Modeling of Instant Messaging System Based on RUP and UML

Rational Unified Process (Rational Unified Process, RUP) is a software engineering process of use-case driven, architecture-centric, iterative and incremental development. This paper analyzes the core workflow of RUP, cuts the RUP process, uses Unified Modeling Language (Unified Modeling Language, UML), proposes the steps for small and medium software system modeling, and applies to the modeling process of instant messaging system analysis, design and implementation. Practice shows that the combination of RUP and UML provides developers with guidelines, templates and guidance for the development of software, which helps to reduce the risk of product development, improve the efficiency of software development and improve the quality of software.