YAWL Engine User Manual
Contents
1. required help YAIWL is distributed under the YAWIL licence Fig 8 Request for Data using a Form YAWL Engine User Manual Beta 7 YAWL_Engine_User_Man_v1 7 doc 8 Providing Data for the Case Using XML It is also always possible to enter data using XML This method of user input is useful if data input using a form has failed for any reason Fig 9 is the XML input page To get to this page click the link for the work item ID on the Checked Out Work Items page Fig 12 instead of selecting the radio button for a Work Item and clicking the Edit Work Item button Work Item Edit Page iD 1 1 register Task Name register Enablement Time Sep 06 19 38 24 Check Out Time Sep 06 20 15 19 Work Item Input Work Item Output lt data gt lt customer gt Type name of customer lt customer gt lt data gt lt data gt lt Data Type Is Mandatory t payment account _number gt lt payment account number lt Data Type xsistring Is Mandatory true gt customer gt lt customer gt lt Data Type Is Mandatory slegs gt lt legs gt lt data gt Fig 9 Request for Data using XML YAWL Engine User Manual Beta 7 YAWL_Engine_User_Man_v1 7 doc 9 How to Input the Data Using XML The structure of the request for data follows the XML format of opening and closing tags The data is entered between the open and close tags that refer to that data element In the makeTrip3 xml2. a k a hsql lLdb u Lie vex Copyright c 2001 2004 The HSQL Development Group All rights reserved Redistribution and use in source and binary forms with or without modification are permitted provided that the following Ba conditions are met Redistributions of source code must retain the above copyright notice this list of conditions and the following disclaimer Redistributions in binary form must reproduce the above copyright notice this list of conditions and the following disclaimer in the documentation and or other materials provided with the distribution Neither the name of the HSQL Development Group nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY EXPRESS OR IMPLIED WARRANTIES INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED IN NO EVENT SHALL HSQL DEVELOPMENT GROUP HSQLDB ORG OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT INDIRECT INCIDENTAL SPECIAL EXEMPLARY OR CONSEQUENTIAL DAMAGES INCLUDING BUT NOT LIMITED TO PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES LOSS OF USE DATA OR PROFITS OR BUSINESS INTERRUPTION HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY WHETHER IN CONTRACT STRICT LIABILITY OR TORT INCLUDING NEGLIGEN
3. list of conditions and the following disclaimer Redistributions in binary form must reproduce the above copyright notice this list of conditions and the following disclaimer in the YAWL Engine User Manual Beta 7 YAWL_Engine_User_Man_v1 7 doc 18 documentation and or other materials provided with the distribution Neither the name of the Hypersonic SQL Group nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY EXPRESS OR IMPLIED WARRANTIES INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED IN NO EVENT SHALL THE HYPERSONIC SQL GROUP OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT INDIRECT INCIDENTAL SPECIAL EXEMPLARY OR CONSEQUENTIAL DAMAGES INCLUDING BUT NOT LIMITED TO PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES LOSS OF USE DATA OR PROFITS OR BUSINESS INTERRUPTION HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY WHETHER IN CONTRACT STRICT LIABILITY OR TORT INCLUDING NEGLIGENCE OR OTHERWISE ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE This software consists of voluntary contributions made by many individuals on behalf of the Hypersonic SQL Group For work added by the HSQL Development Group
4. be generated for schemas that contain enumerated types YAWL Engine User Manual Beta 7 YAWL_Engine_User_Man_v1 7 doc 16 Troubleshooting Error in Uploading a Specification When uploading a specification the YAWL Engine performs three different sets of validation for the specification Please check that your specification passes the following three validations e Schema Validation e XML Validation e YAWL Engine Application Validation This validation is particular to the YAWL application and can represent inconsistencies in the workflow for example if a task is defined in the specification but doesn t appear between the input and output condition Specification with an identical id This error occurs when you are uploading a specification that has already been uploaded into the engine If you have made changes to the specification and want to upload a newer version then Unload the existing specification before uploading the newer version YAWL Engine User Manual Beta 7 YAWL_Engine_User_Man_v1 7 doc 17 Third Party Software Acknowledgements a Software developed by the JOOM Project http www jdom org JDOM Beta 9 Copyright 2000 2003 Jason Hunter amp Brett McLaughlin All rights reserved This software is subject to the terms of the licence available at http www jdom org b Software developed by the Apache Software Foundation http www apache org Xerces2 Java Parser 2 6 0 Release
