and animation Text is used throughout the system to do tasks such as enrolment assignments communicating in discussion forums and conference notes Graphics are used in assignments lecture notes navigation and icons Audio is used for communication in class between the user and virtual teacher Videos are used as learning tools and are accessible to assist students with their work Animations are used throughout to represent virtual classrooms students and teachers Text used in chat rooms e books discussion forum posts and transcripts conference notes email enrolment assignments Graphics images illustrations related to visual content of virtual classroom Used in assignments lecture notes navigational elements onscreen and icons Audio Digitised sound l
26. ies AND OR differences 2 between printed and multimedia versions Identifies a feature of printed or multimedia content 1 Question 28 b i Criteria Marks Provides a description indicating understanding of accessibility 2 Identifies a feature of accessibility 1 Question 28 b ii Criteria Marks Provides discussion of TWO methods demonstrating understanding of file 3 size and the scenario Provides description of a method s indicating understanding of file size 2 Identifies a feature of file size 1 aA Ds Poet TLE 2012 HSC Information Processes and Technology Marking Guidelines Question 28 b iii Criteria Marks Provides analysis demonstrating understanding of suitable media AND 4 how they relate to the scenario Provides discussion demonstrating an understanding of media used in 3 multimedia systems Provides a description demonstrating a limited understanding of media 2 Identifies a feature of media Question 28 b iv Criteria Marks Provides a prediction indicating understanding of new technological advancements and flexibility of the emerging technologies and relates to 5 the scenario Provides a prediction indicating some understanding of new technological 4 advancements and flexibility of the emerging technologies Provides a response indicating understanding of an emerging technology 3 relevant to multimedia systems
27. ive or pre recorded allows teachers and students to verbally communicate ideas and subject material Participants would need microphones speakers and or headphones Video live streaming or pre recorded material that can be accessed via the virtual classroom for lectures detailed explanation or demonstration of techniques Animation Cell based or Path based techniques can be used to improve the presentation of material that requires movement or multiple images to present ideas Web based hyper links to web based resources Tipa CHER ETENIUE 2012HSC Information Processes and Technology Sample Answers Question 28 b iv Answers could include New or emerging technologies that can be used to enhance the system can include the use of smart tablets developing apps improvements in wifi and 3G networks using virtual reality holographic images voice to text translator smart tv technology smart phone These emerging technologies provide flexibility through giving teachers and students access from anywhere in the world as long as they have access to a computer and internet connection using a variety of hardware devices to access information on the go use of advanced technology to enhance and motivate student learning use of different technologies to improve teacher and student communication 3D virtual worlds virtual reality training systems augmented reality
28. lected manually can later be processed in a batch This would allow the MegaShop to continue selling goods Question 25 b ii Sample answer Data mining would be advantageous to MegaShop as they would be able to combine transaction data and other data from multiple sources to identify customer behaviour from purchasing patterns OLAP tools could be used in order to identify these patterns MegaShop could then use this information to decide on appropriate business strategies n e BOARD OF STUDIES 2012 HSC Information Processes and Technology Sample Answers Question 25 b iii Answers could include Option 1 TWO Systems Option 2 ERP Two separate databases with restricted access to each Centralised data giving MegaShop and MiniShop access to current data Two systems in two locations would each require support ERP maintained by one team in one location Data not integrated not available to users in both locations concurrently Data from many departments in the organisation is integrated and available to all users Will likely require a larger workforce Potential to streamline workforce Software updates required for two locations with two update installations Possibly higher costs for update Software update required once in one location One licence purchase Question 25 b iv Answers could include Example of application for a hospital Discussion of
29. nstalled on the mobile security robot ii In what way is the IPTSecurity system human centred iii Assume that a warehouse has 20 such mobile robots patrolling its premises and each robot is relaying its measurements to the Control Centre as described above Explain the features and processes of the information system needed in the Control Centre for the information processes of processing and displaying data from the robots iv Discuss a potential alternative application of remotely monitored roaming robots with sensors in hazardous environments In your answer consider the process of collecting and how the technology can be further developed End of Question 27 19 Question 28 Multimedia Systems 20 marks a b Use a SEPARATE writing booklet i Define simulation ii How has tweening helped save time when creating animations iii Identify similarities and differences between printed and multimedia versions of the same content HiTech University is an online university Students access e books from the library videos conferences and discussion boards to assist them with their work All students can obtain work attend virtual classes and submit work online from home Teachers and students interact in a virtual classroom for each subject Students communicate with the teacher using virtual classroom technology The teacher then responds with explanations or uses the virtual board within the vi
