“SHARPE Interface” User`s Manual Version 1.01
Contents
1. SHARPE Interface User s Manual Version 1 01 Contact information Professor Kishor S Trivedi Center for Advanced Computing and Communication CACC Department of Electrical and Computer Engineering Duke University Durham NC 27708 USA Phone 919 660 5269 Fax 919 660 5293 kst ee duke edu August 1999 1 Preface The purpose of this manual is to introduce the SHARPE Symbolic Hierarchical Automated Reliability and Performance Evaluator modeling tool and illustrate its features to introduce the Graphical User Interface SHARPE GUI SHARPE is a good tool to use for learning about and applying modeling techniques because it supports a variety of model types and for most of the model types provides more than one analysis algorithm from which the user can choose It allows the user to choose when to combine different model types which ones to combine and how to combine them SHARPE models were designed to answer the question given time dependent functions that describe the behavior of the components of a system and a description of the structure of the system what is the behavior of the whole system as a function of time The functions might be cumulative distribution functions CDFs for component failure times CDFs for task completion times or the probabilities that components are available at a given time The system structure might be specified for example in the form of a fault tree a task graph or a2. change the name of the selected model Click on the Validate button to update the information 4 3 Save a model The user has the possibility to save a model outside a project Click on the File menu and select Save Model Models are saved with the following extensions flt fault tree rbd reliability block diagram mkv Markov chain 15 gpn generalized stochastic Petri net pfq product form queuing network Figure 4 2 Delete a model 4 4 Delete a model To delete a model from the current project click with the right button on the model s name which appears in the list inside the project s frame This action is available only when 2 models or more have been created inside the current project 4 5 Methods Each type of model has its own way to be designed When a model is created or opened a canvas appears on the right side of the current package s frame Clicks with the right button of the mouse will generate different pop ups depending on the object that has been clicked on In the chapters a description of all the pop ups possible is given and also the description of the buttonBar related to the type of the current model 16 Chapter 5 Design of a fault tree model 5 1 Creation of the model After selecting a fault tree model the user should design his her model by clicking on the Top event object with the right button of the mouse Right mouse button clicks g
3. 10 2 1 Panel 10 2 2 Station 10 2 3 Arc 11 Design of a multi chain product form queuing network model 39 11 1 Creation of the model 11 1 1 How to create a station 11 1 2 How to move a station 11 1 3 How to draw an arc 11 1 4 How to modify an arc 11 1 5 How to delete some objects from the model 11 1 6 How to refresh the model 12 Design of a series parallel graph model 41 12 1 Creation of the model Use of the buttonBar 12 1 1 How to create a node 12 1 2 How to move a node 12 1 3 How to draw an arc 12 1 4 How to delete some objects from the model 12 1 5 How to refresh the model 6 13 Design of a hierarchical model 43 13 1 Hierarchy feature 13 1 1 From a fault tree model 13 1 2 From a reliability block diagram model 13 2 Hierarchy structure 13 3 Hierarchy dialog box 14 Definition of constants variables and functions 46 14 1 Declaration of a symbol 14 1 1 Creation of a Constant 14 1 2 Creation of a Variable 14 1 3 Creation of a Function 14 2 Declare in each model the parameters 14 2 1 Fault tree Parameter for an event 14 2 2 Reliability block diagram Parameter for a block 14 2 3 Markov chain Parameter for arc 14 2 4 Generalized stochastic Petri net Parameter for place transition arc 14 2 5 Product form queuing network Parameter for station arc 15 Analysis of a model 50 15 1 Analysis of the model 15 2 Parameter
4. Figure 7 3 Creation of a parallel structure 28 Figure 7 4 Creation of a parallel structure result K out of N action Action not yet implemented This is used to create a K out of N structure when some blocks contained in the structure are different If all the blocks have the same component type click on Parameter in the event s pop up then define the selected block to have its value K and N different from 1 see parameters creation Bridge action Creates a bridge structure Delete action The Delete button will delete the selected object from the panel Clear action The Clear button deletes all the objects which are in the panel area Undo action The Undo button erases the last action made in the design Hierarchy action See Hierarchy called 7 2 2 Bridge block Figure 7 5 Pop up after clicking on a block from a bridge 29 Parameter action A frame appears on the screen to help define each block of the current rbd model See parameter creation Delete bridge action The Delete button will delete the bridge contained the selected block from the panel Clear action The Clear button deletes all the objects which are in the panel area Hierarchy action See Hierarchy called 7 3 Use of the buttonBar 30 Chapter 8 Design of a reliability graph model 8 1 Use of the buttonBar 8 1 1 How to crea
