A multifactor approach for elicitation of Information requirements of data warehouses

Whereas requirements engineering for transactional systems aims to discover the functionality of the system-to-be, data warehouse requirements engineering aims to discover the Information contents of the data-warehouse-to-be. Though notions of goals, Decisions, business processes, business events have been used to set the context for Information discovery, the move from these to obtain the relevant Information is largely ad hoc, unguided, and does not provide traceability of Information. We propose four elicitation techniques that are inferred from manager concerns during Decision making and that provide guidance and traceability. These form a suite such that each augments the set of already discovered Information. Consequently, the possibility of missing requirements is reduced, thereby making for more effective requirements engineering.