30. nstrate understanding of online 2 environments Identifies a feature of a technology 1 Question 21 c Criteria Marks Describes features that demonstrate an understanding of help systems 2 Identifies a feature that helps users with online systems 1 Question 21 d Criteria Marks Sketches a database view and provides justification of data demonstrating 4 understanding of the context and database views Sketches a database view and or provides justification of data 3 demonstrating understanding of database views Attempts to sketch a database view or provides justification of data 2 demonstrating limited understanding of database Provides a feature of a database 1 Poet TLE 2012 HSC Information Processes and Technology Marking Guidelines Question 22 a Criteria Marks Sketches a clearly labelled diagram demonstrating an understanding of the 2 context Attempts a diagram that shows limited understanding of data 1 communication Question 22 b Criteria Marks Demonstrates clear understanding by identifying a suitable development 3 approach AND provides a thorough justification Provides identification of a development approach AND OR justification 2 of development Identifies a feature of development approaches 1 Question 22 c Criteria Marks Demonstrates an understanding of change in nature of work in context 2 Identi
31. ocation of the vehicle on a map and predict the injury producing capabilities of the crash This system can be installed anywhere in the vehicle The system contains GPS capabilities crash sensors and microprocessors which will be connected to the 3G network Once a crash occurs it will take up to 60 seconds to transmit a signal to the emergency base station An antenna will be placed on top of the car to help carry the signal Monitoring of the system will be by emergency response workers who will gather further information from phone calls that follow the initial crash detection Multiple calls from cars at the crash location will further indicate the severity of a crash a Sketch a diagram representing the path of data transmission from the car to the base station Label your diagram to indicate the transmission media b Recommend a development approach that would be appropriate for the above scenario Justify your choice c How will the new system change the nature of work for emergency response telephone operators d Describe how the data collected by the crash sensor would be formed into data packets You may use a diagram to support your answer 10 Question 23 10 marks Use the Question 23 writing booklet This is a portion of a flat file database containing data from a library Item Item Borrower Type Date Date Number Number borrowed returned of times borrowed IPT Today
32. pplication demonstrating understanding of the use of an 3 ERP Identifies features demonstrating a limited understanding of the use of an 2 ERP Identifies a feature of an ERP 1 Poet TLE 2012 HSC Information Processes and Technology Marking Guidelines Question 26 a i Criteria Marks Describes how what if models assist decision making indicating some 1 understanding of decision making Question 26 a ii Criteria Marks Provides description indicating understanding of the use of macros in 2 spreadsheets Identifies a use of macros in a spreadsheet or provides an example 1 Question 26 a iii Criteria Marks Provides discussion demonstrating an understanding of implications 3 arising from automated decision making Provides description demonstrating some understanding of implications 2 arising from automated decision making Identifies a feature of decision making 1 Question 26 b i Criteria Marks Identifies suitable computer hardware demonstrating understanding of the 2 scenario Identifies a feature of hardware 1 Question 26 b ii Criteria Marks Identifies the category of DSS AND provides justification demonstrating 3 understanding of categories of DSS and context Identifies a suitable category of DSS AND OR describes its distinguishing 2 characteristics demonstrating understanding of DSS Identifies a featu
33. re of decision support systems 1 Poet TLE 2012 HSC Information Processes and Technology Marking Guidelines Question 26 b iii Criteria Marks Provides discussion demonstrating understanding of the importance of 4 AND implications of the need for data quality as it relates to the scenario Provides description demonstrating understanding of the importance of 3 AND implications of the need for data quality Identifies issues demonstrating some understanding of the importance of 2 OR the implications of the need for data quality Identifies a feature of data quality 1 Question 26 b iv Criteria Marks e Proposes alternative application demonstrating a clear understanding of GIS and multiple sources of data AND including the information process 5 of processing e Proposes alternative application demonstrating an understanding of GIS AND OR multiple sources of data AND OR the information process of 4 processing e Proposes alternative application demonstrating some understanding of a 3 DSS e Provides an alternative application demonstrating limited understanding of 2 DSS Identifies feature s of a DSS 1 Poet TLE 2012 HSC Information Processes and Technology Marking Guidelines Question 27 a i Criteria Marks Provides an example of the use of a