5. How to move a station Station can be moved by clicking on the node then dragging the mouse to the new location How to draw arcs Arcs are drawn by clicking left button of the mouse on a station then dragging the mouse by releasing it over another station which should be connected by the new arc The release of the button inside the panel and not on a station will cancel the action of drawing the arc 10 2 3 Arc Figure 10 3 Pop up after clicking on an arc 38 Delete action The user can remove an arc by clicking on this button Properties action Used to assign a probability to the arc 39 Chapter 11 Design of a multi chain product form queuing network model 11 1 Creation of the model 11 1 1 How to create a station Click on Station then click on the panel with the left button of the mouse 11 1 2 How to move a station Click on Move in the buttonBar then click on a node and drag the mouse to the new location finally release the mouse 11 1 3 How to draw an arc Click on Arc in the buttonBar then click on a station and drag the mouse By releasing the mouse over another station the arc is draw connecting the 2 nodes The release of the button inside the panel and not on a node will cancel the action of drawing the arc 11 1 4 How to modify an arc 40 Click on Modif Arc the intermediate points are then representing by a small square You can move the squares by
6. Markov chain The time dependent functions describing the component behavior are restricted by SHARPE to be exponential polynomial in form This is not a great restriction because many of the most commonly used distribution functions have this form and much of the work that has been done in fitting distributions to data has used exponential polynomials The use of SHARPE in many universities and companies the new requirements of the users the textual interface of the package were pushing developers to have a GUI of SHARPE in the market This interface is implemented in JAVA to be portable in most of any platform This version has 8 types of model included in it Fault tree Reliability block diagram reliability graph Markov chain Product form queuing network Multi chain Product form queuing network Series Parallel graph Generalized stochastic Petri net 2 Contents Preface 1 Introduction 8 1 1 Organization of this manual 1 2 Conventions used 2 Running SHARPE Interface 9 3 Project 10 3 1 Creation of a project 3 2 Save a project 3 3 Modification of the current project properties 3 4 Information of the current project 3 5 Open a project 3 6 Close a project 4 Model 14 4 1 Creation of a model 4 2 Modification of model properties 4 3 Save a model 4 4 Delete a model 4 5 Methods 3 5 Design of a fault tree model 16 5 1 Creation of the model 5 2 More explanations of the design 5
7. action At any time during the design the type of the current Markov chain can be known The possible types are Absorbing Markov chain Irreducible Markov chain Non irreducible Markov chain Multi chain many independent Markov chains Markov chain with isolated node s 22 6 2 2 Node popup Figure 6 2 Pop up after clicking on a node Change Name action Used to change the name of a node Delete action When a node is removed all the arcs which were connected to it will be removed also 6 2 3 Arc popup Figure 6 3 Pop up after clicking on an arc Rate action A value for the rate of an arc may be entered with the Panel Rate matrix action or through this action After entering and validating the new value this value will be displayed inside the panel in the middle of the arc selected Delete action This removes an arc 6 3 Use of the buttonBar 6 3 1 How to create a node Click on Node then click on the panel with the left button of the mouse A dialog box appears asking for the name of the new node click on OK to create the node 6 3 2 How to move a node 23 Click on Move in the buttonBar then click on a node and drag the mouse to the new location finally release the mouse If you want to move many nodes at the same time you can select many nodes neither by clicking one after one with the left button and Ctrl key pressed or draw a rectangle co
8. analysis Click on Cancel to come back to the design After clicking on Analyze the following frame appears A tabset panel inside this frame is composed of 5 parts Parameters SHARPE code Output SHARPE Graph Personal Modification 51 Figure 15 2 Selection of the outputs 15 2 Parameter not defined in the main model Outputs chosen On the top you can see a list contained all the output functions related with the type of the main model Click on one of the outputs then click on the right blue arrow to add the selected output to be analyzed Some outputs required some parameters like for the function tvalue you need to enter a value for the time t A message will appear on the message bar if you didn t enter all the values for the selected output Also if the model is calling some variables not defined a grid appear on the right bottom part expecting the user to complete the values of each parameter for any output added to be analyzed To give value for the parameters click inside the grid in the column 2 the cell becomes black so you are ready to enter a value Then after you have finished to choose the outputs expected click on Run to call SHARPE At the end of the execution of SHARPE the GUI shows the results 15 3 SHARPE code from the current model The SHARPE code for the current model can be viewed Click on Analysis Editor and then on Analysis A frame appears on the screen Cl
