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<ul>
[%for (s in Student.allInstances){%]
<li> [%=s.firstname] [%=s.lastname]
[%}%]
</ul>](https://image.slidesharecdn.com/models13-spreadsheets-131002125202-phpapp02/85/Adding-Spreadsheets-to-the-MDE-Toolbox-15-320.jpg)
Uploaded byDimitris Kolovos
Adding Spreadsheets to the MDE Toolbox
This document discusses adding support for spreadsheets in Model-Driven Engineering (MDE) tools and processes. Spreadsheets are commonly used for tasks like requirements capture, bug tracking, and monitoring, but have been largely ignored by MDE languages and tools. The work aims to allow spreadsheets to be used at any step of an MDE process by developing a driver for the Epsilon framework that allows spreadsheets to be queried, transformed, validated, compared, and merged just like other model types. It presents the concept mapping of spreadsheets to models, limitations of the initial approach, and a proposed native driver implementation to overcome limitations and leverage native spreadsheet querying capabilities.
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Adding Spreadsheets to the MDE Toolbox
- 1. 1 Adding Spreadsheets to theMDE Toolbox Martin Francis, D. Kolovos, N. Matragkas, R. Paige Department of Computer Science University of York
- 2. 2MDE • Aims toimprove the quality and efficiency of the software development process – Promotes models to first-class citizens – Reduces the need for human compilers • Not restricted to a particular modelling technology / model representation format Skip Ad>
- 3. 3Models in MDE •Structured artefacts that – Contain (meta-)information of interest related to the system under development – Are amenable to automated processing • Transformation • Validation • Simulation etc.
- 4. 4Artefacts of Interest EMF XMLXSD Spreadsheets Visio RDBMS
- 5. 5The MDE Community EMF XMLXSD Spreadsheets Visio RDBMS
- 6.
- 7. 7Spreadsheets • Versatile andintuitive • Fill in gaps in the software development process – When no specialised tools exist for the job – When specialised tools are too expensive/complicated – When information needs to be collected from non-programmers
- 8. 8Spreadsheets • Used for –Capturing requirements – Tracking bugs – Allocating roles – Monitoring tasks • ... but have been largely ignored by MDE languages and tools
- 9. 9Aim of thisWork • Add support for (Google) spreadsheets to languages for – Model querying – Model-to-model transformation – Model validation – Model-to-text transformation – Model comparison – Model merging • ... so that spreadsheets can be used in any step of an MDE process
- 10.
- 11. 11Concept Mapping • Spreadsheet-> Model • Worksheet -> Type • Column -> Property • Row -> Model element modules MSD,HCI F MSD,RQE E mt506 supervisor mt506 4 jd5023 SmithJane 22 jd501 232 ThompsonJoe D age C lastname B firstname A id1 Student Staff ED teaches C lastname B firstname A id1 Module Mark
- 12. 12Preview (Query) modules MSD,HCI F MSD,RQE E mt506 supervisor mt506 4 jd5023 SmithJane22 jd501 232 ThompsonJoe D age C lastname B firstname A id1 Student Staff E dj5123 JacksonDaniel HCI mt506 MSD,RQE2 ThomasMatthew D teaches C lastname B firstname A id1 Student Staff Module Module Student Staff Module Human Computer Interaction Spring4 HCI D RQE3 SpringRequirements Engineering MSD2 AutumnModelling and System Design C term B title A id1 Mark Mark Mark Student.allInstances-> select(s | s.age >= 18).println();
- 13. 13Preview (Query) modules MSD,HCI F MSD,RQE E mt506 supervisor mt506 4 jd5023 SmithJane22 jd501 232 ThompsonJoe D age C lastname B firstname A id1 Student Staff E dj5123 JacksonDaniel HCI mt506 MSD,RQE2 ThomasMatthew D teaches C lastname B firstname A id1 Student Staff Module Module Student Staff Module Human Computer Interaction Spring4 HCI D RQE3 SpringRequirements Engineering MSD2 AutumnModelling and System Design C term B title A id1 Mark Mark Mark Student.all. select(s | s.age >= 18).println();
- 14. 14Preview (Query) modules MSD,HCI F MSD,RQE E mt506 supervisor mt506 4 jd5023 SmithJane22 jd501 232 ThompsonJoe D age C lastname B firstname A id1 Student Staff E dj5123 JacksonDaniel HCI mt506 MSD,RQE2 ThomasMatthew D teaches C lastname B firstname A id1 Student Staff Module Module Student Staff Module Human Computer Interaction Spring4 HCI D RQE3 SpringRequirements Engineering MSD2 AutumnModelling and System Design C term B title A id1 Mark Mark Mark for (s in Student.all) { if (s.age >= 18) { s.println(); } }