34. robotic arm indicating some 1 understanding of its application in an automated manufacturing system Question 27 a ii Criteria Marks Provides description indicating an understanding of sensors 2 Identifies a sensor or a feature of a sensor 1 Question 27 a iii Criteria Marks Provides an explanation indicating a clear understanding of CNC in 3 CAD CAM systems Provides a description indicating understanding of the use of CNC in 2 manufacturing Identifies a feature of CNC 1 Question 27 b i Criteria Marks Provides description of the physical operation of a sensor indicating 2 understanding of the scenario Identifies a feature related to a sensor 1 Question 27 b ii Criteria Marks Provides response indicating clear understanding of human centred 3 systems and the scenario Identifies a reason s indicating some understanding of human centred 2 systems Identifies a feature of human centred systems 1 LU Poet TLE 2012 HSC Information Processes and Technology Marking Guidelines Question 27 b iii Criteria Marks Provides an explanation indicating a clear understanding of the features and processes of the system and relates to the scenario AND the 4 information processes of processing and displaying Provides a description indicating an understanding of automated manufacturing systems and or processes AND the information processes 3 of processing and or displaying
35. rtual classroom Describe an accessibility issue relating to the use of this system ii Photography students have been experiencing problems sending in their photos due to large file sizes Discuss TWO methods that could be used to reduce file size iii Analyse the different media suitable for use in displaying this system iv Consider the range of emerging technologies relevant to multimedia systems to predict new technologies that could be used to enhance online learning In your answer consider flexibility for participants End of paper _ 20 Board of Studies NSW 2012 J BOARD OF STUDIES NEW SOUTH WALES 2012 HSC Information Processes and Technology Marking Guidelines Section I Multiple choice Answer Key Question Answer 1 A 2 A 3 D 4 C 5 A 6 C 7 B 8 D 9 B 10 B 11 B 12 B 13 C 14 D 15 B 16 B 17 A 18 A 19 C 20 A Pot aT TAE 2012 HSC Information Processes and Technology Marking Guidelines Section II Question 21 a Criteria Marks Identifies appropriate field name with corresponding data type 2 Demonstrates some understanding of fields 1 Question 21 b Criteria Marks Identifies a range of appropriate technologies that demonstrate 3 understanding of technology needed to access the online bookshop Identifies technologies that demo
36. swers could include Answers could include discussion of multiple data sources for e Management of an agricultural region weather data stored data underground water source animal stocking rate crop rotation satellite images Emergency response and filtering management for commercial fishing weather data shipping boat movements seasonal movement of fish stocks tides currents locations of emergency response vessels Tourism Information System train bus plane timetables accommodation location and rates sight seeing locations restaurant data cinema data weather Tracking system for trucking transport and delivery company commonly used routes locations of trucks location of bases processing and delivery of goods customer information location weather traffic conditions Processing in these systems could deploy the use of mathematical modelling neural networks intelligent agents or expert systems with the resulting models displayed on geographical maps Note An appropriate discussion related to the alternative application should be included in a response Question 27 a i Sample answer A robotic arm could be used in the manufacture of a motor vehicle for the accurate positioning of heavy components Question 27 a ii Sample answer Pressure sensor to detect a vehicle by the increased pressure compared to no pressure motion sensor to detect the arrival of a vehicle magnetic loop to det
37. the address of the user The print server is the receiver of the transmission medium It is the source of the message being sent to the destination It is the destination of the message being sent by the source An insurance company pays a loyalty bonus to customers who have been insured for at least six months In their first year with the company Premium cover customers receive 500 and Basic cover customers get 300 After one year all customers receive a 500 bonus Length of Type of Amount of time insured insurance bonus Loyalty bonus X 500 payment Premium cover 500 Y c Basic cover _ 300 Z Not eligible Which of the following shows the correct set of conditions for X Y and Z A B C D X Y Z gt l year gt 6 months AND lt 1 year 6 months gt l year 26months OR lt 1 year 6 months lt year 2 6 months AND 2 1 year 6 months lt year 26 months OR lt 1 year 6 months 8 Section II 40 marks Attempt Questions 21 24 Allow about 1 hour and 10 minutes for this section Answer each question in the appropriate writing booklet Extra writing booklets are available If you include diagrams in your answer ensure that they are clearly labelled Question 21 11 marks Use the Question 21 writing booklet An information system in context diagram is shown for an online bookshop Users Environment Online shoppers
38. tion 25 continued b MegaShop a multinational retail company has just taken over MiniShop an Australian company MegaShop needs to make changes to its systems so that the existing processes and data of MiniShop are preserved but integrated with the MegaShop systems and data The analysts have arrived at two possible alternatives Option 1 Maintain the two existing systems but allow each company access to the data of the other company Option 2 Integrate the systems from the two companies using an enterprise resource planning ERP system to create MegaShop ERP ERP systems integrate information across an entire organisation providing modules for finance and accounting retail and business processes retail sales and servicing human resources customer support supply chain management i Describe alternative procedures that might need to be followed if the retail sales and servicing module of the ERP system becomes unavailable ii Why would the opportunity for data mining provided by the MegaShop ERP be an advantage for the multinational company iii Compare Option 2 where the ERP integrates the two systems with Option 1 where the two existing systems are maintained iv Discuss an alternative application of an ERP that uses a centralised database to store transactions In your answer consider the information processes of organising and storing to integrate data End of Question 25 15 Question 26
