Software development is the conceiving, specifying, designing, programming, documenting, testing, and bug fixing involved in creating and maintaining applications, frameworks, and other software components. Software development is a process of writing and maintaining the source code, however, it incorporates everything from the origination of the ideal programming to the last appearance of the product, occasionally in an organized process. Software development may include research, new development, prototyping, modification, reuse, re-engineering, maintenance, and any other exercises that result in programming items.

Software can be produced for a variety of purposes, the three most basic being to address explicit issues for a particular customer/business (e.g., custom software), to meet an apparent need for potential clients (e.g., commercial and open-source software), or for individual use (e.g., a researcher may compose programming to computerize an everyday undertaking). Embedded software development, which is utilized to control consumer products, requires the development procedure to be integrated with the development of the controlled physical item.

The need for better quality control of the software development process has given rise to the software engineering discipline, which applies the systematic approach of the engineering paradigm to the process of software development.

There are numerous ways to deal with software programming management, including software development life cycle models, philosophies, or procedures. A cascade model is a customary form, notable among the latest innovations of Agile software development.