5. http xml apache org xerces2 j index html Copyright 1999 2003 The Apache Software Foundation All rights reserved This software is subject to the terms of the licence available at http xml apache org Web Services Invocation Framework 2 0 Release http ws apache org wsif Copyright 1999 2003 The Apache Software Foundation All rights reserved This software is subject to the terms of the licence available at http xml apache org c The Saxon version 7 XLST Processor from Michael Kay http saxon sourceforge net This software is subject to the Mozilla Public License Version 1 0 and may not be used except in compliance with that License a copy is available at http www mozilla org MPL The source code version of this software is available under the terms of that License d Chiba XForms processor version 0 9 9 available at http sourceforge net projects chiba e Hypersonic SOL Hypersonic SQL is distributed under the following licence COPYRIGHTS AND LICENSES ORIGINAL LICENSE a k a hypersonic_lic txt For content code and products originally developed by Thomas Mueller and the Hypersonic SQL Group Copyright c 1995 2000 by the Hypersonic SQL Group All rights reserved Redistribution and use in source and binary forms with or without modification are permitted provided that the following conditions are met Redistributions of source code must retain the above copyright notice this
6. of America No party to this Agreement will bring a legal action under this Agreement more than one year after the cause of action arose Each party waives its rights to a jury trial in any resulting litigation Acknowledgements This documentation includes feedback from Lachlan Aldred and Marlon Dumas Queensland University of Technology YAWL Engine User Manual Beta 7 YAWL_Engine_User_Man_v1 7 doc 22
7. requires any other Contributor to pay any damages as a result the Commercial Contributor must pay those damages 5 NO WARRANTY EXCEPT AS EXPRESSLY SET FORTH IN THIS AGREEMENT THE PROGRAM IS PROVIDED ON AN AS IS BASIS WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND EITHER EXPRESS OR IMPLIED INCLUDING WITHOUT LIMITATION ANY WARRANTIES OR CONDITIONS OF TITLE NON INFRINGEMENT MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE Each Recipient is solely responsible for determining the appropriateness of using and distributing the Program and assumes all risks associated with its exercise of rights under this Agreement including but not limited to the risks and costs of program errors compliance with applicable laws damage to or loss of data programs or equipment and unavailability or interruption of operations 6 DISCLAIMER OF LIABILITY EXCEPT AS EXPRESSLY SET FORTH IN THIS AGREEMENT NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY DIRECT INDIRECT INCIDENTAL SPECIAL EXEMPLARY OR CONSEQUENTIAL DAMAGES INCLUDING WITHOUT LIMITATION LOST PROFITS HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY WHETHER IN CONTRACT STRICT LIABILITY OR TORT INCLUDING NEGLIGENCE OR OTHERWISE ARISING IN ANY WAY OUT OF THE USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED HEREUNDER EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES 7 GENERAL If any provision of this Agreement is invalid or unenforceable und
8. specification the example below Fig 10 depicts a request to enter the name of the customer going on a trip for the customer data element 1 Firstly the data tag is opened 2 Then the Data Type tag or comments tag is opened to let the user know the details of the data required 3 The Data Type tag is requesting a string variable from the user and the information required is Mandatory The tag is closed 4 Then the customer tag is opened referring to the data element to store the information 5 The user then enters the customer name within the customer tags 6 Finally the data tag is closed The Data Type tag e Open e Data Type e Mandatory e Close data gt gt The data tags lt l Data Iype xs string Is Mandatory CLuce lt customer gt Mr John Smith lt customer gt lt data gt My data Fig 10 Inputting the Data YAWL Engine User Manual Beta 7 YAWL_Engine_User_Man_v1 7 doc 10 Work Items Viewing Available Work Alternate user accesses to the YAWL Engine can be created through the Administrator To create a new user access 1 Navigate to the Available Work page http Alocalhost 8080 worklist availableWork a 2 All available work items will be listed according to the specification loaded Work items can be related back to a specific instance of a case through their case number Fig 11 Faculty of A university for the real world Information Technology Centre for informati
