Hi,ENGINEERZ

Software engineering can be divided into ten subdisciplines. They are:

Software requirements: The elicitation, analysis, specification, and validation of requirements for software.
Software design: The design of software is usually done with Computer-Aided Software Engineering (CASE) tools and use standards for the format, such as the Unified Modeling Language (UML).
Software development: The construction of software through the use of programming languages.
Software maintenance: Software systems often have problems and need enhancements for a long time after they are first completed. This subfield deals with those problems.
Software configuration management: Since software systems are very complex, their configuration (such as versioning and source control) have to be managed in a standardized and structured method.
Software engineering management: The management of software systems borrows heavily from project management, but there are nuances encountered in software not seen in other management disciplines.
Software development process: The process of building software is hotly debated among practitioners with the main paradigms being agile or waterfall.
Software engineering tools, see Computer Aided Software Engineering
Software quality