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Using i* to Represent OSS
Ecosystems for Risk
Assessment
i* for Risk Assess. in OSS Ecosystems

Content
• Motivation
• Research Objectives

• Scientific Contributions
• Conclusion...
i* for Risk Assess. in OSS Ecosystems

MOTIVATIONS

3
i* for Risk Assess. in OSS Ecosystems

Motivation
• OSS Strategic asset
 Short-time to market
 Reduced development & mai...
i* for Risk Assess. in OSS Ecosystems

RISCOSS Project
Specification of risk identification, management
and mitigation met...
i* for Risk Assess. in OSS Ecosystems

RESEARCH OBJECTIVES

6
i* for Risk Assess. in OSS Ecosystems

Research Objectives
• COTS Adoption Processes: Well-defined
 Guidelines for risk a...
i* for Risk Assess. in OSS Ecosystems

One RISCOSS Main Objective
• O1: Support Risk Assessment for OSS adoption
using i* ...
i* for Risk Assess. in OSS Ecosystems

SCIENTIFIC CONTRIBUTIONS

9
i* for Risk Assess. in OSS Ecosystems

Scientific Contributions
• Ecosystem Patterns
• Levels of abstraction
• Guidelines ...
i* for Risk Assess. in OSS Ecosystems

Ecosystem Patterns
• Role: Producer, Consumer, Community
• Setting: Industrial, Aca...
i* for Risk Assess. in OSS Ecosystems

Level of Abstraction
• Different level of detail (class/instance)
 E.g. Instances ...
i* for Risk Assess. in OSS Ecosystems

XWiki.org SA Diagram

13
i* for Risk Assess. in OSS Ecosystems

XWiki.org SD Diagram

14
i* for Risk Assess. in OSS Ecosystems

XWiki.org SR Diagram

15
i* for Risk Assess. in OSS Ecosystems

Guidelines & Repository
• RiSD Adaptation
• Need to define
 General guidelines for...
i* for Risk Assess. in OSS Ecosystems

New Modelling Concepts
• Risk-related constructs
 Risk, event, …

• For dependenci...
i* for Risk Assess. in OSS Ecosystems

CONCLUSIONS & FUTURE WORK

18
i* for Risk Assess. in OSS Ecosystems

Conclusions
• RISCOSS objective: Support decision making
related to the risk assess...
i* for Risk Assess. in OSS Ecosystems

Ongoing & Future Work
• We …
 Modeled RISCOSS 5 use cases (i*)
 Are analyzing the...
Hope you
liked it!
i* for Risk Assess. in OSS Ecosystems

i* Mapping
RISCOSS Ontology concepts

i* Construct

Activity and all the Activity t...
Phase II

Activity II.1
Activity II.2
Activity II.3
Activity II.4
Activity III.1
Activity III.2
Activity III.3
Phase III

...
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iStar 2013: Using i* to Represent OSS Ecosystems for Risk Assessment

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Open Source Software (OSS) is a strategic asset for organisations thanks to its short time-to-market, the opportunity for a reduced development effort and total cost of ownership, and its customization capabilities. OSS-based solutions in-clude projects that are developed and co-evolve within the same organisation, OSS communities, companies, and regulatory bodies, forming an articulated stra-tegic business ecosystem. The adoption of OSS in commercial projects leads to numerous challenges in the wide spectrum of available OSS solutions and risks emerging from the intrinsic structure of an OSS project. In this position paper we devise the use of i* models for understanding the strategic perspective of OSS ecosystems, representing actors, intentional dependencies and responsibilities. We argue that these models can play a crucial role in the analysis of organisation-al risks inherent to OSS component adoption and in the definition of risk mitiga-tion activities

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iStar 2013: Using i* to Represent OSS Ecosystems for Risk Assessment

