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Software development life cycles: How long do they last? | Gigavoice Blog

Software development life cycles: How long do they last?

What are the 6 steps in a software development life cycle?

Knowing about software development and its life cycle is important so that you can participate in every step of this process. Whether you are the owner or stakeholder in a company that produces the software, ed or if you are a buyer/client that needs software or even the person in charge of creating the final product…everyone concerned should know how the software development process begins, medicine what happens during a development life cycle and how it ends.Image 2: Software development life cycles

Software development life cycle

A basic software development life cycle consists of steps from planning to implementation and maintenance. While there are different models of software development life cycle, phases are common for most of them. Phases in a software development life cycle include:

1. Planning and requirement gathering.

This phase can be colloquially called brainstorming. During the planning stage, all required information is gathered and analyzed. Managers and stakeholders talk about the benefits of the software, who will use it, how it will be used, what inputs are necessary, and what outputs should be created after using the software. Simultaneously, developers plan resources needed for all tasks and work closely with software architects, designers, modelers, etc. to plan the design. Further, a testing unit should be prepared, ready to test everything included in the plan. This phase can be divided in few subphases that will targets developers, designers, testers or managers – the entire team that will work on the software in next phases. Finally a “Requirement Specification” is created which serves as a guideline for the next phases. This phase take a little bit longer because good planning is half the job done.

2. Design.

In this phase, the physical part of the system is designed. All machines, computers, input or output devices are installed and ready for work with the data/information. The whole architecture is built and the system is ready for the next phase.

3. Coding.

This is the longest phase in the lifecycle of software development. As the name implies, developers work primarily on coding the software for the project and providing solutions. Developers can be divided into groups to work more effectively on subtasks which have been previously defined in the first phase, or created out of necessity.

4. Testing.

In this phase, the final product is passed to a testing department. Quality Analysts (QA) there work on different scenarios and try to find errors and bugs in the software…before it is published. QA personnel work manually or use automatic tools to ensure the quality and stability of every component separately, and by that relate it to the whole system. Testing can last for days or weeks (or even months), depending on the complexity of the software and the experience and knowledge of the developing team (good developer, less bugs and errors, less testing time needed).

5. Deployment.

In this stage, the Final Copy of the software is deployed to the customer, or if an in-house project, the software is launched live and users start using it.

6. Maintenance.

Testing is good thing, but the real problems starts when the customer starts using the software. Additionally, software should be maintained or upgraded from time to time and this phase lasts until the all known bugs are removed and all persons that work on the software acquire the required knowledge to work on it without any assistance.

Questions about software development life cycles

Now, are you ready for your big software project? We hope we’ve made you familiar with all basic phases of software development. Perhaps it would help to look more into models of software development. Please leave us your questions or comments about software development below.

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