What is Nonfunctional Requirements

The approach to decision support as an individual system has been replaced by a new viewpoint of intelligent software and systems. Based on this new approach, enterprise systems are designed to have Business Intelligence (BI) as an umbrella concept which covers various enabler tools and capabilities in the form of non-functional requirements. The current state-of-the-art in decision support takes the intelligence requirements of enterprise systems as important quality aspects into consideration, along with their functional and non-functional needs, but the literature lacks studies on the evaluation of these intelligence requirements. In this book chapter, business intelligence and enterprise systems literature are reviewed. Also based on the latest researches, the position of BI on these systems is discussed. In the following, through the study of BI capabilities and proposing them as non-functional, the BI Impacts on the design of enterprise systems and software would be described along the direction for future research and insights for information systems development.