Eliciting Information Requirements for DW Systems

Data Warehouse technology addresses business process analysis. However, it ignores upstream decision-making like formulating policies and policy enforcement rules. We provide a requirements engineering approach for building an integrated data for all types of decisions in an organization. To do this, we develop a two level generic platform with the bottom level having generic models of decisions, information, and decision-information association as well as information elicitation techniques for eliciting information for decisions. The higher level is the source of decision for the lower layer and is exemplified by policy enforcement rule decisions as well as operational decisions for managing the business process. Each source produces its own data warehouse requirements specification and these are integrated together using our integration technique.