iStarJSON: A Lightweight Data-Format for i* Models
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Istarjson is a lightweight data format developed for i* models within the context of open source software ecosystems quality analysis. The document outlines the motivation, structure, and functionality of istarjson, including its REST web services for converting, validating, and generating graphs from i* models. Future work involves releasing istarjson as an open-source project and expanding its services.
iStarJSON: A Lightweight Data-Format for i* Models
- 1. iStarJSON: A Lightweight Data-Format for i* Models Oscar Franco-Bedoya ohernan@essi.upc.edu David Ameller dameller@essi.upc.edu Dolors Costal dolors@essi.upc.edu Lidia López llopez@essi.upc.edu
- 2. 2 Agenda Motivation iStarJSON Language iStarJSON Services IStarJSON PoC Conclusions & Future Work 1 2 3 4 5 iStarJSON:ALightweightData-Formatfori*Models
- 3. 3 iStarJSON:ALightweightData-Formatfori*Models iStarJSON has been carried out in the context of a general framework for Open Source Software ECOsystems (OSSECOs) quality analysis and modelling process. i* is used to represent OSSECOs, and the framework uses model analysis for OSSECO quality analysis (e.g., identifying main goals, members relationships, strategic dependencies) Motivation
- 4. 4 iStarJSON:ALightweightData-Formatfori*Models Source: Programmable Web Site Over more than 16.000 APIs JSON trend is growing 2005 2007 2009 2011 2013 80% 70% 60% 50% 40% 30% 20% 10% API Data Exchange: XML vs. JSON XML JSON
- 6. 6 iStarJSON:ALightweightData-Formatfori*Models Source: iStar Wiki G = (V;E) V = {actor; agent; role; position}U {goal; task; resource; softgoal; belief } An iStar model is a directed graph Atype = {association;dependency;means_end;decomposition;contribution} Dependencies are represented by three nodes (depender, dependee and dependum) and two links, one from the depender to the dependum and other from the dependum to the dependee.
- 7. 7 iStarJSON:ALightweightData-Formatfori*Models iStarJSON from iStarML hierarchical structure to iStarJSON graph structure Graph structure does not affect to the i* syntax or semantics Graph structure allow using existing tools and algorithms for graph manipulation (e.g., graph layouts, node centrality, shortest path)
- 12. 12 iStarJSON:ALightweightData-Formatfori*Models iStarJSON project in Github https://github.com/UPC-gessi-oscar-franco/iStarJson
- 14. 14 iStarJSON:ALightweightData-Formatfori*Models iStarJSON REST Web Services iStarML to iStarJSON converter iStarJSON Validator iStarJSON Graph Generator 1 2 3
- 16. 16 iStarJSON:ALightweightData-Formatfori*Models iStarML to iStarJSON Converter curl -v -H "Content-Type: application/xml" -X POST --data @Test2.istarml http://localhost:8080/iStarJSONServiceREST/istar/istarToJSON >Test2.istarjson
- 17. 17 iStarJSON:ALightweightData-Formatfori*Models iStarJSON Validator curl -v -H "Content-Type: application/xml" -X POST --data @Test2.json http://localhost:8080/iStarJSONServiceREST/istar/istarJSONvalidator > valid.txt curl -v -H "Content-Type: application/xml" -X POST --data @Test2Bad.json http://localhost:8080/iStarJSONServiceREST/istar/istarJSONvalidator > invalid.txt
- 18. 18 iStarJSON:ALightweightData-Formatfori*Models iStarJSON Graph Generator curl -v -H "Content-Type: application/xml" -X POST --data @Test2.json "http://localhost:8080/iStarJSONServiceREST/istar/istarJSONconverter/param?lay aout=dot&type=pdf" >grap.pdf
- 19. 19 iStarJSON:ALightweightData-Formatfori*Models Graph Visualization Generated from an iStarML file Just in case…
- 20. 20 iStarJSON on the cloud (AZURE) • Converter curl -v -H "Content-Type: application/xml" -X POST --data @Test2.istarml http://testoneosseco.azurewebsites.net/iStarJSONServiceREST /istar/istarToJSON • Validator curl -v -H "Content-Type: application/xml" -X POST --data @Test2.json http://testoneosseco.azurewebsites.net/iStarJSONServiceREST /istar/istarJSONvalidator • Graph Generator: Coming soon! iStarJSON:ALightweightData-Formatfori*Models
- 21. 21 CONCLUSIONS & FUTURE WORK iStarJSON:ALightweightData-Formatfori*Models
- 22. 22 iStarJSON:ALightweightData-Formatfori*Models Conclusions Definition of JSON language 1 2 3 Release iStarJSON as OSS project Provision of 3 REST Web Services iStarML to iStarJSON converter iStarJSON Validator iStarJSON Graph Generator https://github.com/UPC-gessi-oscar-franco/iStarJson
- 23. 23 iStarJSON:ALightweightData-Formatfori*Models i* Model Analysis Social Network Analysis Software Ecosystems 1 2 3 Future work Adding more services for…