The software development life cycle (SDLC) is a series of phases that help in providing a common understanding of the software building process. The process of SDLC starts when you set to launch the project till it finishes. You cannot find a single SDLC model; rather, it exists in groups with their distinct features. The first SDLC model was “waterfall,” which played various roles ranging from web application development to medical software. Be it any type of software development lifecycle models; there are basic steps that all of them follow. Here is a guide with all the types and the involved processes.
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Types of Software Development Lifecycle Models
The main types of software development lifecycle models include:-
Waterfall Model
Requirements – design – execution – testing – release
V-Shaped Model
Planning – requirements- architecture – detailed design – implementation – unit testing – integration testing – system and acceptance testing – maintenance
Evolutionary Prototyping Model
Two subcategories include:-
Incremental prototyping and extreme prototyping
Spiral Method (SDM)
It is the combination of the features of the prototyping and waterfall model.
Iterative and Incremental Method
It consists of mini waterfalls or mini V-Shaped models.
Agile development
Product backlog grooming – planning – sprint backlog – daily scrum – sprint – a valuable product
Basic Stages of SDLM Model
In this section, you’ll learn about the basic stages that all the SDLM models undergo, be it of any category.
Stage 1: Planning and Requirement Analysis
The first SDLM stage is planning and requirement analysis. In this stage, the stakeholders involved in the process discuss the requirements for the final product. As a set goal for the stage, one needs a detailed definition of the systems that they require. These include all the tasks and implementation of all the requirements.
Stage 2: Designing Project Architecture
In stage 2 of the software development lifecycle models, the developers get their hand in designing the architecture. In this stage, the stakeholders discuss all the technical questions. Here you’ll find technologies used in the project, time frames, and budget.
Stage 3: Development and Programming
In stage three, development and programming takes place. Here, the programmers use source cord writing to follow up with previously defined requirements. The other adjustments done include the development of the user interface of the program. The four sub-stages in this stage include:-
- Algorithm development
- Source code writing
- Compilation
- Testing and debugging
Stage 4: Testing
In the fourth stage, there is the testing and the debugging process. That is, in this stage, the programmers detect all the code flaws that he must have missed during the development. Then, the developers fix them, and the final testing takes place for the detection and removal of all the critical issues.
Stage 5: Deployment
After the final testing, the last stage in any SDLM cycle is deployment. In this stage, the finalization of the program takes place, and the platform launches for the end-users.
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