- 15. 15Preview (M2T) modules MSD,HCI F MSD,RQE E mt506 supervisor mt506 4 jd5023 SmithJane22 jd501 232 ThompsonJoe D age C lastname B firstname A id1 Student Staff E dj5123 JacksonDaniel HCI mt506 MSD,RQE2 ThomasMatthew D teaches C lastname B firstname A id1 Student Staff Module Module Student Staff Module Human Computer Interaction Spring4 HCI D RQE3 SpringRequirements Engineering MSD2 AutumnModelling and System Design C term B title A id1 Mark Mark Mark <ul> [%for (s in Student.allInstances){%] <li> [%=s.firstname] [%=s.lastname] [%}%] </ul>
- 16. 16Preview (Validation) context Mark{ constraint WithinRange { check: self.mark <= 100 and self.mark >= 0 message: “Mark ” + self.mark + “ must be between 0-100” } } Student Staff Module Human Computer Interaction Spring4 HCI D RQE3 SpringRequirements Engineering MSD2 AutumnModelling and System Design C term B title A id1 Mark E jd5023 74ICAR jd5012 62TPOP DC mark B module A student1 Student Staff Module Mark
- 17. 17Concept Mapping • Spreadsheet-> Model • Worksheet -> Type • Column -> Property • Row -> Model element modules MSD,HCI F MSD,RQE E mt506 supervisor mt506 4 jd5023 SmithJane 22 jd501 232 ThompsonJoe D age C lastname B firstname A id1 Student Staff ED teaches C lastname B firstname A id1 Module Mark
- 18. 18Limitations • No wayto specify – Column data types – Cross-references between columns – Multiplicities modules MSD,HCI F MSD,RQE E mt506 supervisor mt506 4 jd5023 SmithJane 22 jd501 232 ThompsonJoe D age C lastname B firstname A id1 Student Staff E mt506 MSD,RQE2 ThomasMatthew D teaches C lastname B firstname A id1 Module Mark
- 19. 19Limitations • No wayto work with – Title-less columns – Worksheets with bizarre names (“Tom’s Data”) modules MSD,HCI F MSD,RQE E mt506 supervisor mt506 4 jd5023 SmithJane 22 jd501 232 ThompsonJoe D age C lastname B firstname A id1 Student Staff E dj5123 JacksonDaniel HCI mt506 MSD,RQE2 ThomasMatthew D teaches C lastname B firstname A id1 Student Staff Module Module Student Staff Module Human Computer Interaction Spring4 HCI D RQE3 SpringRequirements Engineering MSD2 AutumnModelling and System Design C term B title A id1 Mark Mark Mark E jd5023 74ICAR jd5012 62TPOP DC mark B module A student1 Student Staff Module Mark
- 20. 20Configuration Metamodel Spreadsheet Worksheet name :String alias : String Column index : Integer name : String alias : String dataType : String many : boolean delimiter : String Reference name : String many : boolean cascadeUpdates : boolean source target columns worksheets
- 21. 21Data Types <spreadsheet> <worksheet name=“Student”> <columnname=“age” type=“Integer”/> </worksheet> </spreadsheet> modules MSD,HCI F MSD,RQE E mt506 supervisor mt506 4 jd5023 SmithJane 22 jd501 232 ThompsonJoe D age C lastname B firstname A id1 Student Staff E mt506 MSD,RQE2 ThomasMatthew D teaches C lastname B firstname A id1 Module Mark
- 22. 22Data Types Student.allInstances-> select(s |s.age >= 18) modules MSD,HCI F MSD,RQE E mt506 supervisor mt506 4 jd5023 SmithJane 22 jd501 232 ThompsonJoe D age C lastname B firstname A id1 Student Staff E mt506 MSD,RQE2 ThomasMatthew D teaches C lastname B firstname A id1 Module Mark
- 23. 23References <spreadsheet> <reference source=“Mark->module” target=“Module->id” many=“false”/> </spreadsheet> modules MSD,HCI F MSD,RQE E mt506 supervisor mt506 4 jd5023 SmithJane22 jd501 232 ThompsonJoe D age C lastname B firstname A id1 Student Staff E dj5123 JacksonDaniel HCI mt506 MSD,RQE2 ThomasMatthew D teaches C lastname B firstname A id1 Student Staff Module Module Student Staff Module Human Computer Interaction Spring4 HCI D RQE3 SpringRequirements Engineering MSD2 AutumnModelling and System Design C term B title A id1 Mark Mark Mark E jd5023 74ICAR jd5012 62TPOP DC mark B module A student1 Student Staff Module Mark
- 24. 24References Mark.allInstances ->select(m | m.mark< 40) ->collect(m | m.module.title) ->asSet(); modules MSD,HCI F MSD,RQE E mt506 supervisor mt506 4 jd5023 SmithJane 22 jd501 232 ThompsonJoe D age C lastname B firstname A id1 Student Staff E dj5123 JacksonDaniel HCI mt506 MSD,RQE2 ThomasMatthew D teaches C lastname B firstname A id1 Student Staff Module Module Student Staff Module Human Computer Interaction Spring4 HCI D RQE3 SpringRequirements Engineering MSD2 AutumnModelling and System Design C term B title A id1 Mark Mark Mark E jd5023 74ICAR jd5012 62TPOP DC mark B module A student1 Student Staff Module Mark
- 25.