9. AWL Engine and start testing your favourite workflows you will need to make sure that the Tomcat web service has been started YAWL is a browser based web application that requires a server jsp environment such as Apache Tomcat For full instructions on starting the Tomcat service or obtaining the Apache Tomcat software please consult the YAWL Installation Manual Launching the YAWL Engine 1 Open up your web browser 2 Type the following address into the address line and press enter see Fig 2 http localhost 8080 worklistz Log In Microsoft Internet Explorer File Edit View Favorites Tools Help x a P o Search SIP Favorites GAP media 4 A es Fig 2 Navigate to the YAWL Log In webpage 3 The YAWL Log In screen will be displayed 4 Log in with the following details case sensitive UserID admin Password YAWL YAWL Engine User Manual Beta 7 YAWL_Engine_User_Man_v1 7 doc 3 The YAWL Workspace Key YAWL Pages Log In Microsoft Int rnet Explorer File Edit View Favoriti Tools Help Fos T x E A Search SIP Favorites GA Media 4 B Pr S Address 2 http localhost 4080 worklist aur Faculty of A university for the real world Information Technology Centre for Information Technolagy Innovation Q The Power of Expressiveness one Workfl YOwL Home Administrate ae Available Work Checked Gut Work Logout Specifications UserID admin Login Successful Thankyou ad
10. Beta 7 YAWL_Engine_User_Man_v1 7 doc 11 Welcome to YAWL What is YAWL Based on a rigorous analysis of existing workflow management systems and workflow languages we have developed a new workflow language YAWL Yet Another Workflow Language To identify the differences between the various languages we have collected a fairly complete set of workflow patterns Based on these patterns we have evaluated several workflow products and detected considerable differences in expressive power Languages based on Petri nets perform better when it comes to state based workflow patterns However some patterns e g involving multiple instances complex synchronizations or non local withdrawals are not easy to map onto high level Petri nets This inspired us to develop a new language by taking Petri nets as a starting point and adding mechanisms to allow for a more direct and intuitive support of the workflow patterns identified YAWL can be considered a very powerful workflow language built upon experiences with languages supported by contemporary workflow management systems While not a commercial language itself 1t encompasses these languages and in addition has a formal semantics Such an approach is in contrast with e g WIfMC s XPDL which takes commonalities between various languages as a starting point and does not have formal semantics Its design hopefully allows YAWL to be used for the purposes of the study of expressiveness and inter
11. CE OR OTHERWISE ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE YAWL Engine User Manual Beta 7 YAWL_Engine_User_Man_v1 7 doc 19 XSD and EME source available at http www eclipse org xsd XSD and EME are made available under the Common Public License Common Public License Version 1 0 THE ACCOMPANYING PROGRAM IS PROVIDED UNDER THE TERMS OF THIS COMMON PUBLIC LICENSE AGREEMENT ANY USE REPRODUCTION OR DISTRIBUTION OF THE PROGRAM CONSTITUTES RECIPIENT S ACCEPTANCE OF THIS AGREEMENT 1 DEFINITIONS Contribution means a in the case of the initial Contributor the initial code and documentation distributed under this Agreement and b in the case of each subsequent Contributor i changes to the Program and ii additions to the Program where such changes and or additions to the Program originate from and are distributed by that particular Contributor A Contribution originates from a Contributor if it was added to the Program by such Contributor itself or anyone acting on such Contributor s behalf Contributions do not include additions to the Program which 1 are separate modules of software distributed in conjunction with the Program under their own license agreement and ii are not derivative works of the Program Contributor means any person or entity that distributes the Program Licensed Patents mean patent claims licensable by a Contri
12. O false Want Flight O true O false Want Hotel Otrue O false required help Fig 13 Work Item Edit Page Using a Form ri Workfl YAWL Home Administrate an ae Available Work Checked Out Work Logout Specifications UserID admin Work Item Edit Page iD 1 2 1 register_itinerary_segment Task Name Enablement Time Sep 06 21 11 18 Check Out Time Sep 06 21 23 29 Work Item Input Work Item Output lt data gt Is Mandatory true gt lt destination gt sydney lt destination gt start _date gt Z9 10 2004 lt start_date gt lt customer gt Mr Joe Smith lt customer gt lt Data Type xs dateTime lt departure location gt brisbane lt departure location gt Is Mandatory true gt lt data gt send date gt 31 12 2004 lt end_ date gt lt Data Type xs boolean Is Mandatory false gt want _car true lt want car gt lt Data Type xs boolean Is Mandatory false gt swant_flight gt false lt want_flight gt lt Data Type xs boolean Is Mandatory false gt lt want_hotel gt truek want_hotel gt lt data gt Save Work Item Submit Work Item Add New Instance Fig 14 Work Item Edit Page Using XML YAWL Engine User Manual Beta 7 YAWL_Engine_User_Man_v1 7 doc Submitting a Work Item Once a work item has been completed it must be submitted for the token to be advanced in the workflow l Navigate to the Checked Out Work page http localhost 8080 worklist c
