istarjson: A Lightweight Data-Format for i* Models

Transcription

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 Agenda Motivation istarjson Language istarjson Services IStarJSON PoC Conclusions & Future Work 2

3 Motivation 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) 3

4 JSON trend is growing 80% API Data Exchange: XML vs. JSON 70% 60% 50% 40% 30% 20% 10% XML JSON Source: Programmable Web Site Over more than APIs 4

5 ISTARJSON LANGUAGE 5

6 An istar model is a directed graph Source: istar Wiki G = (V;E) V = {actor; agent; role; position}u {goal; task; resource; softgoal; belief } 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. 6

7 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) 7

8 istarjson (partial) Schema 8

9 istarjson (partial) Example 9

10 ISTARJSON OSS PROJECT 10

11 istarjson Project Architecture 11

12 istarjson project in Github 12

13 ISTARJSON PoC 13

14 istarjson REST Web Services istarml to istarjson converter istarjson Validator istarjson Graph Generator 14

15 i* Model for Testing 15

16 istarml to istarjson Converter curl -v -H "Content-Type: application/xml" -X POST >Test2.istarjson 16

17 istarjson Validator curl -v -H "Content-Type: application/xml" -X POST > valid.txt curl -v -H "Content-Type: application/xml" -X POST > invalid.txt 17

18 istarjson Graph Generator curl -v -H "Content-Type: application/xml" -X POST " aout=dot&type=pdf" >grap.pdf 18

19 Graph Visualization Generated from an istarml file Just in case 19

20 istarjson on the cloud (AZURE) Converter curl -v -H "Content-Type: application/xml" -X POST /istar/istartojson Validator curl -v -H "Content-Type: application/xml" -X POST /istar/istarjsonvalidator Graph Generator: Coming soon! 20

21 CONCLUSIONS & FUTURE WORK 21

22 Conclusions 1 2 Definition of JSON language Release istarjson as OSS project 3 Provision of 3 REST Web Services istarml to istarjson converter istarjson Validator istarjson Graph Generator 22

23 Future work Adding more services for i* Model Analysis Social Network Analysis Software Ecosystems 23

24 Thank you!? 24