9. copy paste or cut a part of the model Select many nodes neither by clicking one after one with the left button and Ctrl key pressed or draw a rectangle containing the expected nodes left click on the panel then drag the mouse and release it When many nodes are selected you can click on Copy or Cut By clicking on Paste and moving the mouse over the panel another rectangle appears which contains the new nodes created The user should click on the new location to display the new nodes The Paste action is available only after the user has selected nodes and clicked on Copy or Cut 8 1 6 How to delete some objects from the model Click on Delete then click on a node or an arc which would be deleted 8 1 7 How to refresh the model Click on Refresh to repaint the panel 32 Chapter 9 Design of a generalized stochastic Petri net model 9 1 Creation Generalized stochastic Petri net After selecting a GSPN model the user should design his her model by clicking on the panel with the right button of the mouse The principle is to click an object with the right button of the mouse then select the action from the popup All the methods are explained in the Methods Actions part 9 2 Methods Generalized stochastic Petri nets When the user clicks on an object a pop up appears on the screen We will explain for each object the methods available 33 9 2 1 Panel Clicking on l
10. on Rate matrix 14 2 4 Generalized stochastic Petri net Parameter for place transition arc For a place Click on a place with the right mouse button then click on Property For a transition Click on a transition with the right mouse button then click on Property For an arc Click on an arc with the right mouse button then click on Properties 14 2 5 Product form queuing network Parameter for station arc For a station Click on a station with the right mouse button then click on Properties For an arc Click on an arc with the right mouse button then click on Property 50 Chapter 15 Analysis of a model 15 1 Analysis of the model Figure 15 1 Analysis frame Analysis Visualization of the results produced by SHARPE Click on Analysis Editor then on Analysis If the project has more than one model the following window appears You can choose which model is the main one to be analyzed for SHARPE You can see in the left bottom part a list which contained the models called from the one chosen to be the main model On the right part you can see on the top a list which contains the other models of the current project You can add some models in the code by selecting one model at a time in this list then clicking on the Add button The reverse action removing a model from the current code is done by clicking on the Remove button Click on Analyze to continue in the
11. prompt the message Out of the memory for the initial environment follow these instructions For Windows95 amp Windows98 At the top of this MS DOS prompt you have some icons Click on the Properties icon Then another window appear Click on Memory in the tabset at the top of this window You need to change the value of the memory allowed for the initial environment top right The value should be at this time Auto put it to 2048 Then click on the button Apply bottom right in the window then Ok Close the MS DOS prompt and click again and the Interface SHARPE icon Figure 2 1 Main frame When the application is started the user can see a frame containing 6 menus Fig 2 1 File Model Editor Analysis Editor Plot Browse Examples Help Each of these menus will be described in the following chapters 10 Chapter 3 Project 3 1 Creation of a project The user should click on File menu then New menu to create a new project or use the shortcut reserved for this action Shortcut Ctrl N anytime during the session 1 When the Information for the new project dialog box appears fill out the various fields and click OK The different fields A project name name rgl will be the project file containing the information for all the models created The type of the first model which will be implemented in this project The name of the first model The owner s name The
12. 2 1 Top Event 5 2 2 Gate 5 2 3 Event 5 3 Use of the buttonBar 6 Design of a Markov chain model 21 6 1 Creation of the model 6 2 Methods Markov chain 6 2 1 Panel popup 6 2 2 Node popup 6 2 3 Arc popup 6 3 Use of the buttonBar 6 3 1 How to create a node 6 3 2 How to move a node 6 3 3 How to draw an arc 6 3 4 How to modify an arc 6 3 5 How to copy paste or cut a part of the Markov chain model 6 3 6 How to delete some objects from the model 6 3 7 How to refresh the model 6 3 8 How to complete the matrix 4 7 Design of a reliability block diagrams model 26 7 1 Creation Reliability block diagram 7 2 Methods Reliability block diagram 7 2 1 Block 7 2 2 Bridge block 7 3 Use of the buttonBar 8 Design of a reliability graph model 30 8 1 Use of the buttonBar 8 1 1 How to create a node 8 1 2 How to move a node 8 1 3 How to draw an arc 8 1 4 How to modify an arc 8 1 5 How to copy paste or cut a part of the model 8 1 6 How to delete some objects from the model 8 1 7 How to refresh the model 9 Design of a generalized stochastic Petri net model 32 9 1 Creation Generalized stochastic Petri net 9 2 Methods Generalized stochastic Petri nets 9 2 1 Panel 9 2 2 Place 9 2 3 Transition 9 2 4 Arc 5 10 Design of a product form queuing network model 36 10 1 Creation Product form queuing network 10 2 Methods Product form queuing network
