Application Development Life Cycle – Programmers Valley Pvt Ltd

Software Development Process

Development Life Cycle

ProgValley will take you through every stage of the software development process (SDLC) – from a business analysis stage through UX/UI and application development to deployment and ongoing support.

Software Development Process

Application Development Life Cycle Explained

Phase 1: Application requirement analysis

The requirement collection and business is the first stage in the web and mobile application development process. It is performed by the senior team of business analysts, technical architects and project managers together with all the business stakeholders and domain experts in the industry.

Scope definition of the entire project
Planning for the quality assurance requirements
Definition of anticipated issues, opportunities
Recognition of the risks involved
Timeline definition

Phase 2: Feasibility study

When the requirement analysis phase is done the next step is to define and document software needs in the 'Software Requirement Specification' ('SRS') document. It has everything which ought to be structured and created during the application development life cycle.
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There are main five types of feasibilities checks:

Economic
Legal
Operation
Technical
Schedule

Phase 3: Design

Based on the SRS document the team prepares the system and software design to define the whole IT system architecture. This design phase will be a base for the next coding phase.

There are two types of design documents that are developed:

High-Level Design (HLD)

Brief description of each module and its functionality
Dependencies between modules
Database tables & their main elements
Architecture diagrams
Technology details

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Low-Level Design(LLD)

Functional modules logic
Detailed database tables
Complete interface detail
Complete modules input and outputs

Phase 4: Coding

The next phase is coding itself - the longest phase of the software development life cycle.

Peculiarities of the phase:

Developers should follow some predified coding guidelines.
The whole development is divided into tasks for specific modules development.

Phase 5: Testing

Once some part of the software coding is complete, it is sent for testing and the QA team starts testing the functionality to verify that the application works following the requirements.

The process is the following:

QA team finds some issues;
QA team sends them to the dev team;
Dev deam fixes the issues;
QA team rechecks the functionality.

Phase 6: Deployment

Once the software is developed and fully tested, the final deployments process is launched.

QA team checks the software on the production environment.

Phase 7: Maintenance

After the release, the application continues its cycle following 3 possible ways:

Bug fixing
Software upgrade
Enhancement with new features

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