Software development lifecycle (SDLC) refers to a framework that identifies the different stages of software development. The SDLC meaning involves the comprehensive plan for building, deployment, and maintenance of the software.
SDLC covers the entire project development life cycle such as all the aspects involved in data collection of the requirements for product maintenance.
SDLC is an approach that details every stage needed in the software development for the delivery of a high-quality product. SDLC process provides the comprehensive project development life cycle of software, which starts from inception to product deployment.
By strictly adhering to the SDLC process, this enables the software development to be managed in a systematic and disciplined way.
The main goal SDLC is to achieve a high-quality product based on the client’s specifications.
This article provides the SDLC phases with examples. These include the gathering of requirements, design phase in SDLC, coding, testing, and maintenance. It is vital to satisfy all these phases to develop a product in a systematic SDLC methodology.
For instance, a created software should have a team whose work is evenly distributed on the product features. Every group has a free hand to work on the tasks assigned to them. One of the software developers handles the SDLC planning phase or the initial early design while the other team is in charge of the coding and the other takes the documentation task.
To prevent potential project failure, each team should have in-depth knowledge and understanding of delivering the expected product.
SDLC project development life cycle
SDLC project development life cycle is the representation of the cyclic process of creating the software.
Requirement gathering and analysis => Design => Implementation or coding => Testing => Deployment => Maintenance
#1 Requirement gathering and analysis
In this initial phase, all the pertinent details are collected from the clients when conceptualizing a product based on their expectations. Any issues and clarifications should be resolved in this phase.
This is when the business analyst or project manager facilitates a meeting with the client to collect all the relevant information such as what the customers seek to build, who are their target end users, and what is the main objective of developing the product. Before the actual product development, it is essential that the software developers have an in-depth understanding or product knowledge.
For instance, a client intends to have an application that is related to a money transaction. To make it work, the customer needs to provide clear instructions of what transaction type should be created, how this will be done, in what currency and all other related information.
After gathering all the requirements, an analysis is held to verify the feasibility of product development. If there are any issues, confusion or clarification needed, further discussion is held in a call.
Once everything is settled, the Software Requirement Specification (SRS) document is developed. This document comprehensively details the agreed specifications while the developers should have fully understood what the client wants and reviewed by the customer for future reference.
In this next phase, the collected list of requirements are listed in the SRS document and used as an input to derive a software architecture for the implementation of system development.
#3 Coding implementation
Once the software developer gets the approved copy of the design document, implementation/coding commences. The software design is converted into the source code. All the software components are put into action in this stage.
#4 Testing phase in SDLC
Upon completion of the coding and the release of the modules, then the testing begins. In this phase, the created software is evaluated thoroughly. For any potential errors and defects detected, the developers are requested to get them fixed.
Then the retesting or the regression testing takes place to ensure that the software is based on the customer’s expectations. Product testers review the SRS document to ensure that the software meets the customer’s standards.
After testing the product, it is being deployed to the production environment or initial User Acceptance testing (UAT) to identify if it meets the customer’s standards.
Regarding UAT, a good production environment is provided for the customer and the developers when conducting the testing. If the client is satisfied with the created application, he then signs off the app letting the developer go live.
After deploying the product in a production environment, product maintenance follows. This is needed in case any issue is found and requires to be fixed or any modification should be held. The developers take care of all the needed changes.