13. clicking left button over a square then drag the mouse until the new location The release of the mouse will put the selected square to the location chosen You can add intermediate points by clicking on an arc and drag the mouse to the location expected for the new point You can also delete any intermediate point by clicking with the right button of the mouse over a square and select the action Delete 11 1 5 How to delete some objects from the model Click on Delete then click on a station or an arc which would be deleted 11 1 6 How to refresh the model Click on Refresh to repaint the panel 41 Chapter 12 Design of a series parallel graph model 12 1 Creation of the model Use of the buttonBar 12 1 1 How to create a node Click on Node then click on the panel with the left button of the mouse 12 1 2 How to move a node Click on Move in the buttonBar then click on a node and drag the mouse to the new location finally release the mouse 12 1 3 How to draw an arc Click on Arc in the buttonBar then click on a node and drag the mouse By releasing the mouse over another node the arc is draw connecting the 2 nodes The release of the button inside the panel and not on a node will cancel the action of drawing the arc 12 1 4 How to delete some objects from the model 42 Click on Delete then click on a node or an arc which would be deleted 12 1 5 How to refresh the mod
14. ction Figure 5 1 Add a gate Add Gate action The Add Gate pop up appears Choose the gate to be created and also the number of input events the new gate will have A description of the gate can be given at this time After clicking on the OK button the new gate is shown in the panel Clear action The Clear action deletes all the objects which are in the panel area 5 2 2 Gate Add event action This is used to change the number of events input to the gate Enter only a number lower to the previous value To have fewer events than the current number use the Cut action on the future deleted events 18 Figure 5 2 Gate s pop up Change to an event action This action is used to change a gate to an event Copy action This action will copy the current gate to the clipboard if an event is selected after copying a gate and Paste action selected from the pop up the event will be replaced by the copied gate When a gate is copied from the canvas all gates and events which are inputs to that gate are placed in the clipboard Cut action This action will delete the selected gate Clicking on an event and choosing Paste will result in the event being replaced by the cut gate When a gate is cut from the panel all gates and events which are inputs to that gate are deleted and placed on the clipboard as well Identify action The Identify button will displa
15. ction click on the New button Fill up the field Name then choose Function for the field Symbol type Enter the body of the new variable Enter also the parameters for the new function On the top right type a name for the new parameter then click on the Add button just below this text field Repeat this action until you have entered all the parameters Click on Add to validate the creation of the new function bottom left You can modify by clicking on the list top left after selecting Variable in the Symbol defined The selected variable appears with its value on the screen change the fields then click Modify 14 2 Declare in each model the parameters 14 2 1 Fault tree Parameter for an event 48 Click on the right mouse button on an event and then select Parameter A frame appears on the screen Select the distribution function you want for the selected event Figure 14 4 Distributions available for a fault tree model Figure 14 5 Metalanguage 14 2 2 Reliability block diagram Parameter for a block Click on the right mouse button on an event and then select Parameter A frame appears on the screen Select the distribution function you want for the selected block 49 Figure 14 6 Parameter s frame for RBD 14 2 3 Markov chain Parameter for arc For a arc Click on an arc with the right mouse button then click on Rate or click with the right mouse button on the panel then
16. e avoided by using hierarchical model composition The ability of SHARPE to combine results from different kinds of models makes it possible to use state space methods for those parts of a system that require them and use non state space methods for the more well behaved parts of the system 13 1 1 From a fault tree model Click on an event with the right button then click on Hierarchy in the popup A frame is displayed You can call a model which is already in the current package or call a new model For a new model you need to give the type and the output used for the SHARPE code See the paragraph Hierarchy dialog box 44 A red square represents an event which called another model 13 1 2 From a reliability block diagram model Click on a block with the right button then click on Hierarchy in the popup A frame is displayed You can call a model which is already in the current package or call a new model For a new model you need to give the type and the output used for the SHARPE code See the paragraph Hierarchy dialog box A block which called another model is represented by a red rectangle 13 2 Hierarchy structure To visualize the hierarchy structure s tree between all the models created in the current package click on the Model Editor menu and then on the Information menu Click on the Hierarchy tab 45 13 3 Hierarchy dialog box Click on Va
17. ears which contains the new nodes created The user should click on the new location to display the new nodes The Paste action is available only after the user has selected nodes and clicked on Copy or Cut 6 3 6 How to delete some objects from the model Click on Delete then click on a node or an arc which would be deleted 6 3 7 How to refresh the model Click on Refresh to repaint the panel 6 3 8 How to complete the matrix Rate Matrix action 25 This is used to enter the rate values of each of the already created arc as well as for arcs that have not been yet implemented The yellow rectangles show the arcs already implemented but which don t have a rate value at the current time Values entered in each of the white rectangles inside the grid will generate new arcs in the panel after the dialog box has been exited The button add creates a new node state and enters a new column and row inside the grid A new node will also appear on the screen after this action Because it is difficult to know where to insert the new node in a good location the node will be placed on the top left of the panel If more than one node is created with the button add the new nodes will be located in the same spot Each new node can be moved to the desired position after leaving the dialog box clicking the button OK Figure 6 4 Rate matrix 26 Chapter 7 Design of a reliability block diagram
