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What is Software Development Lifecycle? Introduction to SDLC

Programming software or application may sometimes be somewhat stressful, especially when encoding various parts of a large project. Thus, if there is a system in place that allows you to step-by-step to capture the development process without overcoming it, it is indispensable to create a high quality software.

This is exactly the SDLC – an activity system that consists of several phases or phases, and when you follow it, you ensure that you know the task well, while eliminating the problem as much as possible.

In this article there will be deep diving in these stages and in each of them.

Business Analysis or Discovery Phase

First you need to design it. There is not too much planning, and if you can not miss a small detail at this stage, you can find yourself thinking about the whole project.

There are some things you need to do in the analysis phase. You have to start with the ideas and ideas that your project can be based on. For example, if you have developed a new booking system for a hotel, consider combining hotel reservations with a restaurant booking – one of many options.

Make sure your ideas are consistent with the requirements of your customer (or your own) to stick to the original tasks while they are creative and come up with innovative ideas.

It is also important to keep in mind the available timeframes, costs, and resources so that you do not develop a thing that your client computer system can not handle, you can not afford or laugh for a long time .

All in all this section is for you to better understand what the ultimate piece of software will be like this will be the foundation for your work.

At this point in SDLC, you need all the information you need for a brief start to software development and you can even get a basic prototype – at least you have to be able to have a more detailed breakdown of the project than before. We take a good time to create a short prototype so that you and your clients can see your ideas in action and gather feedback.

Now, after thoroughly detailing the development project, he broke into smaller tasks. If you work with a team of developers, this is also a good time to properly allocate tasks so that everyone is aware of what role they are doing and start preparing them.


This section is relatively straightforward compared to the rest of the SDLC and typically includes a system analyst and a leading developer. They discuss the system on which the software is installed, any restrictions that the system has, which would be relevant to the functionality of the software, and ensure that the proposed problem will not pose any major problems after execution.

After the Systems Analysis phase, we can create a more complex prototype so that each participant can better understand what will be the final product and take advantage of any problems that may arise.

Before you step into the next step in programming, the lead developer will confirm all the plans you have created and ensure that your customers meet their needs before you begin and begin the major development.


There is not much discussion about this stage than it's time to get started! Do everything you have planned to do, start programming and work out a software that you are comfortable with.

One of the things that you should keep in mind is that even though you have gathered all the information you need in the past if you are not sure of your job requirements, you should contact the customer – there is no shame in eliminating uncertainties and no will be criticized for you.


Testing the encrypted program is important. It's not as easy as running the program, using all of the features at once, and then calling it to quit – a thorough testing needs to be done on more than one party while using some testing methods.

  • Without overflowing, some of the things that should be kept in mind during the testing phase are below.
  • If you collaborate with the program or enter data (input), will you get the output you want?
  • Features of the program can easily be identified and functioned as they should?
  • Does the program fulfill its original purpose?
  • Does the program work efficiently and use the resources of the computer system efficiently?
  • Are there any improvements you can make?

After you've tested the program excessively to make sure it's okay, you're ready to implement it.

However, if you find that there are problems or that improvements can be made, be sure to improve them before proceeding. Remember to note carefully the errors you encountered and fix these errors – this is useful if you experience any subsequent errors.


Finally, it's time to run the software into the environment for which it was intended. This is the last step in the SDLC and involves installing the software on the planned computer system, any other system that will be needed and how to use it through the client.

You also need to consider creating a basic user guide, depending on how big the complexity of the program is and you do not have to contact each question or query. The forwarding of user guides facilitates the explanation of software for a large number of groups.

What's next?

Now that the software was created from scratch and installed and set up as it is, you can put your feet back and relax.

While an unofficial section, after executing the programmed software, needs to be prepared for maintenance. In general, maintenance will repeat the modifications required by the client for software, updates, or fixes.

Some software development projects require maintenance while others are not, so they can not be considered the SDLC section. This is the SDLC, software developers and engineers despite the ability to seem excessive software development model to ensure they do not commit (yet critical) mistakes, and as a result that exceeds the expectations of its customers.

Since this kind of process is in place, it ensures that you are on the right track and because it continuously takes notes noted in the design phase, unreasonably avoid the uncertainties caused by the destruction and cause it to start from scratch.

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