13. YAWL Engine User Manual Beta 7 Release QUT Faculty of Information Technology YAWL Engine User Manual Beta 7 YAWL_Engine_User_Man_v1 7 doc Document Control 25 Aug 2004 Sean Kneipp Initial Draft 30 Aug 2004 Sean Kneipp Final Draft 4 Feb 2005 Guy Redding Added YAWL XForms details 4 Feb 2005 Lachlan Aldred Updated Issues amp 3 Party Software Acknowledgements section 22 12 2005 Michael Adams Updated for Beta 7 Version Document version brought in line with Release Version YAWL Engine User Manual Beta 7 YAWL_Engine_User_Man_v1 7 doc 1l Contents POC UIC NG Conn lla cires af cede cistectssoyactceicaactias a ES 1i Welcome CO TAWN Gessie orie a a E l What is AW ica ce micas stu ninn e NE aes aenind ents eie uses l Obtaining the Latest Version of the YAWL Engine cccceeeeeeseeeeeeeeeees l TEANG OC Cpa cot eect acca uaa ass reese opiate eee reaese tas ent anes 2 AWE ACIEUNA eet tert 2 Getun Stied oerna aa aa a 3 ONIN E Wace E E eee eee eee 3 Launching the YAWLGED ING cuisines rE ER nA 3 TEYA Wiles Workspace sennesso stn nesmctr ia hahet aad edemceriabaeeienaees 4 Key YA WLG Pages ernusacsiaria a e E E 4 YAWLGAdmMiNistratiO re a a ta aerate 5 Loadins a YAW LespeciiCallOn na E aelnaes 5 launches YA Wis SPCC Calon yoda acs ae etd eels a A 6 Unloading a YAWL Specification aia vsccasi tet cceepdarncaeensiion yn sacecacbargee nea eevee 7 Manasina USer ACCESS iiaia on caliondn nied ai ra
14. _v1 7 doc Unloading a YAWL Specification You can remove a YAWL specification so that it is no longer available to be started To remove a specification l Navigate to the Administrate page http localhost 8080 worklist admin z In the Manage Specifications area of the Content Pane choose the specification to remove Click on the Unload Specification button Managing User Access Alternate user accesses to the YAWL Engine can be created through the Administrator To create a new user access l Manage Users UserName Password Confirm Password Navigate to the Administrate page http localhost 8080 worklist admin a In the Manage Users section of the page enter the new user s Username and Password then retype the Password in the Confirm Password box Fig 7 To create the user under the Administrator role click the Create Button otherwise click the Create User button Username ie lle aiaiistel stale test admin YAWL Engine User Manual Beta 7 YAWL_Engine_User_Man_v1 7 doc false true Fig 7 Managing Users Data Elements of a Case Data Perspective Although the initial focus of YAWL was on control flow it has been extended to offer full support for the data perspective It is possible to define data elements and use them for conditional routing for the creation of multiple instances for exchanging information with the environment etc Most of the existing workflow ma
15. ation Technology Innovation O The Power of Expressiveness awe vY y Administrate eae specification AT admin Checked Out Work Items ID Task Description Enablement Time Start Time 1 2 1 register itinerary segment Sep 06 21 11 18 Sep 06 21 23 29 EditWorkltem Add New Instance Suspend Task Fig 12 Checked Out Work Items 3 Enter any required data using a form for the data elements that have been requested in the Work Item Output section of the page and click Save Work Item Fig 13 4 Alternatively click on the link for the Work Item ID to enter any required data for the requested data elements using XML Fig 14 YAWL Engine User Manual Beta 7 YAWL_Engine_User_Man_v1 7 doc 12 Chiba XForms Processor Microsoft Internet Explorer DER Fie Edit View Favorites Tools Help ay Back x E A P Search IE Favorites GP Media E 2 z wj b re Address a http localhost 8080 4WLXForms 0 1 xFormsServlet form forms makeTrip3register _itinerary_segment xhtml amp css styles yawl css amp xslt html4yawl xsl amp workItemID 5 2 1 regist Y Links Information Technology Centre for Information Technology Innovation A university for the real world 4 Faculty of r The Power of Expressiveness Specifications Register Itinerary Segment Customer Todd pk Destination sydney pk Departure Location brisbane pk Start Date pe End Date pk Want Car O true