39. to data backup 1 Question 25 a iii Criteria Marks Provides explanation demonstrating an understanding of the reasons for 3 batch processing Provides description demonstrating an understanding of batch processing 2 Identifies a feature of batch processing 1 Question 25 b i Criteria Marks Provides description of alternative procedures indicating understanding of 2 scenario and ERP systems Identifies a feature of alternative procedures 1 Question 25 b ii Criteria Marks Provides explanation indicating an understanding of data mining and the 3 scenario Provides description indicating understanding of data mining 2 Identifies a feature of data storage 1 Poet TLE 2012 HSC Information Processes and Technology Marking Guidelines Question 25 b iii Criteria Marks Provides a comparison indicating clear understanding of ERP and the 4 scenario Provides comparison indicating understanding of ERP 3 Provides a comparison indicating limited understanding of ERP 2 Identifies a feature of the scenario or ERP 1 Question 25 b iv Criteria Marks Provides discussion of alternative ERP application demonstrating understanding of the use of an ERP and the processes of organising and 5 storing Provides description of alternative ERP application demonstrating 4 understanding of ERP and the processes of organising and or storing Identifies an a
40. undertaken frequently by automating a sequence of key strokes A high level programming language is provided to perform this task Question 26 a iii Answers could include Automated decision making removes people from decisions meaning that any unexpected situations or criteria are not considered A poor decision may result from failure to consider all important and related factors that are not programmed into the automated decision making AND OR Automated decision making can be applied to simple clear decisions like a stock re order level This removes the need for human intervention and can make processes more efficient Question 26 b i Answers could include The hardware necessary to support SiroFire includes Fast and powerful processor s that are able to implement complex models in a short timeframe Possibly multi processors Large storage capabilities to store the graphical images used by SiroFire High quality screens to provide clear images of the models calculated by SiroFire 1 CHER ETENIUE 2012HSC Information Processes and Technology Sample Answers Question 26 b ii Answers could include The category of DSS for SiroFire is unstructured The models that SiroFire uses present predictions of the fire paths and people must ultimately make decisions about appropriate actions The decisions require human judgement and insight into the present situation The decisions are non routin
41. untries who communicate remotely using online chat video conferencing and editing of shared documents Teams often use the internet to recruit other members and to make their projects available Also other development teams are able to revise and improve the product and to provide greater variety of features to the community a Identify the participants of an open source project and describe how they can contribute to the development of the project b Design a screen display that would allow team members from different locations to collaborate c Discuss positive and negative issues that you should consider if you were responsible for the installation maintenance and help desk support of a large open source software product in an organisation a3 BLANK PAGE Please turn over mes eee Section III 40 marks Attempt TWO questions from Questions 25 28 Allow about 1 hour and 10 minutes for this section Answer each question in a SEPARATE writing booklet Extra writing booklets are available If you include diagrams in your answer ensure that they are clearly labelled Question 25 Transaction Processing Systems 20 marks Use a SEPARATE writing booklet a i Define an online transaction processing system OLTP ii Describe the importance of data backup to the online submission of student assignments iii Explain reasons for using batch processing systems Question 25 continues on page 15 xd Ques
42. us D star hybrid bus ring The following 8 bit ASCII character and a parity bit were transmitted without error ASCII character Parity bit 00110010 1 Which of the following would result in an error message if sent using the same parity A 01010111 B 01100101 C 10111000 0 D 00010010 0 11 12 13 A new database system for the management of records has been implemented in a doctors surgery Paper records will continue to be used until all staff are trained and confident in using the new system Which conversion method is being used A Direct B Parallel C Phased D Pilot The table shows a partial data dictionary from a database Field name Size Data type IDnum 10 number Surname 20 text Firstname 20 text Phone 10 text What is the approximate amount of memory needed to store 10 000 records in this database A 60Kb B 600 Kb C 6000 Kb D 60000 Kb Users have recognised that there are problems with an existing information system Which of the following would help in finding the cause of the problem A Identifying participants B Producing a new Gantt chart C Analysing the system D Retraining participants to use the system 14 Within a school database which of the following describes the relationship between data in a student table and data in a subject table 15 1
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