A Viewpoint-Aware Case-Based Framework for Reusing Analytical Experiences in Digital Decision-Support Processes

In digital decision-support environments, users continuously generate analytical experiences, annotations, and metadata while interacting with data warehouse systems. Reusing these experiences can improve decision-making, reduce redundant analytical efforts, and support novice users. However, effective experience reuse remains challenging in Common Warehouse Metamodel (CWM)-based environments due to the diversity of user roles, objectives, and analytical contexts. This paper proposes the Common Case Reuse Framework (CCReF), a viewpoint-aware Case-Based Reasoning (CBR) framework that integrates viewpoint-dependent experience representation and retrieval into the CBR reuse process for CWM-based decision-support environments. CCReF extends our previously proposed viewpoint metamodel by integrating case representation, indexing, similarity-based retrieval, adaptation, revision, and retention mechanisms. A preliminary evaluation using four representative OLAP scenarios demonstrates that CCReF can retrieve relevant past experiences and reuse them in similar decision contexts. Although large-scale validation remains future work, CCReF provides a structured foundation for viewpoint-aware experience reuse, metadata management, and knowledge sharing in digital decision-support systems.