  1. 1. Using i* to Represent OSS Ecosystems for Risk Assessment
  2. 2. i* for Risk Assess. in OSS Ecosystems Content • Motivation • Research Objectives • Scientific Contributions • Conclusions, Ongoing & Future Work 2
  3. 3. i* for Risk Assess. in OSS Ecosystems MOTIVATIONS 3
  4. 4. i* for Risk Assess. in OSS Ecosystems Motivation • OSS Strategic asset  Short-time to market  Reduced development & maintenance cost … • OSS Integration involves risks  RISCOSS will provide some risk management strategies for risk identification & mitigation • OSS Project composed by multiple “Actors”  RISCOSS wants to explore the Strategic Rationale behind the OSS Ecosystem 4
  5. 5. i* for Risk Assess. in OSS Ecosystems RISCOSS Project Specification of risk identification, management and mitigation methods for community-based and industry-supported Open Source Software (OSS) development, composition and life cycle management to individually, collectively and collaboratively manage OSS adoption risks 5
  6. 6. i* for Risk Assess. in OSS Ecosystems RESEARCH OBJECTIVES 6
  7. 7. i* for Risk Assess. in OSS Ecosystems Research Objectives • COTS Adoption Processes: Well-defined  Guidelines for risk analysis, cost estimation & contract agreement • OSS Adoption Process: Missing  • OSS Community:     +1 business goal No service Agreement No “formal” roadmap Risks: lack of roadmap and ownership, unclear responsibility and response time (bugs),… 7
  8. 8. i* for Risk Assess. in OSS Ecosystems One RISCOSS Main Objective • O1: Support Risk Assessment for OSS adoption using i* framework …  Understanding the OSS Ecosystem  Evaluating risks • Lack of ownership: strategic dependencies? • Lack of roadmap: community structure? • … providing …  Guidelines  Measures • … to support the decision process 8
  9. 9. i* for Risk Assess. in OSS Ecosystems SCIENTIFIC CONTRIBUTIONS 9
  10. 10. i* for Risk Assess. in OSS Ecosystems Scientific Contributions • Ecosystem Patterns • Levels of abstraction • Guidelines for specification models & repositories • New modelling concepts 10
  11. 11. i* for Risk Assess. in OSS Ecosystems Ecosystem Patterns • Role: Producer, Consumer, Community • Setting: Industrial, Academia, Public Administration • Business Strategy: from OSS collaboration to exploitation • Business Process: adoption, migration, consolidation, improvement 11
  12. 12. i* for Risk Assess. in OSS Ecosystems Level of Abstraction • Different level of detail (class/instance)  E.g. Instances for identifying heroes • 3 i* Diagrams  SA: OSS Ecosystem actor relationships  SD: OSS Ecosystem actors dependencies  SR: OSS Ecosystem actor & dependencies rationale 12
  13. 13. i* for Risk Assess. in OSS Ecosystems XWiki.org SA Diagram 13
  14. 14. i* for Risk Assess. in OSS Ecosystems XWiki.org SD Diagram 14
  15. 15. i* for Risk Assess. in OSS Ecosystems XWiki.org SR Diagram 15
  16. 16. i* for Risk Assess. in OSS Ecosystems Guidelines & Repository • RiSD Adaptation • Need to define  General guidelines for SR  Specific guidelines related to OSS Ecosystems  Who is the “responsible” for the roadmap?  How “companies” influences the community? • Repository for OSS models  For analysts to get project overview and identify risks 16
  17. 17. i* for Risk Assess. in OSS Ecosystems New Modelling Concepts • Risk-related constructs  Risk, event, … • For dependencies:  No delegations/responsibilities, but “expectations”?  No duties, but “social norms”?  Available i* risk modelling approaches 17
  18. 18. i* for Risk Assess. in OSS Ecosystems CONCLUSIONS & FUTURE WORK 18
  19. 19. i* for Risk Assess. in OSS Ecosystems Conclusions • RISCOSS objective: Support decision making related to the risk assessment in OSS adoption • i* for OSS Ecosystem models • Scientific Contributions  Ecosystem Patterns: Role, Setting, Business Strategy & Business Process  Levels of abstraction & SA Diagrams  Guidelines for specification models & repositories  New modelling concepts 19
  20. 20. i* for Risk Assess. in OSS Ecosystems Ongoing & Future Work • We …  Modeled RISCOSS 5 use cases (i*)  Are analyzing these models in order to … • Identifying potential patterns • Identify potential new modelling concepts • Furthermore, we are …  SLRs: OSS Ontologies, OSS Ecosystems & OSS Risks • In order to…  Define an ontology linked to the i* elements (UFO)  Identifying risks, metrics & mitigation activities 20
  21. 21. Hope you liked it!
  22. 22. i* for Risk Assess. in OSS Ecosystems i* Mapping RISCOSS Ontology concepts i* Construct Activity and all the Activity types Task Actor and all the Actor types Actor Community Actor Resources and all the Resource types Resource Role and all the Role types Actor Property has-actor is-part-of link Generalization/specialization hierarchies is-a link 22
  23. 23. Phase II Activity II.1 Activity II.2 Activity II.3 Activity II.4 Activity III.1 Activity III.2 Activity III.3 Phase III i* for Risk Assess. in OSS Ecosystems RiSD for OSS Ecosystem Activity III.4 Activity III.5 Activity III.6 RiSD Identifying departing actors RiSD for Ecosystems … including OSS Adopter and/or OSS Project as an actor Establish goal dependencies among actors Classify and rename dependums Check for new actors and … no related to actor inside the dependencies OSS Adopter and/or OSS Project Include Software System No Apply Identify subsystems (is-part-of Identify OSS Adopter’s and/or OSS link) Project’s actors (is-part-of link) Refine software system Refine OSS Adopter and/or OSS dependencies Project’s actors dependencies Identify subsystems Identify Adoper and/or OSS dependencies Project`s actors dependencies Classify and rename dependums Check for new actors and dependencies … specializations and aggregations) 23

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