16. butor which are necessarily infringed by the use or sale of its Contribution alone or when combined with the Program Program means the Contributions distributed in accordance with this Agreement Recipient means anyone who receives the Program under this Agreement including all Contributors 2 GRANT OF RIGHTS a Subject to the terms of this Agreement each Contributor hereby grants Recipient a non exclusive worldwide royalty free copyright license to reproduce prepare derivative works of publicly display publicly perform distribute and sublicense the Contribution of such Contributor if any and such derivative works in source code and object code form b Subject to the terms of this Agreement each Contributor hereby grants Recipient a non exclusive worldwide royalty free patent license under Licensed Patents to make use sell offer to sell import and otherwise transfer the Contribution of such Contributor if any in source code and object code form This patent license shall apply to the combination of the Contribution and the Program if at the time the Contribution is added by the Contributor such addition of the Contribution causes such combination to be covered by the Licensed Patents The patent license shall not apply to any other combinations which include the Contribution No hardware per se is licensed hereunder c Recipient understands that although each Contributor grants the licenses to its Contributions set fort
17. d YAWL Specification YAWL Engine User Manual Beta 7 YAWL_Engine_User_Man_v1 7 doc 5 Launching a YAWL Specification In order to kick off the workflow specification you need to launch a case To launch a YAWL specification that has already been uploaded into the YAWL Engine 1 Navigate to the Workflow Specifications page http localhost 8080 worklist viewSpecificationsz 2 Inthe Active YAWL Specifications section of the page choose the specification to launch 3 Click on the Launch Case button Fig 5 A university for the real world Centre for Information Technol gy Innovation O m The Power of Expressiveness Administrate UserID admin Active YAWL Specifications Specification ID Spec Name Documentation XML makeTrip3 xml null null View makeTrip3 xml Fig 5 Launching the Case 4 Then in the following Launch Case section of the page click on the Start Case button Fig 6 Depending on the specification loaded you may be required to launch the case with specific information for data elements For more information on providing data throughout the case consult the Data Elements of a Case section of this manual Launch Case Specification ID makeTrip3 xm start Case a Fig 6 Starting the Case 5 You will then see a confirmation screen to indicate that a case has been launched with a specific identification number YAWL Engine User Manual Beta 7 YAWL_Engine_User_Man
18. ect indirect special incidental and consequential damages such as lost profits iii states that any provisions which differ from this Agreement are offered by that Contributor alone and not by any other party and iv states that source code for the Program is available from such Contributor and informs licensees how to obtain it in a reasonable manner on or through a medium customarily used for software exchange YAWL Engine User Manual Beta 7 YAWL_Engine_User_Man_v1 7 doc 20 When the Program is made available in source code form a it must be made available under this Agreement and b a copy of this Agreement must be included with each copy of the Program Contributors may not remove or alter any copyright notices contained within the Program Each Contributor must identify itself as the originator of its Contribution if any in amanner that reasonably allows subsequent Recipients to identify the originator of the Contribution 4 COMMERCIAL DISTRIBUTION Commercial distributors of software may accept certain responsibilities with respect to end users business partners and the like While this license is intended to facilitate the commercial use of the Program the Contributor who includes the Program in a commercial product offering should do so in a manner which does not create potential liability for other Contributors Therefore if a Contributor includes the Program in a commercial product offering such Contributo
19. efl YAwWwL Home Administrate EREDA Syvailable Work Checked Out Work Logout Specifications UserID admin Instance Adder Page WorkItem Prototype 1 8 write Each instance has one param that is lt l Data Type si string relevant to only that instance Please fill in Is Mandatory false gt the parameter we provided zsong Rees song Create Instance Fig 15 Creating a New Instance of a Work Item Your new instance of the Work Item will be now be listed as Available Work Suspending a Work Item Work items that have been checked out to a person can be returned to the available work items All data that has been saved for that work item remains intact 5 Navigate to the Checked Out Work page http Alocalhost 8080 worklist checkedOutza 6 Click on the radar button next to the work item and click the button Suspend Task Fig 12 YAWL Engine User Manual Beta 7 YAWL_Engine_User_Man_v1 7 doc Known Issues Engine yawl war Web Service Invoker wsInvoker war The web service invoker does not support sending call back addresses to an asynchronous web service The web service invoker component is not able to invoke web services with complex data types as their parameters YAWL XForms Processor YAWLXForms war All fields seen on the forms are editable This means that input parameters on a form are editable Input parameters should not be editable Currently forms cannot
