Picture a gourmet chef in a kitchen: his ingredients arranged atop a wooden table, apron firmly girded around his torso and neck, hands on a sharp-edged knife chopping a piece of steak with dexterity.
Without a doubt, he knows the right amount of seasoning he needs in preparing a sumptuous meal.
The Tech Industry functions in the same way, but with a different terminology. In order to build software that will solve everyday problems in the world, Software Engineers implore a recipe called: The Software Development Life Cycle (SLDC).
In this article, I’ll take you through the intriguing world of SLDC.
What is the Software Development Lifecycle?
Various tech organizations and blogs have provided different definitions of the Software Development Life Cycle (SDLC).
According to AWS, it is a methodical and resource-efficient approach employed by development teams to conceive, create, and deliver top-notch software within a defined time and budget constraint.
On the other hand, GeeksforGeeks defined it as a well-structured and systematic process employed to conceive, craft, and test good quality software.
Drawing from these perspectives, I’ll interpret the Software Development Life Cycle as a systematic approach employed by development teams to plan, design, build, and thoroughly test software and its related products.
Phases Involved in Software Development Lifecycle
A typical Software Development Life Cycle run through the following stages:
· Planning
· Requirement gathering and analysis
· Designing the product architecture
· Development
· Product testing and integration
· Deployment and maintenance of products
Planning
This is the beginning of the cycle, where project goals, objectives, requirements, and budget are discussed. Inputs are collected from various stakeholders who have a vested interest in the project. The team at this stage determines the feasibility of the project and how they can implement it with minimum risk.
Requirements Gathering and Analysis
All the requirements for the project are specified. The different goals and objectives outlined in the planning stage are collated into clear requirements for the development team. The team uses the collected data to create a formal working document known as a Software Requirement Specification (SRS) document. After this document has been reviewed and approved by stakeholders, it serves as a guide throughout the designing and development process.
Designing the Product Architecture
During this stage, the Software Requirement Specification (SRS) document is translated into design designers create and test several designs and ideas before selecting the final prototype to the team an idea of what the product will look like, and make changes, without having to write code.
Development
The development phase divides tasks in the project into modules and assigns them to the different programmers in the team. In this phase, the software requirements outlined in the project are translated into code, using the chosen programming language. This phase is usually the longest phase of the Software Development Life Cycle Process.
Product Testing and Deployment
At this stage, several tests like unit testing, acceptance testing, integration testing, etc. are carried out to ensure the product solves the needs outlined in the requirements. The Quality Assurance team usually does this. The developers fix any bug reported by the QA team, and the product is tested again, till the software is free of bugs. After passing through this rigorous process, the product is ready for deployment.
Maintenance
This phase ensures the software continues to run as it is intended to. In this stage, the team resolves customer issues, fix bugs, monitor the performance of the software, and identifies new ways to improve the user experience.
The SDLC process may restart to release an update to the software.
Conclusion
By following this systematic journey through planning, design, development, testing, deployment, and maintenance, development teams can deliver high-quality software that meets user needs and adheres to project constraints.
