Today, in a context of increasing digitalization, software development is becoming ever more important. This is because a large part of people’s daily activities, as well as the operation of companies and organizations, are becoming increasingly linked to software. Therefore, we want to discuss the software development life cycle, what it is, and its phases.
What is software?
Before discussing the software lifecycle, it’s necessary to define what we mean by this term. Software can be defined as the set of instructions, data, or programs used to operate computers in order to perform specific tasks. In this sense, software differs considerably from hardware, the latter describing the physical aspects of the computer. In other words, software is a word used generically to define various programs, applications, and scripts that run on different devices.
What is the software development life cycle?
Siguiendo lo mencionado con anterioridad, podemos decir que el ciclo de vida del desarrollo de software se refiere a la estructura que contiene todos los procesos, las tareas y las actividades que están relacionadas tanto con el desarrollo como con el mantenimiento de un producto de software. Esto abarca,por lo tanto, la completa vida del sistema, desde el momento en que se definen sus requisitos hasta que se ha finalizado el uso.
The phases of the software development life cycle
Understanding its importance, the software development life cycle has different phases and steps that are necessary to ensure that programs offer sufficient efficiency, stability, and reliability, as well as to guarantee a safe and satisfactory user experience. In this sense, we can say that the phases of the software development life cycle are as follows:
The application
The first phase in the software development life cycle is when an individual or company requests a specific software product. At this initial stage, communication takes place, giving the client the opportunity to explain their requirements, including their specific needs, and other relevant details. By providing this information, they formally request the development work.
Planning
Once the development company has the client’s request and related information, the planning phase begins. This necessarily includes a thorough analysis of the client’s requirements to determine, for example, how clearly they can be understood.
Based on the analysis, the process ultimately involves in-depth investigation, including practical demonstrations that outline the user model for the development to be undertaken. Requirements are then grouped, both in functional and system terms.
The feasibility analysis
Once the previously mentioned step has been completed, it’s time to move on to the phase known as feasibility analysis. In the software development life cycle, the feasibility phase follows the collection and grouping of requirements, and its purpose is to analyze which part of the software is capable of meeting the users’ requirements.
Furthermore, an investigation is conducted to determine if the development deemed necessary is technologically and financially viable. While this can be done in various ways, it most commonly involves using algorithms to identify whether the project is feasible and if modifications to the original idea are necessary.
Design and coding
The next phase involves the logical and physical design of the development. Generally, this is the stage where metadata and diagrams are created. Subsequently, the programming or development phase begins, in which the most suitable programming language is chosen for the specific case, while executable programs are developed.
Integration
While this phase doesn’t necessarily occur in every case, the reality is that software may need to be integrated with data, libraries, or other types of programs. In other words, we can say that this is the development phase in which the software is integrated with other entities in the “outside world.”
The tests
Testing is a fundamental phase in the software development life cycle. Essentially, it involves testing the development as many times as necessary until you can be 100% certain that the functionality is correct. It’s also the stage where you can identify if modifications are needed.
The implementation
Towards the end, implementation is the step in which the software is installed. At this stage, it is necessary to evaluate adaptability, integration, and portability in order to later install any necessary configurations.
Maintenance
Finally, the last phase of the software development life cycle is maintenance. This phase is responsible for ensuring that the project elements continue to function properly, aiming to reduce minor errors, improve efficiency, and confirm the development’s successful operation.
At Coodigos, we are software developers in Colombia. We research the market, analyze, implement, and evaluate our processes to deliver innovative results using various programming languages and methodologies. We are one of the leading software development companies. Visit our website to learn more.