We follow the Software Development Life Cycle (SDLC) process to develop, maintain, replace and alter or enhance specific software. Below are the various stages of the SDLC process:
- Planning & Requirements Analysis – analysis of requirements with inputs from the customer and domain experts in the industry. This information is then used to plan the basic project approach and to conduct product feasibility study in the economical, operational and technical areas.
- Defining Requirements – Once the requirement analysis is done the next step is to clearly define and document the product requirements and get them approved from the customer. This is done through a Software Requirement Specification (SRS) document which consists of all the product requirements to be designed and developed during the project life cycle.
- Designing the Product Architecture – SRS is the reference for product architects to come out with the best architecture for the product to be developed. Based on the requirements specified in SRS, usually more than one design approach for the product architecture is proposed and documented in a Design Document Specification (DDS).
This DDS is reviewed by all the important stakeholders and based on various parameters as risk assessment, product robustness, design modularity, budget and time constraints, the best design approach is selected for the product.
- Building or Developing the Product – In this stage of SDLC the actual development starts and the product is built. The programming code is generated as per DDS during this stage. If the design is performed in a detailed and organized manner, code generation can be accomplished without much hassle.
- Testing – This stage is usually a subset of all the stages as in the modern SDLC models, the testing activities are mostly involved in all the stages of SDLC. However, this stage refers to the testing only stage of the product where product defects are reported, tracked, fixed and retested, until the product reaches the quality standards defined in the SRS.
- Deployment and Maintenance – Once the product is tested and ready to be deployed it is released formally. Sometimes product deployment happens in stages as per the business strategy of the organization. The product may first be released in a limited segment and tested in the real business environment (UAT- User acceptance testing).
Then based on the feedback, the product may be released as it is or with suggested enhancements in the targeting market segment. After the product is released in the market, its maintenance is done for the existing customer base.