18. eft mouse button will create a place or a transition To change this option click on the buttonBar on Place Imm Trans or Timed Trans Clear action All the objects that are inside the panel will be deleted places transitions arcs and labels Undo action This action is not valid in this version of the interface 9 2 2 Place Figure 9 1 Pop up after clicking on a place Property action Used to assign a name and a number of tokens to the place Figure 9 2 Property of a place Display Number Token s action Used to display or not the number of tokens in the middle of all the places If there is no token in one place nothing is displayed instead to show the value 0 Figure 9 3 Display the number of tokens 34 Hierarchy action This action is not valid in this version it will be available in the next version Delete action When a place is removed all the arcs that are connected to it will be removed also How to move a place The user should click first on the button Move from the buttonBar then move a place by clicking on the object then drag the mouse to the new location How to draw arcs Arcs are drawn by clicking left button of the mouse on a place after selecting the button Arc or Inhibitor Arc from the buttonBar then dragging the mouse by releasing it over a transition which should be connected by the new arc The release of the button inside
19. el Click on Refresh to repaint the panel 43 Chapter 13 Design of a hierarchical model 13 1 Hierarchy feature So far we have shown how to use non state space models reliability block diagrams fault trees and product form queuing networks Markov and GSPN models for performance and reliability analysis The advantage of using non state space models like block diagrams and fault trees is that they are efficient to specify and solve However the solution of these models assumes the components are independent For instance in a block diagram fault tree or reliability graph the components must be completely independent of one another in their failure and repair behavior A failure in one component cannot affect the operation of another component and components cannot share a repair facility Markov models provide the ability to model systems that violate the assumptions made by the non state space models but at the price of a state space explosion A system having n components may require up to 2 n states inits Markov chain representation This problem can be handled in two ways It can be tolerated or it can be avoided Large model tolerance must apply to specification storage and solution of the model If the storage and solution problems can be solved the specification problem can be solved by using more concise and smaller model specifications that can be automatically transformed into Markov models Large models can b
20. enerate popups You can create a gate by clicking on an event then click on Add gate You can change a gate to an event by clicking on a gate then click on Change to an event You can enter the parameter of an event by clicking on an event then click on Parameters 5 2 More explanations of the design After the fault tree model is selected there will be one block displayed in the panel This block serves as the top event of the fault tree The construction of the model begins by clicking on the top event block A pop up will then appear on the screen After clicking on Add Gate a dialog box will appear Select one of the gate types and fill in the fields that appear Once the gates have been created more gates can be added or the properties of the created events can be changed Basic events which are created initially will have a 17 white circle to signify that the property for these events has not been defined Once the property has been defined for a particular event the event will be represented in orange To define the properties for a particular event select the desired event by clicking the right mouse button over the event A pop up will appear on the screen We will explain for each object the methods available 5 2 1 Top Event The only possibility at the beginning of the creation is adding a new gate When the model contains at least one gate the pop up contains only the Clear a
21. ick on SHARPE code in the tabset object 52 Figure 15 3 Selection of the outputs Figure 15 4 SHARPE code 15 4 SHARPE output from the current model The SHARPE output for the current model can be viewed Click on Analysis Editor and then on Analysis A frame appears on the screen Click on output SHARPE in the tabset object 15 5 Graph The interface has the ability to represent SHARPE output as a plot When Analysis Editor then Analysis is clicked a frame appears on the screen Click on Graph in the tabset object Fill up the following fields Name of the graph 53 Start value Stop value Increment value After completing all the fields click on Run The plot appears in a frame If the main model contains parameters not defined the button Run is disabled click on the button Parameter to enter the value of the parameters the button Run will be enabled The plot can be saved in postscript format by clicking on Print Plot 15 6 Personal modification of the SHARPE code After the design phase personal modifications to the code can be made in the Personal Modification tab You can save the code in a text file by clicking on the button Print Text 54 Chapter 16 Plotting the results of a model 16 1 Open a plot Click on the button Open The graph files have the extension dat 16 2 Combine a plot You can combine many pl