20. ent relating to the Program shall continue and survive Everyone is permitted to copy and distribute copies of this Agreement but in order to avoid inconsistency the Agreement is copyrighted and may only be modified in the following manner The Agreement Steward reserves the right to publish new YAWL Engine User Manual Beta 7 YAWL_Engine_User_Man_v1 7 doc 21 versions including revisions of this Agreement from time to time No one other than the Agreement Steward has the right to modify this Agreement IBM is the initial Agreement Steward IBM may assign the responsibility to serve as the Agreement Steward to a suitable separate entity Each new version of the Agreement will be given a distinguishing version number The Program including Contributions may always be distributed subject to the version of the Agreement under which it was received In addition after a new version of the Agreement is published Contributor may elect to distribute the Program including its Contributions under the new version Except as expressly stated in Sections 2 a and 2 b above Recipient receives no rights or licenses to the intellectual property of any Contributor under this Agreement whether expressly by implication estoppel or otherwise All rights in the Program not expressly granted under this Agreement are reserved This Agreement is governed by the laws of the State of New York and the intellectual property laws of the United States
21. er applicable law it shall not affect the validity or enforceability of the remainder of the terms of this Agreement and without further action by the parties hereto such provision shall be reformed to the minimum extent necessary to make such provision valid and enforceable If Recipient institutes patent litigation against a Contributor with respect to a patent applicable to software including a cross claim or counterclaim ina lawsuit then any patent licenses granted by that Contributor to such Recipient under this Agreement shall terminate as of the date such litigation is filed In addition if Recipient institutes patent litigation against any entity including a cross claim or counterclaim in a lawsuit alleging that the Program itself excluding combinations of the Program with other software or hardware infringes such Recipient s patent s then such Recipient s rights granted under Section 2 b shall terminate as of the date such litigation is filed All Recipient s rights under this Agreement shall terminate if it fails to comply with any of the material terms or conditions of this Agreement and does not cure such failure in a reasonable period of time after becoming aware of such noncompliance If all Recipient s rights under this Agreement terminate Recipient agrees to cease use and distribution of the Program as soon as reasonably practicable However Recipient s obligations under this Agreement and any licenses granted by Recipi
22. h herein no assurances are provided by any Contributor that the Program does not infringe the patent or other intellectual property rights of any other entity Each Contributor disclaims any liability to Recipient for claims brought by any other entity based on infringement of intellectual property rights or otherwise As a condition to exercising the rights and licenses granted hereunder each Recipient hereby assumes sole responsibility to secure any other intellectual property rights needed if any For example if a third party patent license is required to allow Recipient to distribute the Program it is Recipient s responsibility to acquire that license before distributing the Program d Each Contributor represents that to its knowledge it has sufficient copyright rights in its Contribution if any to grant the copyright license set forth in this Agreement 3 REQUIREMENTS A Contributor may choose to distribute the Program in object code form under its own license agreement provided that a it complies with the terms and conditions of this Agreement and b its license agreement i effectively disclaims on behalf of all Contributors all warranties and conditions express and implied including warranties or conditions of title and non infringement and implied warranties or conditions of merchantability and fitness for a particular purpose ii effectively excludes on behalf of all Contributors all liability for damages including dir
