is the process of conceiving, specifying, designing, programming, documenting, testing, and bug fixing involved in creating and maintaining applications, frameworks, or other software components. Software development is a process of writing and maintaining the source code, but in a broader sense, it includes all that is involved between the conception of the desired software through to the final manifestation of the software, sometimes in a planned and structured process. Therefore, software development may include research, new development, prototyping, modification, reuse, re-engineering, maintenance, or any other activities that result in software products
In software engineering, a software development process is the process of dividing software development work into distinct phases to improve design, product management, and project management. It is also known as a software development life cycle. The methodology may include the pre-definition of specific deliverables and artifacts that are created and completed by a project team to develop or maintain an application.
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As we can see, these activities are similar to those within systems analysis and the design of software. Depending on the methodology used, the activities can be arranged differently. They are arranged sequentially, for example, in the well-known Waterfall Model, while in the Incremental Development model they are inter-related.
his is also known as requirements engineering and is defined as the identification of the requirements of the system and the limitations within which the system will operate, develop or can evolve.
According to the IEEE definition design is both “the process of defining the architecture, components, interfaces, and other characteristics of a system or component” and “the result of [that] process”. Viewed as a process, software design is the activity, within the software development life cycle, where software requirements are analyzed in order to produce a description of the internal structure and organization of the system that will serve as the basis for its construction. More precisely, a software design (the result) must describe the architecture of the system, that is, how the system is decomposed and organized into components and must describe the interfaces between these components. It must also describe these components into a level of detail suitable for allowing their construction.
Software testing is defined as an activity to check whether the actual results match the expected results and to ensure that the software system is Defect free. It involves execution of a software component or system component to evaluate one or more properties of interest
is an investigation conducted to provide stakeholders with information about the quality of the software product or service under test. Software testing can also provide an objective.