Cloud Migration Point
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CMP is a methodology for estimating the effort required for cloud migration projects using a modified function point analysis approach. It focuses on migrations between data centers involving IaaS and PaaS offerings. CMP breaks the migration down into components like network complexity, problem domains, and class complexities. A final CMP score is calculated as a weighted sum of these components to estimate the migration size. The paper finds CMP shows promise as a software size measure for cloud migrations.
Cloud Migration Point
- 1. Cloud Migration Point FP based size estimation for cloud migration projects Research: Van T. K. Trany, Kevin Leey, Alan Feketez, Anna Liuy and Jacky Keungx
- 2. Abstract One of the major obstacles to enterprise adoption of cloud technologies has been the lack of visibility into migration effort and cost. In this paper, we present a methodology, called Cloud Migration Point (CMP), for estimating the size of cloud migration projects, by recasting a well-known software size estimation model called Function Point (FP) into the context of cloud migration.
- 3. Scope • Migration between two data centers only (typically, one in-house and one in- cloud) - We assume that migration projects are directional (i.e. components are moved from local to remote). • Cloud offerings are of Infrastructure-as-a-Service (IaaS) or Platform-as-a-Service (PaaS) types – CMP considers only IaaS and PaaS, although some parts of our cost model might still be applicable to other cloud offerings. • Software-as-a-Service (SaaS) is deliberately removed from the scope since users of SaaS have no control over the deployment process. • Migrating application is object-oriented - CMP assesses application code changes at ‘class’ level. • Target cloud is selected - CMP estimates the complexity of migrating to a specific cloud platform, excluding the process of determining the most suitable cloud technologies/providers, and the need to get familiar with the specific cloud technology and offering. • Design decision is made - CMP requires inputs from the design phase and is most appropriate to apply before the implementation phase of a migration. • Migration tasks are outlined - CMP measures the size and complexity of migration tasks, hence migration tasks must be outlined in advance.
- 4. CLOUD MIGRATION POINT • LAN to LAN • LAN to WAN • Problem Domain Type (PDT) • Human Interaction Type (HIT) • Data Management Type (DMT) • Task Management Type (TMT)
- 5. Complexity of each class
- 6. Complexity of each IC-class
- 7. Properties
- 8. Formulae • The final value of CMP is determined as a weighted sum of its four components
- 10. Conclusion • Cloud Migration Point (CMP) approach has been developed in this paper as an important software size measure for legacy-to-cloud migration projects