23. heckedOuta Click on the radar button next to the work item and click the button Edit Work Item Fig 12 Enter any required data for the data elements that have been requested in the Work Item Output section of the page Fig 13 14 Click on the Submit Work Item button Creating a New Instance of a Work Item If the specification supports it new instances of a work item can be created as an item is checked out reflecting multiple instance tasks in the workflow The current example specification makeTrip3 xml does not contain any multiple instance tasks so instructions below refer to the specification MakeMusic XML l Navigate to the Available Work page http localhost 8080 worklist availableWork Check Out a work item that supports multiple instance creation The MakeMusic XML specification contains a multiple instance task on the work item Write a Song Navigate to the Checked Out Work page http Alocalhost 8080 worklist checkedOutza Click on the radar button next to the work item and click the button Add New Instance Fig 12 Enter any required data for the data elements that have been requested and click on Create Instance Fig 15 YAWL Engine User Manual Beta 7 YAWL_Engine_User_Man_v1 7 doc 14 A wniversity for the real world Faculty of information Technology Centre for Information Technolagy Innovation ONAN C The Power of Expressiveness ane Work
24. honeas A adisaaielaneels 7 Data Elements ora CaSe tes aitece as enninsasiats acirsaniastonsantacncsh ities a 8 Data Persp Cy Cini k tee ceeia a sac E coal 8 Providing Data for the Case Using a FOrm ccccccccsseeeeeeeeeeceeeeeeeseeeeeeeeaaas 8 Providing Data for the Case Using XMLi ccccccccccsssseseceeeeceeeeeesseeceeeeeeaaas 9 How to Input the Data Using XMssnn nianteciahinesenteneiamisala 10 Work Teni S ore stencact a A E E E 11 View mle Available Wolk ecceran aa n a a T A 11 Checking Out Available W Ofkies scsses tviwntadadactesd n a Res 11 Saving Detailed Information for a Work Item enneessenennsssssssseerssssssssee 12 SUOMI EO a VY Ob NVC ii ace sass eatice acest a 14 Creating a New Instance of a Work Item cccccccsssesseeeeeeeeeeeeeeseeeeeees 14 SUSPENdING a Work WEI rss css caseccataceae avian teaea deca weaned veteacndimstaae 15 ITN Wet TSS E E E clot eanec ction detest T ts necaates 16 Ene me oy ae ss aeons oa renee eob eae uate nee nec ed eh eee ence eae eee 16 Worklist worklisSt WAaL hreossincanenu Error Bookmark not defined Web Service Invoker WSINVOKEL War anena e a a eO 16 YAWL XForms Processor YAWLXFOrmMS Warp essssserssceersrrrcesrrrercreeerses 16 Troubles hoon ne oae E T E O tre era ier ern 17 Third Party Software Acknowledgements cccccssseeseeeeeeeeeeeeeeeesseeeeeeeenaaas 18 FANG G8 00 14 ax 6 054510 11 0 Sc enoni a a a a eer 22 YAWL Engine User Manual
25. min YAWL is distributed under the YAWL licence Fig 3 YAWL Workspace Key YAWL Pages The separate pages of the browser based application representing the different functions of the YAWL Engine e YAWL Home e Administrate e Workflow Specifications e Available Work e Checked Out Work e Logout YAWL Engine User Manual Beta 7 YAWL_Engine_User_Man_v1 7 doc YAWL Administration Loading a YAWL specification In additional to a graphical syntax the YAWL language has an XML syntax The runtime environment requires this YAWL XML syntax To load a YAWL specification l Manage Specifications Load YAWL Specification Specification ID makeTrip3 xml Navigate to the Administrate page http localhost 8080 worklist admina In the Manage Specifications section of the page Browse fora YAWL specification xml file and choose Open The installation package for YAWL contains a number of sample YAWL specifications XML files The specification used throughout this document refers to the makeTrip3 XML file Click on Upload You should now see the details of your specification Fig 4 A university for the real world Centre for Information Technology Innovation Q The Power of Expressiveness Administrate T Available Work UserID admin Administrate YAWL Browse Spec Name Documentation AME null null View makeTrip3 xml Unload Specification Fig 4 Uploa
26. nagement systems use a propriety language for dealing with data YAWL is one of the few languages that completely relies on XML based standards like XPath and XQuery Providing Data for the Case Using a Form During certain activities of a YAWL Case you may be required to provide some information for data elements that have been established in the XML specification Requests for data can occur when Launching a Case or when editing Checked Out Work items Fig 8 depicts a request for data form for multiple data elements while performing an edit of a Checked Out Work item The red star next to a field indicates that input is required for that field The form submits data back to YAWL only when all data in the forms is valid Chiba XForms Processor Microsoft Internet Explorer File Edit view Favorites Tools Back 7 Help eP x a A pa Search PY Favorites A media g2 2 EEK ay m ha Address E http Hlocalhost 8080 AWL Forms 0 1 XFormsServlet Form forms makeTrip3register xhtml amp css styles yawl css amp xslt html4yawl xslaworkItemID 5 1 register amp sessionHandle 8 YW Links Faculty of Information Technology D The Power of Expressiveness Administrate Register Customer Q A university for the real world a Centre for Information Technolgy Innovation Type name of custome Payment Account Number Legs O true O false