22. lidate to confirm the call from the current event to the specific model Click on No Hierarchy to erase the link from the current event to a specific model Click on Cancel to exit this dialog box without any changes Figure 13 1 Hierarchy frame 46 Chapter 14 Definition of constants variables and functions 14 1 Declaration of a symbol To create a new symbol click on Model Editor menu and then on Symbol menu 14 1 1 Creation of a Constant To create a new constant click on the New button Fill up the field Name then choose Constant for the field Symbol type Enter a value Click on Add to validate the creation You can modify by clicking on the list top left after selecting Constant in the Symbol defined The selected constant appears with its value on the screen change the fields then click Modify Figure 14 1 Constant 14 1 2 Creation of a Variable To create a new variable click on the New button Fill up the field Name then choose Variable for the field Symbol type Enter the body of the new variable Click on Add to validate the creation You can modify by clicking on the list top left after selecting Variable in the Symbol defined The selected variable appears with its value on the screen change the fields then click Modify 47 Figure 14 2 Variable 14 1 3 Creation of a Function Figure 14 3 Function To create a new fun
23. luation can be performed 57 17 4 Help Frame Figure 17 2 Help frame The purpose of the Help page is to provide online help for the user during the use of the interface The Help page is in a hypertext format such that when the user selects certain keywords in the text the Help page is changed to reflect the information of the selected keyword
24. not defined in the main model Outputs chosen 15 3 SHARPE code from the current model 15 4 SHARPE output from the current model 15 5 Graph 7 15 6 Personal modification of the SHARPE code 16 Plotting the results of a model 54 16 1 Open a plot 16 2 Combine a plot 16 3 Print a plot 16 4 Save a plot 16 4 Zoom the plot 17 Help features inside the GUI 56 17 1 Use of two statusBars 17 2 Definition of the button Bars 17 3 Browse Frame 17 4 Help Frame 8 Chapter 1 Introduction 1 1 Organization of this manual The guide assumes the user already has some experience with Reliability Availability It is intended for first time users of the SHARPE interface 1 2 Conventions used The following conventions are followed in the manual 1 All buttons are displayed in boldface 2 All pop up buttons are displayed in italic 3 A click is always left mouse button unless explicitly mentioned otherwise 4 LMB left mouse button RMB right mouse button 9 Chapter 2 Running SHARPE Interface The user should have received a zip disk containing the directory Sharpe Gui or the file Sharpe Gui zip 1 To start the interface you need to put the directory Sharpe Gui from the zip disk in the directory C Sharpe Gui contains the interface code or unzip the file in the directory C 2 Open Windows Explorer then go in the directory C Sharpe Gui click on the icon Interface SHARPE If you have in your MS DOS
25. ntaining the expected nodes left click on the panel then drag the mouse and release it When many nodes are selected move one of the nodes selected will move all of them 6 3 3 How to draw an arc Click on Arc in the buttonBar then click on a node and drag the mouse By releasing the mouse over another node the arc is draw connecting the 2 nodes The release of the button inside the panel and not on a node will cancel the action of drawing the arc 6 3 4 How to modify an arc Click on Modif Arc the intermediate points are then representing by a small square You can move the squares by clicking left button over a square then drag the mouse until the new location The release of the mouse will put the selected square to the location chosen You can add intermediate points by clicking on an arc and drag the mouse to the location expected for the new point You can also delete any intermediate point by clicking with the right button of the mouse over a square and select the action Delete 24 6 3 5 How to copy paste or cut a part of the Markov chain model Select many nodes neither by clicking one after one with the left button and Ctrl key pressed or draw a rectangle containing the expected nodes left click on the panel then drag the mouse and release it When many nodes are selected you can click on Copy or Cut By clicking on Paste and moving the mouse over the panel another rectangle app
26. o action This action is not valid in this version of the interface Delete action The current arc receiving the click event will be deleted when the user pressed the button Delete in the Arc pop up 36 Chapter 10 Design of a product form queuing network model 10 1 Creation Product form queuing network After selecting a PFQN model the user should design his her model by clicking on the panel with the right button of the mouse Right mouse button clicks generate popups The popup sections are explained in the Methods Actions part 10 2 Methods Product form queuing network When the user clicks on an object a pop up appears on the screen We will explain for each object the methods available 10 2 1 Panel Station action Stations are created by clicking on the panel with the left mouse button Clear action The Clear button deletes all the objects which are in the panel area 37 Figure 10 1 Parameter for a PFQN model Refresh action The Refresh button will repaint the panel Parameters action This is used to enter the model name and populations of the model 10 2 2 Station Delete action This is used to delete a station When a station is removed all the arcs which were connected to it will also be removed Properties action Used to assign name service rate and distribution parameters for the station Figure 10 2 Property for a station
