Software Development Life Cycle is the process that produces software with the lowest cost and highest quality in the shortest span of time. SDLC is a process that consists of a detailed plan describing all the details regarding how to develop, maintain, and replace/alter specific software. It is the methodology used to improve the quality of software and also improving the overall development process
We can say, SDLC or the Software Development Life Cycle is a process that produces software with the highest quality and lowest cost in the shortest time. SDLC includes a detailed plan for how to develop, alter, maintain, and replace a software system
Let’s understand now How SDLC works?
SDLC tries to improve the quality of software development and tries to shorten the production time, it also works on minimizing the cost of software development. SDLC achieves all these goals by creating a plan that removes all the pitfalls under software development projects.
Stages Of Software Development Programme
Following are the Stages of SDLC they ensure that the process is working in a smooth, efficient, and productive way:
Identify. First step under the software development program is to identify the current problem. To ask a question “What don’t we want?” “What don’t we want?” This stage of SDLC means getting input from all stakeholders like customers, employees, programmers, etc.
Plan/Requirement. The next step under SDLC is to plan, it involves asking “What do we want?”. At this stage, the team defines the requirements of new software and also analyze the cost required for it.
It also details the risks involved and provides sub-plans for softening those risks. At this stage, a Software Requirement Specification document is created. Planning related to quality assurance and risks associated is also done at the initial stages. Various technical approaches are studied and followed to implement the project successfully.
Minimum risk is taken into consideration. The next step is to clearly define the product requirements. Later approval is taken from a customer or through market analysis. All this is generally done by using the SRS (Software Requirement Specification) document which holds all the requirements of the project and is designed and developed during the project life cycle.
3. Design. The next step under the Software Development Life Cycle is designing and answering “How will we get what we want?” This phase of SDLC includes changing the software specifications into a framework called Data Specification. Feedback and suggestions from all the stakeholders are then received.
It’s important to have a plan for collecting and incorporating stakeholder input into this document. Any loopholes at this stage will result in collapsing of the whole project. Generally, more than one design approach for the product architecture is offered and recorded in a DDS - Design Document Specification.
4.Build/Development. Now we will build what we have decided, answer to “Let’s create what we want.” All the actual coding is done at this stage of SDLC for building software. This is the least complicated step if all the previous steps have been followed with attention. Developers are required to follow the coding guidelines defined by their companies
Tools like compilers, interpreters, debuggers, etc. are used to generate the code. High-level programming languages such as C, Java, PHP, C++, Pascal are also used for coding. The programming language is chosen on the basis of the type of software being developed
5. Test. The next step under the Software Development Life Cycle is to Test “Did we get what we want?” At this stage, we test for defects and deficiencies. Later after detecting we try to fix all the issues until the product meets the actual specifications.
6. Deploy. “Let’s start using what we got.” This step involves feedback from mobile users, who are the end users. Depending on their feedback changes and adjustments are made. Often, this part of the SDLC process happens in a limited way at first. Depending on feedback from end users, more adjustments can be made. Software tested is released in the relevant market. Sometimes as per the requirements the product can be released in some specific market before final launch.
7. Maintain. Phases of Software Development life cycle includes another step that is to Maintain or like “Let’s get this closer to what we want.” It’s not so easy for the plan to turn out to be perfect when it runs in reality. Further, as real life conditions are different, we need to advance and update the software. After the product is released in the market, its maintenance is done for the existing customer base.
For the complete guide, you can use this ref Link:- https://codersera.com/blog/complete-guide-on-sdlc/