Runtime-Reconfigurable Workflow Engine: Enabling Live Migration With Temporal Integrity

Abstract

This article presents an architectural framework for a runtime-reconfigurable workflow engine capable of live instance migration with preserved temporal integrity. The proposed system enables seamless evolution of workflow definitions while maintaining continuity for in-flight process instances, addressing critical limitations in current Java-based engines. Through a version-aware execution model and graph-based representation, the architecture supports differential analysis between workflow versions and implements sophisticated migration mechanisms. Temporal validation using linear temporal logic ensures that time-based constraints remain valid during transitions, while comprehensive audit capabilities maintain compliance in regulated environments. The framework integrates with existing Java enterprise ecosystems through standardized interfaces and implements optimized storage strategies to minimize performance overhead. Evaluation through an insurance claims case study demonstrates the practical viability of the approach for handling regulatory changes without business disruption. Despite challenges related to semantic gaps and temporal drift, the architecture establishes a foundation for more intelligent workflow evolution through formal modeling and AI-assisted transformation techniques.