Software development is a method of computer programming, documenting, and bug fixing that consists of creating as well as managing applications and frameworks that results in a software product. It can be developed for various purposes; the three most useful reasons are to meet a perceived need for some set of potential user, for personal utility, or to meet specific needs of certain clients. If you are pursuing software engineering, then there are several approaches used to structure, plan, and control the process of developing an information system. To know more about them, read further as here we have enlisted top-five methodologies used in software development:
Waterfall (a.k.a traditional methodology)
The waterfall model is a traditional version of system development life cycle model used in software engineering. It is different from the recent innovation of agile software development and is often viewed as the classic approach to the systems development life cycle. The acquired benefit of this process is that it permits for departmentalization and managerial control. In theory, this model leads to prompt delivery of project as each phase is planned in detail. In practice, this traditional methodology falls short of expectations as it does not embrace the necessary changes and revisions that are mandatory for most of the projects. Once an application is in the testing stage, it is very complicated to go back and alter changes that were not taken into account in the concept stage. There are several alternatives available to waterfall model that consist of the following:
- Joint application development
- Rapid application development
- Spiral model
Dynamic system developmental model methodology
- This methodology was developed in the UK in the mid-1990s. It is the expansion of rapid application development model. It consists of nine principles:
- Active user involvement
- Frequent delivery of products
- Reversible changes during development
- Requirements that are baselined at high level
- Integrated testing throughout the life cycle
- Collaboration and cooperation between all stakeholders
- Iterative and incremental development to ensure convergence on an accurate business principle
- Using fitness for the business person as the essential criterion for acceptance of deliverable
- Empowered team that has all the authority to make crucial decisions
Crystal method methodology
Crystal methods are considered as “lightweight methodologies.” Alistair Cockburn, an American scientist, developed the crystal methods approach. His core focus is on the people, interaction, community, skills, talents, and communication with the beliefs that these have the first order impact on performance. Like other agile process approaches, it promotes frequent delivery of working software, high user involvement, and removal of bureaucracy of distractions.
Ken Schwaber developed scrum methodology. This approach allows the creation of self-organizing teams by providing verbal communication covering entire team members and disciplines that are involved in the project. The central function of scrum methodology is its recognition that fundamentally practical challenges cannot be addressed successfully in a traditional “process control” manner. Scrum adopts pragmatic approach that states problems cannot be completely understood and defined. The primary focus of this methodology is maximizing team’s ability to respond in an agile manner to emerging challenges.
Agile software development methodology
“Agile development” is an umbrella term used for various iterative and incremental software development methodologies. This method is a conceptual framework for undertaking software engineering projects. Such method attempts to minimize risk by developing software in short time-boxes called iteration.
Over time a wide range of software development methodologies have been elaborated, therefore selecting the appropriate one is not an easy decision to make. Therefore, you need to consider several aspects such as implementation time, project, budget, etc. The success of any software development project depends on employing suitable methodology that is adequate for the specific characteristics of that project.
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