The software development cycle (SDLC) describes the stages of software development and the order in which these stages should be implemented. The consequences of each stage are visible in the next steps. It is a complicated process of transforming a user’s need into a product and maintaining that product until it is withdrawn.
In most phases of the software development life cycle, we find tasks related to quality assurance and testing. A formal description will not guarantee the creation of a high-quality product, but it will certainly help to improve its production.
The software development cycle also called SDLC (Software Development Life Cycle) was created in 1960. It has not evolved much since then and is still successively used for planning, designing, building and supplying IT systems.
Software development is not a simple matter and no one who participated in a large project needs to be convinced. The times when one person was involved in collecting requirements, analyzing, designing, programming, testing and implementing an IT product are long over.
It is especially important nowadays, when human life in a direct and indirect meaning may depend on the software being created. Therefore, processes, methods and methodologies are being developed for software development and management that attempt to describe this complex mechanism for creating and maintaining software.
To put it simply it is a series of interdependent stages in which activities are undertaken, starting from the disclosure of the need to build an IT system, the presentation of its ideas, construction, use, adapted to possible changes in functioning (usually resulting from due to changing environmental conditions) and ending with decommissioning.
Difficulties in building large force systems, many years ago, the need to systematize the process of manufacturing IT systems. Therefore, models were created to organize the actions taken and the states in which the IT product is located. Currently, the collection of software life cycle models is extremely rich.
Two approaches can be used to develop software using SDLC and these are the traditional (Waterfall) and agile (Agile) approaches. Software engineering seeks to identify and describe the basic phases of software development and operation, as well as indicate a model for the optimal course of these phases.
These terms are often not fully understood. It is very common to believe that the cascade process is an outdated process, and the iterative process is the only valid approach. the choice of process depends to a large extent on the nature of the project, and thus there is no single valid software life cycle model. Moreover, most often it turns out that in practice models that are modifications or hybrids of basic processes perform best.
The software life cycle (SDLC) – from the idea to its exit from the market is a long process. Analyzes, implementations, maintenance or other activities often require the cooperation of dozens of experienced programmers. However, SDLC is something you can’t avoid because every step is worth its weight in gold and omitting even another one will cause the failure of the project.