SDLC: What is Software Development Life Cycle?

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What is SDLC ?

When does SDLC Starts ?

When a person or a company when they want to start a new project they should follow SDLC

Why we follow SDLC ?

  • If we dont follow SDLC then chances are there we will not get to know how many engineers are required to work on the project.
  • We will not get to know how much cast to be invested on the project.
  • There will be no supporting requirement documents.
  • Chances are there we might delay in releasing software to the customer that is a reason we should follow SDLC

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Types of SDLC

  • Waterfall Model
  • Spiral Model
  • V & V Model
  • Prototype Model
  • Hybrid Model
  • Derived Model
  • Agile Model

1.Waterfall Model

  • Waterfall Model is a step-by-step procedure or standard procedure to develop a new software.
  • Waterfall Model is a basic model/Traditional model/Sequential model.
Waterfall Model - SDLC
Waterfall Model – SDLC

2. Spiral Model

  • Spiral Model is an Incremental model or Iterative model.
  • Spiral Model is a step-by-step procedure or standard procedure to develop a new software.
  • In order to overcome drawbacks of waterfall model we go for Spiral model.
  • Spiral Model will be mainly used when there is a dependency between modules.

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3. V & V Model (Verification & Validation)

  • V & V Model called as Victory model.
  • V & V Model is a step-by-step procedure or standard procedure to develop a new software.
  • In V & V Model each and every stages are tested.
  • It is also known as verification and validation model.
  • Execution of phases happens in a sequential manner.
  • V model links development activities to their corresponding later testing activities.
  • It is an extension of the waterfall model.
  • This is a highly disciplined model.
  • There are two main process.
  1. Verification
  2. Validation
V and V Model
V and V Model – SDLC
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4. Prototype Model

It is a dummy model which is prepared by web designers or content developers where in they convert text format into Image format by using Web Html, paint software, Adobe Photoshop or picasa.

5. Derived Model

Here we take a basic model / single model and change it according to the business requirements and company standards called as Derived Model or Customized Model.

What is SDLC?

6. Hybrid Model

The process of combining or merging more than one model into a single model is called as Hybrid Model.

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7. Agile Model

The Agile Model is an updated version of the Spiral Model.

Stages of SDLC

Stages of SDLC
SDLC: What is Software Development Life Cycle? 1

Limitations of SDLC

  • It is difficult to estimate the actual cost of entire project.
  • It may lead to an increase in the cost of software development, especially if the Customerrequirements are not understood properly.
  • It consists of specific requirements and phases that need to be completed, which increase the time taken in soiftware development.
  • Sometimes the input of users may be limited.
  • The execution of SDLC phases depends on factors, such as customer requirements and the availability of funds.

Frequently Asked Question on SDLC

Is SDLC a software or system?

The software development life cycle, often shortened to the acronym SDLC, consists of standardised phases a software development team works through when developing a new product.

What is the most important step in SDLC?

Testing. The testing phase of the SDLC is one of the most important. It is impossible to deliver quality software without testing.

Is SDLC better than Agile?

SDLC provides a systematic approach to building software towards successful product deliverables within the timelines, whereas Agile has faster development approach and speeds up the development process in an effective and efficient manner.

What are the advantages of SDLC model?

Benefits of Software Development Life Cycle

Having overarching control over software development process. Improving resource management and cost-effectiveness. Gives teams a clear action plan. Improves cooperation between participants.

What is SDLC process in interview?

SDLC is abbreviated for Software Development Life Cycle. It is a series of steps that provides a well-defined model to develop and manage the lifecycle of low-cost, high-quality software in the shortest possible time. The objective of SDLC is to create subpar software that exceeds the customer demands and expectations.

What is a weakness of SDLC?

Agile SDLC model

One of its disadvantages is that it is difficult to estimate resources and development costs due to the lack of clear r

Final Words

SDLC is abbreviated for Software Development Life Cycle. It is a series of steps that provides a well-defined model to develop and manage the lifecycle of low-cost, high-quality software in the shortest possible time. The objective of SDLC is to create subpar software that exceeds the customer demands and expectations.

An aspiring Software Tester formed an obsession with Blogging, SEO, DIgital Marketing and helping job seekers to find Jobs in Software Testing Field. Also I'm working as a Full-Time employee in Fintech IT Industry.

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