Paeem: A Phase-Aware Effort Estimation Model For Soa-To-Msa Migration
Keywords:
SOA, Microservices Architecture (MSA), Phase-Aware Effort Estimation Model (PAEEM), Phase Overlap Index (POI), Rollback Complexity Index (RCI), Learning Curve Factor (LCF), Application Modernisation.Abstract
A gradual transition from Service-Oriented Architecture (SOA) to Microservices Architecture (MSA) is increasingly adopted to minimise disruption during digital transformation. However, the estimation of the engineering effort for each phase of the migration is challenging due to service dependencies, rollback risk, and team maturity. This paper presents PAEEM (Phase-Aware Effort Estimation Model), a lightweight structured model for estimating phase-wise migration effort in SOA-to-MSA transitions.
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