27. on Technology Innovation The Power of Expressiveness aes Workfl YoawL Home Administrate E SEAE Available Work Checked Out Work Logout Specifications UserID admin Available Work Items if Task Description Status Enablement Time 1 2 register_itinerary_segqment Enabled Sep 06 21 11 18 1 cancel cancel Enabled Sep 06 21 11 18 2 register register Enabled Sep 06 21 16 00 Fig 11 Available Work Items Checking Out Available Work When a person is ready to start working on an available work item the item is Checked Out 1 Navigate to the Available Work page http Alocalhost 8080 worklist available Work 2 Click on the radar button next to the work item and click the button Check Out YAWL Engine User Manual Beta 7 YAWL_Engine_User_Man_v1 7 doc 11 Saving Detailed Information for a Work Item While a person is working on an item that has been Checked Out specific details may be required to be saved against that item Information saved against a work item can be used to launch other YAWL cases or provide data for other interfacing systems For more information on providing data in work items consult the Data Elements of a Case section of this manual 1 Navigate to the Checked Out Work page http localhost 8080 worklist checkedOutza 2 Click on the radar button next to the work item and click the button Edit Work Item Fig 12 A university for the real world Centre for Inform
28. operability issues At this stage YAWL supports the control flow perspective and the data perspective However it is important that relations with the resource perspective are investigated and formalized For YAWL to be more applicable in the area of web services and Enterprise Application Integration it is also desirable that support for communication patterns is built in Obtaining the Latest Version of the YAWL Engine As new versions of the YAWL Engine are released to the public they will be available for download at the YAWL website http www yawl system com Developers interested in obtaining the source code for the YAWL Engine can download the files from here http sourceforge net projects yawl YAWL Engine User Manual Beta 7 YAWL_Engine_User_Man_v1 7 doc 1 The YAWL Project For more information and progress on the YAWL project visit the YAWL Homepage on Queensland University of Technology s Centre for Information Technology Innovation website http www yawl system com YAWL Architecture The following image Fig 1 depicts the interaction between components of the YAWL Engine Apache Tomcat Web Service yawlWSiInvoker war TOE _ m F o 246 i a e e m a e Browser http localhost 8080 worklist Fig l The YAWL Engine Components YAWL Engine User Manual Beta 7 YAWL_Engine_User_Man_v1 7 doc 2 Getting Started Overview Before you jump straight into the Y
29. r Commercial Contributor hereby agrees to defend and indemnify every other Contributor Indemnified Contributor against any losses damages and costs collectively Losses arising from claims lawsuits and other legal actions brought by a third party against the Indemnified Contributor to the extent caused by the acts or omissions of such Commercial Contributor in connection with its distribution of the Program in a commercial product offering The obligations in this section do not apply to any claims or Losses relating to any actual or alleged intellectual property infringement In order to qualify an Indemnified Contributor must a promptly notify the Commercial Contributor in writing of such claim and b allow the Commercial Contributor to control and cooperate with the Commercial Contributor in the defense and any related settlement negotiations The Indemnified Contributor may participate in any such claim at its own expense For example a Contributor might include the Program in a commercial product offering Product X That Contributor is then a Commercial Contributor If that Commercial Contributor then makes performance claims or offers warranties related to Product X those performance claims and warranties are such Commercial Contributor s responsibility alone Under this section the Commercial Contributor would have to defend claims against the other Contributors related to those performance claims and warranties and if a court
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