Bi-Directional Synchronization Engines for Heterogeneous Enterprise Content Platforms: A Conflict Resolution Framework Using Vector Clocks and Semantic Merge Policies

Abstract

Enterprise organizations increasingly operate heterogeneous content management ecosystems in which user-facing collaboration platforms—such as Microsoft SharePoint—coexist with backend records management and compliance systems—such as Oracle WebCenter Content (WCC)—necessitating bi-directional synchronization that preserves document integrity, metadata fidelity, and security permissions across architecturally dissimilar platforms. Classical distributed consistency mechanisms, such as Conflict-free Replicated Data Types (CRDTs), Operational Transformation (OT), and vector clocks, work well for homogeneous replica sets or text-based collaboration, but they do not consider heterogeneous metadata schemas, different permission models, and regulatory compliance constraints that are typical in enterprise content synchronization. This paper introduces BiSync, a conflict resolution framework that extends vector clock causality tracking with semantic merge policies. These policies are domain-specific rules based on document type, metadata schema mapping, and organizational compliance requirements. BiSync addresses three conflict classes: content conflicts (C1), metadata mapping conflicts (C2), and permission synchronization conflicts (C3). We introduce the Permission Drift Index (PDI), a quantitative metric measuring cross-platform permission state divergence, and decompose it into over-permissive and under-permissive components to distinguish data exposure risk from productivity impact. An evaluation of production workloads at Global 2000 enterprises—covering 4.7 million synchronized documents over 18 months—shows that BiSync reduces PDI by 41.2% compared to last-write-wins (LWW) approaches, achieves near real-time synchronization latency (median: 3.4 seconds), reduces storage needs by 70.2% through Remote Blob Storage (RBS) offloading, has zero GDPR/HIPAA compliance violations, and achieves 97.4% automatic conflict resolution.