27. ots in one plot if any plots which will be opened are in the same interval x1 x2 when the same number of points Click on the button Combine to add another plot to the current one The graph files have the extension dat 16 3 Print a plot Click on the button Print to print the current plot 16 4 Save a plot Click on the button Save As to save the current plot 55 16 4 Zoom the plot To zoom on a specific area click on the plot when the key shift pressed then drag the mouse to create an rectangle which will define the area you want to zoom 56 Chapter 17 Help features inside the GUI 17 1 Use of two statusBars The interface has 2 status Bars loacted on the top of the main frame During the session some messages will appear to help the user during his design 17 2 Definition of the button Bars For each type of model the buttonBar look is different If the user pass over a button the description of the button will appear in the right status Bar 17 3 Browse Frame Figure 17 1 Browse frame The Browse button produces the frame shown in Figure 18 This frame gives the details of all the names attributes and values which are used in the model It also displays how many events use each as its property Another important aspect of the browse frame is that it will alert the user as to how many events have yet to have their property defined This is important because all events need to be defined before an eva
28. s model 7 1 Creation Reliability block diagram After selecting a RBD model the user should design his her model by clicking on the only block at this time present in the panel with the right button of the mouse Right mouse button clicks generate popups The popup sections are explained in the Methods Actions part For examples You can create a series structure by clicking on a block then click on Series You can create a parallel structure by clicking on a block then click on Parallel You can enter the parameter of a block by clicking on an event then click on Parameters 7 2 Methods Reliability block diagram When an object is clicked on a pop up appears on the screen We will explain for each object the methods available 7 2 1 Block Parameter action A frame appears on the screen to help to define each block of the current rbd model See parameter creation 27 Identify action The Identify button will display a frame contained the description of the current block When the mouse enters another block the frame displayed the description of this block The user should close the windows by clicking on Identify again or on the X top right of the frame Figure 7 1 Creation of a series structure Figure 7 2 Creation of a series structure result Series action Creates a series structure Parallel action Creates a parallel structure
29. te a node Click on Node then click on the panel with the left button of the mouse 8 1 2 How to move a node Click on Move in the buttonBar then click on a node and drag the mouse to the new location finally release the mouse If you want to move many nodes at the same time you can select many nodes neither by clicking one after one with the left button and Ctrl key pressed or draw a rectangle containing the expected nodes left click on the panel then drag the mouse and release it When many nodes are selected move one of the nodes selected will move all of them 8 1 3 How to draw an arc 31 Click on Arc in the buttonBar then click on a node and drag the mouse By releasing the mouse over another node the arc is draw connecting the 2 nodes The release of the button inside the panel and not on a node will cancel the action of drawing the arc 8 1 4 How to modify an arc Click on Modif Arc the intermediate points are then representing by a small square You can move the squares by clicking left button over a square then drag the mouse until the new location The release of the mouse will put the selected square to the location chosen You can add intermediate points by clicking on an arc and drag the mouse to the location expected for the new point You can also delete any intermediate point by clicking with the right button of the mouse over a square and select the action Delete 8 1 5 How to
30. text area reserved for the description of the new project called Commentary 2 A frame now appears on the screen after the validation of the user The frame consists of 2 parts The left part is a list containing the names of the models present in this project The right part is the panel used to design the current model selected in the list from the left part 3 2 Save a project The user can save the current project with all the models implemented inside it The user can also save a single model see Save a model Projects are saved with the extension rgl and the models are saved as flt fault tree rbd reliability block diagram mkv Markov chain 11 gpn generalized stochastic Petri net pfq product form queuing network mpf multi chain product form queuing network rg reliability graph gph series parallel graph Figure 3 1 New project 3 3 Modification of the current project properties Click on the Model Editor menu then on Information The Project and models information dialog box should appear In this dialog box the user can modify The name of the current project The owner s name The description of the project Click on the Validate button to update the values 3 4 Information of the current project 1 To change the name of the project Click on the Model Editor menu and then on the Information men
