Finding Key Stakeholders in Large Software Projects Using Social Network Analysis and Genetic Algorithms
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This document presents a method for identifying key stakeholders in large-scale software projects. It involves building a social network of stakeholders through recommendations and then eliciting requirements from stakeholders. Stakeholder influence is determined using social network measures and ratings of requirement importance. A genetic algorithm is used to search for weights that can better determine real stakeholder influence compared to existing measures alone. The method was evaluated on a real-world dataset and was able to prioritize stakeholders and requirements more accurately than social network measures.
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Finding Key Stakeholders in Large Software Projects Using Social Network Analysis and Genetic Algorithms
- 1. Searching for Key Stakeholders in Large-Scale Software Projects Soo Ling Lim University College London 13th CREST Open Workshop 12 May 2011
- 7. What makes developers cry? can't communicate with stakeholders can't maintain 541 developers stakeholders can't find stakeholders stakeholders lack skill stakeholders lack commitment I. Alexander & S. Robertson (2004) Understanding Project Sociology by Modeling Stakeholders. IEEE SoCware.
- 8. Identify Prioritise
- 10. Step 1: Find initial stakeholders Users Developers Legislators Decision-makers
- 11. Step 2: Get recommendations
- 12. Step 2: Get recommendations <Alice, Director of Estates, 4>
- 13. Step 3: Build social network
- 14. Step 3: Build social network Alice
- 15. Step 3: Build social network Bob Carl Alice
- 16. Step 3: Build social network Bob Carl Alice
- 17. Step 4: Elicit requirements Bob Carl Alice
- 18. Step 5: Prioritise requirements n ImportanceR = ∑ ProjectInfluenceS × RatingS S=1
- 19. Step 5: Prioritise requirements n ImportanceR = ∑ ProjectInfluenceS × RatingS S=1 Use social network measures, e.g., • Betweenness centrality • PageRank • Out‐degree centrality • In‐degree centrality S.L. Lim & A. Finkelstein (2011) StakeRare: Social Networks and CollaboraLve Filtering for Large‐Scale Requirements ElicitaLon. IEEE TransacLons on SoCware Engineering (TSE).
- 20. Step 5: Prioritise requirements 0.81 0.70 0.58 0.56 0.49 0.48 S.L. Lim & A. Finkelstein (2011) StakeRare: Social Networks and CollaboraLve Filtering for Large‐Scale Requirements ElicitaLon. IEEE TransacLons on SoCware Engineering (TSE).
- 21. Step 5: Prioritise requirements 0.81 n ImportanceR = ∑ ProjectInfluenceS × RatingS 0.70 S=1 0.58 0.56 € 0.49 0.48 S.L. Lim & A. Finkelstein (2011) StakeRare: Social Networks and CollaboraLve Filtering for Large‐Scale Requirements ElicitaLon. IEEE TransacLons on SoCware Engineering (TSE).
- 22. Use a genetic algorithm to search for real influence GA to search for weights S.L. Lim, M. Harman & A. Susi. Searching for Key Stakeholders in Large‐Scale SoCware Projects (submiVed).
- 23. Step 5: Prioritise requirements n ImportanceR = ∑ ProjectInfluenceS × RatingS S=1
- 24. Step 5: Prioritise requirements n ImportanceR = ∑ ProjectInfluenceS × RatingS S=1 Actual importance (Based on post project knowledge)
- 25. Step 5: Prioritise requirements n ImportanceR = ∑ ProjectInfluenceS × RatingS S=1 Actual importance (Based on post project knowledge)
- 26. RALIC: UCL Access Control Project
- 28. Ratings
- 29. Data Set • ~150 requirements • 68 stakeholders recommended other stakeholders • 76 stakeholders provided ratings • actual ranked list of requirements based on post project knowledge
- 30. Findings • Existing social network measures can be used to prioritise stakeholders….but they are not optimal and may miss out key stakeholders (GA can always improve them). • Evolution corrected assumptions made by the measures that don’t hold for the stakeholder.
- 31. Findings • The GA found many good solutions – A good set of requirements can be constructed from many different subsets of stakeholders • Some stakeholders hold unique knowledge (always selected by the GA), but the majority of stakeholders share similar knowledge (replaceable) • The concept of who is a “key stakeholder” depends on which other stakeholders have already been identified.
Notas do Editor
- 22
- What is the relationship