- 26.
- 27.
- 28. 29Problems • Injection oflarge spreadsheets can be slow • Propagating changes back to the spreadsheet can be challenging • Loss of native querying capabilities
- 29. 30Option #2 • Developa native spreadsheets driver for Epsilon’s pluggable type system (EMC) • Pros – No intermediate artefacts – No stale data – Direct updates to the spreadsheet – Can leverage native querying capabilities
- 30.
- 31. 32Query Translation • Exploitthe built-in querying capabilities of Google Spreadsheets • Example – Find all students who have a mark higher than 70 in some module modules MSD,HCI F MSD,RQE E mt506 supervisor mt506 4 jd5023 SmithJane 22 jd501 232 ThompsonJoe D age C lastname B firstname A id1 Student Staff E dj5123 JacksonDaniel HCI mt506 MSD,RQE2 ThomasMatthew D teaches C lastname B firstname A id1 Student Staff Module Module Student Staff Module Human Computer Interaction Spring4 HCI D RQE3 SpringRequirements Engineering MSD2 AutumnModelling and System Design C term B title A id1 Mark Mark Mark E jd5023 74ICAR jd5012 62TPOP DC mark B module A student1 Student Staff Module Mark
- 32. 33Using select() Mark.allInstances ->select(m |m.mark > 70); modules MSD,HCI F MSD,RQE E mt506 supervisor mt506 4 jd5023 SmithJane 22 jd501 232 ThompsonJoe D age C lastname B firstname A id1 Student Staff E dj5123 JacksonDaniel HCI mt506 MSD,RQE2 ThomasMatthew D teaches C lastname B firstname A id1 Student Staff Module Module Student Staff Module Human Computer Interaction Spring4 HCI D RQE3 SpringRequirements Engineering MSD2 AutumnModelling and System Design C term B title A id1 Mark Mark Mark E jd5023 74ICAR jd5012 62TPOP DC mark B module A student1 Student Staff Module Mark
- 33. 34Using find() S.find(m:Mark |m.mark > 70); modules MSD,HCI F MSD,RQE E mt506 supervisor mt506 4 jd5023 SmithJane 22 jd501 232 ThompsonJoe D age C lastname B firstname A id1 Student Staff E dj5123 JacksonDaniel HCI mt506 MSD,RQE2 ThomasMatthew D teaches C lastname B firstname A id1 Student Staff Module Module Student Staff Module Human Computer Interaction Spring4 HCI D RQE3 SpringRequirements Engineering MSD2 AutumnModelling and System Design C term B title A id1 Mark Mark Mark E jd5023 74ICAR jd5012 62TPOP DC mark B module A student1 Student Staff Module Mark
- 34. 35Query Translation • Theimplementation of find() can be overloaded by each driver • The Google Spreadsheets driver rewrites the query at runtime as – https://spreadsheets.google.com/feeds/list/tb- <mark-worksheet- guid>/od6/private/full?sq=mark>70 • Search is performed on the server and a Set(Mark)is returned – Composite queries are supported
- 35.
- 36. 37Moving to EMF Mark.allInstances ->select(m| m.mark < 40) ->collect(m | m.module.title) ->asSet(); modules MSD,HCI F MSD,RQE E mt506 supervisor mt506 4 jd5023 SmithJane 22 jd501 232 ThompsonJoe D age C lastname B firstname A id1 Student Staff E dj5123 JacksonDaniel HCI mt506 MSD,RQE2 ThomasMatthew D teaches C lastname B firstname A id1 Student Staff Module Module Student Staff Module Human Computer Interaction Spring4 HCI D RQE3 SpringRequirements Engineering MSD2 AutumnModelling and System Design C term B title A id1 Mark Mark Mark E jd5023 74ICAR jd5012 62TPOP DC mark B module A student1 Student Staff Module Mark
- 37. 38Moving to EMF Mark.allInstances ->select(m| m.mark < 40) ->collect(m | m.module.title) ->asSet();
- 38.
- 39. 40Take-home Message • Weneed to reach out to mainstream developers and embrace the types of models they are using – or risk becoming irrelevant