31. the description of this event The user should close the windows by clicking on Identify again or on the X top right of the frame 5 3 Use of the buttonBar Add Gate Click on Add Gate then click on an event to replace it by a new gate Modif Gate Click on Modif Gate then click on a gate to modify this gate can modify the type AND OR KOFN can modify the number of events enter a description Hierarchy Click on Hierarchy then on an event to have this event calling another model Edit Click on Edit then the Parameter s frame to initialize each event appears Identify Click on Identify then put the mouse on the top of an event The user is able to type a description of the selected event 20 Delete Click on Delete then click on an event or a gate which would be deleted Clear Click on Clear will erase all the objects in the panel 21 Chapter 6 Design of a Markov chain model 6 1 Creation of the model After selecting a Markov chain model the user should design his her model by clicking on the panel with the right button of the mouse Right mouse button clicks generate popups 6 2 Methods Markov chain When the user clicks on an object a pop up appears on the screen We will explain for each object the methods available 6 2 1 Panel popup Figure 6 1 Pop up after clicking on the Markov model s panel Type Markov Chain
32. the panel and not on an object will cancel the action of drawing the arc Arcs between 2 places are not allowed 9 2 3 Transition Property action Used to enter modify the parameters Name Type of the selected transition Weight or Rate depending to the type of the transition Place dependent for the transition selected Click Validate after changes are made The dialog box can be exited by clicking on the button Dismiss Figure 9 4 Property of a transition Delete action When a transition is removed all the arcs which were connected to it will be removed also 35 How to move a transition The user should click first on the button Move from the buttonBar then move the transition by clicking on the transition then drag the mouse to the new location How to draw arcs Arcs are drawn by clicking left button of the mouse on a transition after selecting the button Arc from the buttonBar then dragging the mouse by releasing it over a transition which should be connected by the new arc The release of the button inside the panel and not on an object will cancel the action of drawing the arc Arcs between 2 transitions are not allowed Figure 9 5 Pop up after clicking on an arc 9 2 4 Arc Property action Figure 9 6 Property of an arc The window appears on the screen The user can modify the multiplicity value but also can see the place and transition connected by it Change T
33. u Click on the Project tab You can also change the owner s description and the commentary 2 To change the name a model from the current project 12 Click on the Model Editor menu and then on the Information menu Click on the Models tab You can visualize the links between all the models created in the current project A tree displays the hierarchy structure of all the models Figure 3 2 Project property Figure 3 4 Tree containing the structure of the current project 3 5 Open a project The user should click on File menu then Open menu to open a project 13 When the following dialog box appears choose a rg file and click OK The extension of the project files in the interface is always rgl 3 6 Close a project When the user closes a project this dialog appears asking to save before closing 14 Chapter 4 Model 4 1 Creation of a model When a new project is being created the interface requests a name for the first model that will be implemented To add a model click on the Model Editor menu and choose from the model types available The user can create using the Hierarchy feature a new model called by a model previously implemented 4 2 Modification of model properties Pull the Model Editor menu down and click on Information menu The Project and models information dialog box appears After clicking on Models on the tabset
34. y a frame contained the description of the current gate When the mouse enters another gate the frame displays the description of this gate The user should close the windows by clicking on Identify again or on the X top right of the frame 5 2 3 Event Parameters action A frame appears on the screen to help to define each event of the current fault tree See parameter creation Figure 5 3 Event s pop up Add Gate action The Add Gate pop up appears Choose the gate to be created and also the number of input events the new gate will have A description of the gate can be given at this time After clicking on the OK button the new gate is shown in the panel 19 Copy action The Copy button will copy the selected parameter of the current event and put it on the clipboard for a subsequent paste operation on another event Cut action The Cut button will delete the selected object from the panel and put it on the clipboard for a subsequent paste operation Paste action The Paste button will take the object s currently in the clipboard and paste it in the location of the selected event This event will be replaced by the object s that are in the clipboard Hierarchy action See Hierarchy called Identify action The Identify button will display a frame contained the description of the current event When the mouse enters another event the frame displays
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