What is SDLC software development lifecycle ?

1️⃣Analysis

In this phase, designers begin by identifying, gathering and defining current customers’ problems, requirements, requests and expectations related to the software product. This involves collecting comments from the various parties concerned, including customers, vendors, industry professionals and programmers. It gives the teams working below the necessary foresight and context to deliver and produce their software solutions.

2️⃣ Planning

At this stage, the team determines the budget and resources needed for the fulfilment of the requirements analyzed without forgetting to check the risks incurred. The team provides also the plans needed to overcome these risks. This way, the feasibility of the project is well studied. As such, the team takes upon itself to think about the best way to to carry out the projet successfully.

3️⃣ Design

During this step, the transformation of the software specifications into a design plan of is launched. The latter is called design specification.Designers make software design decisions regarding the architecture of the software solution. This involves the creation of design documents, coding guidelines and tools discussion, practices, execution environments or frameworks that help the team meet software specifications and requirements and the objectives defined during the requirements gathering phase. During this step, you need to have a working plan allowing stakeholder comments to be incorporated into these documents, after they have been collected.

4️⃣ Software Development

At this stage of SDLC, development team builds software  solutions  on the basis of design decisions made. Technical managers and project managers are responsible for unlocking the process, decision-making and technical assistance. This stage of work ends once that the teams have packaged and built their code.

5️⃣Testing

At this stage, a software implementation is packaged and tested to ensure quality. Tests are carried out to ensure that the solutions implemented meet quality and performance standards. This may involve either unit testing,integration and end-to-end testing, verification or validation as well as error reporting or identification or defects in the software solution.

6️⃣ Deployment

This means deploying the software in the production environment. Users will then be able to start using it.

7️⃣Maintenance

The goal of this SDLC stage is ensuring that needs continue to be met and that the system continues to operate according to the specifications mentioned in the first phase. After the deployment phase, as well as the use in the first place by customers, this is what happens:

• Correction of errors reported due to unforeseen and untested circumstances.
• Upgrading the functionalities of this application for a better adaptation to software recent versions.
• New options are being added.