What is the Software Development Life Cycle (SDLC)


There was only one method described as the Software Development Life Cycle — “develop large-scale functional business systems in an age of large-scale business conglomerates. Information systems activities revolved around heavy data processing and number crunching routines.

To pick the right one, you need to analyze your development processes thoroughly. You need to see if adhering to a rigid SDLC model or sticking to something more flexible is better for you.

The 7 Stages Of The Software Development Life Cycle


you are conducting thorough research on the product you are planning to develop. You are then discussing your plans with clients and stakeholders.

You are also identifying the pros and cons of the current software methods you are using. Thus, you can double down on the pros and reduce the cons to a minimum.

In order to make this research process as accurate as possible, you should take a look at your customer’s feedback. Feedback should include surveys, interviews, questionnaires, quizzes, and more.

It’s super important to know what your customers want so that you can build it for them. In the end, you are not going to make a profit if you don’t deliver the product your customers truly desire.

Requirements Analysis

Once research is completed you can proceed forward to creating an SRS (Software Requirements Specification) document. In this document, you are going to describe all the product’s features. Then you are going to present the SRS doc to the stakeholders so that they can either accept it or reject it. It depends on the time and financial constraints.


Once the SRS doc is completed, your team, specifically the product architects, will create another document — the DDS (Design Document Specification).

In the DDS, you’ll have your features thoroughly described. Inside the document, you’ll also have the budget and time estimates required for the product to be completed successfully. You’ll basically have everything your developers need to start working on the actual product.

But prior to that, the DDS must be approved by the client and the stakeholders. Sometimes, changes are required due to various reasons ranging from time and budget estimates to software robustness.

Implementation / Development

The implementation phase in SDLC typically takes the longest period of time as it involves the actual development of the product.

Your developers will work on creating a product based on the DDS.

Also, depending on DDS’s robustness, developers will either code without much hassle or will have trouble along the way.

They must also select the most appropriate coding language for the type of software you are building.

It’s vital to notice that the communication between your team at this phase must be effective and accurate. That’s because your developers will need to communicate with the QA (quality assurance) testers, the product and project managers. This will help them in developing a product your customers will genuinely enjoy.


Once the product is developed, the software development life cycle testing phase follows. Here, the QA testers have to go through the codebase in order to find bugs and errors. If issues are reported, the product is turned back to the developers for them to rectify the flaws and roll it out again. This phase repeats until the product becomes flawless.


Once all the errors are removed, the product is rolled out to the market automatically.

Maintenance and improvement

you should observe how the market reacts to your product. Then based on the feedback you receive, you create reports on what needs to be improved.

Do you need to upgrade the software version? Do you need to add more features? Do you need to make the interface simpler and more intuitive?” And so on.

Now that you know the software development life cycle steps, let’s see what the pros and cons of the SDLC are.

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