● The Rational Unified Process (RUP) is a software engineering process, which captures any of best practices in modern software development. The notions of （71） and scenarios ave been proven to be an excellent way to capture function requirements. RUP can be described two dimensions – time and content. In the time dimension, the software lifecycle is broken into cycles. Each cycle is divided into four consecutive （72） which is concluded with awell-defined （73） and can be further broken down into （74） – a complete developmentloop resulting in a release of an executable product, a subset of the final product underdevelopment, which grows incrementally to become the final system. The content structurerefers to the disciplines, which group （75） logically by nature .