Software development covers a vast area and while working on a project, there are several models that need to be considered. By models, it implies the methodologies and processes that have to be undertaken for the completion of a particular project depending on its objectives. In order to achieve the specified objectives, many development life cycle models have to be undertaken and these models define the multiple stages through which the project has to pass.

When you carry out the testing of the software that has been developed, the selection of the model has a very major impact on it. The selected model will define everything regarding the testing and will also decide upon the test technique to be used. Most of the top Singapore software development companies consider these models very important to get their project tested successfully.

Software development life cycle (SDLC) models help in navigating through the intricate and critical process of developing software. The model you select has a strong impact on the project’s quality, and the capacity to meet the expectations of the contributor. Every software development model has its own advantages and limitation and you need to be aware of them while selecting one.

Here are the popular models to consider before beginning with a specific software development project:

  1. Waterfall

It was the first one to be introduced and is often known as the linear-sequential life cycle model. The waterfall model is the simplest of all and you just have to complete the current stage before you can proceed to the next phase. This model is preferable for a simple and small project and there are no uncertain requirements. At the end of every stage, you can easily determine if the project is going on the right path or if you have to discontinue it; only after the development is complete, you can proceed towards the testing part.

  1. V-model

The verification and Validation model is similar to the waterfall model and it also involves a sequence of steps to be followed. Before you can begin with the next phase, the current one has to be completed.  The major difference is the testing of the product is designed in parallel V shape. The V-model requirements are BRS and SRS but the system test plan is created before development is started and the test plan concentrates on meeting the pre-decided requirements.

  1. Incremental Model

The incremental model involves several repetitions that take place throughout the development process.

With every repetition, new software modules are added and there will be no or little changes in the already completed modules. You can make a choice for development patterns out of two options available- sequentially or parallel.

Parallel development improves the delivery speed, however, the number of repeated cycles that are involved in sequential development can add to the time duration of the project and can make it expensive as well. The software will improve with every stage however, the design will remain constant.

  1. Spiral Model

The spiral model revolves around risk assessment and if you want to use this model, you will need an efficient team that has good experience in risk evaluation. This model involves 4 main activities that are planning, risk analysis, evaluation, and prototypes creation. In this model, customer involvement is also there and they can be involved during the review or exploration stage of each cycle; however, their involvement is not acceptable during the development stage.  

  1. Agile Group

Most of the organizations follow the Agile approach where three main factors are considered- iterative expansion, absolute discussion, and quick customer feedback. With this approach, it may quite a long time to complete a particular software development project. The models that come under the Agile group give more emphasis on fulfilling a part of the application promptly. Software testing activities are given importance as compared to detailed software documentation. So you can expect quick development but makes transfer and maintenance of the software more intricate.

  1. Scrum

Scrum is one of the most famous Agile models and it takes 2-4 weeks to complete a cycle as there is proper planning involved along with the assessment of previous cycles. That is why no changes are permitted once the sprint activities have been determined. The steps involved in the Scrum software development model are- planning, designing, developing, testing, deploying working increments, and reviewing is the last step.

  1. The Rational Unified Process

The Rational Unified Process (RUP) model divides the software development process into 4 stages – inception, elaboration, construction, and transition. This model assists in building a stable and flexible software; however, the process is not quick and flexible as the Agile approach. The project’s needs and goals determine the degree of customer involvement, documentation intensity, and repetition length.

These were some of the important and popular software development models that are implemented by top software development companies.

Author's Bio: 

I'm Matthew, a professional writer & blogger. I have experience of more than 5 years. I always look for new things in writing and look to share vital and relevant information through my words.
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