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Advantages and Disadvantages of SDLC

The process for creating and deploying software systems is called the Software Development Life Cycle (SDLC). The SDLC is divided into six separate phases: planning, analysis, design, implementation, testing, and maintenance.

The life cycle of software development will be discussed in this article. The word "life cycle" is one that we are all familiar with and refers to the sequence of actions or phases that give rise to anything. In other terms, a software development life cycle is the sequence of activities that go into creating software. Building effective and high-quality software quickly is the goal of the software development life cycle.

Advantages and disadvantages of SDLC

Users will be able to create a product that is incredibly good if the phases and processes of the software development life cycle are adhered to precisely and properly. The documentation created as part of the software development life cycle gives developers a clear concept of what they need to build and what the client's requirements are, while also giving clients a sense of what they are receiving and allowing them to make any necessary changes.

This leads to the construction of a product that will unquestionably surpass those of your rivals and encourage your clients to collaborate with you on additional tasks. Here are some advantages of the software development life cycle:

  • Efficient with regard to costs
  • Efficacious in terms of time
  • Enhances teamwork and coordination, defines suitable roles for employees and increases workplace transparency.
  • Minimal danger when the project is implemented

The following list of software development life cycle drawbacks isillustrated:

  • The project may take longer and cost more if the planning is not done properly.
  • Correcting problems in code can occasionally take a long time and cause deadlines to be missed if there are many of them.

The team adopting this development process will determine the benefits and cons of software development life cycles. The team will be able to create good software if they are effective and diligent and adhere to the development model's rules and parameters, but if they are not coordinated and do not adhere to the method's guidelines, the final output will not satisfy the clients.

Software Development Life Cycle Models

In all honesty, there are a lot of different models for the software development life cycle. Several of the most popular models will be covered in this article. Here are the models in question:

1. Waterfall Model

Probably the oldest and most well-known model. This model is built like a waterfall, as the name would imply. This model's flow can be compared to a waterfall, which moves from higher to lower points before arriving at its destination. The other step's input is the output of the first step. Up until the software is developed, this process continues. Its simplicity is what distinguishes this model from others.

Advantages and Disadvantages of SDLC


  • This paradigm is straightforward and easy to understand. Because of this, teamwork is incredibly simple and everyone is on the same page.
  • With this model, deadlines are met with ease. This is because the team has previously been given precise instructions and no time is lost trying to figure out how to proceed.
  • Since this type of architecture involves a lot of paperwork, it is better suited for larger projects with greater teams.


  • Making adjustments to the product at a later stage in the project is practically difficult, which is one of this model's main drawbacks. This is because the steps are tied to one another in a sequential process, thus changing anything would be exceedingly difficult.
  • The inability of the stakeholders and customers to utilise or view the product right away is another drawback of this approach. The customer will have to wait a few months before they can view the goods, which occasionally causes them to feel uncomfortable or disappointed.
  • As the product cannot be altered at a later stage of the development process, there is also no space for error. Therefore, extensive investigation is required.
  • A paradigm like this is not appropriate for small teams because it necessitates excessive research, which raises the cost.

2. Iterative Model

This type of model doesn't require a lot of planning. This concept necessitates a method where the entire project is broken down into smaller components. Iterations are each individual little piece. After breaking the project down into iterations, each iteration goes through all 7 phases of the software development life cycle. The nicest thing about this kind of model is that after one iteration, a tiny portion of the project is finished and may be released to the market. Customers and other stakeholders benefit greatly from this since they may test the product on the market and are involved throughout the entire product development process.

Advantages and Disadvantages of SDLC


  • It is feasible to make minor adjustments to the project.
  • There is not much planning necessary for this process; not as much preparation as is necessary for other models.
  • It is simpler to deploy and analyse software in the market when little pieces of it are released right away.
  • The team can see the results of their work and the project's development can be followed in real time, which will keep them motivated.
  • It is appropriate for larger projects with huge crews.


  • Making adjustments to a project that is already underway is not recommended because it is a very sensitive procedure that involves a lot of management. Better planning is suggested.
  • Lack of preparation will result in less-than-specific requirements, which may lead to coding errors.
  • For this project, highly qualified personnel are needed.

3. Spiral Model

This model deviates greatly from the norm. It is a hybrid model that combines elements of the waterfall approach and the iterative model. The intriguing feature of this model is that it enables us to evaluate the product at each stage, ensuring the creation of a top-notch final result. This model's software development life cycle differs slightly from the cycles for the other models.

Advantages and Disadvantages of SDLC


  • It enables the developers to easily add new functionality to the software that was before impossible to do.
  • We are able to receive feedback following each spiral, which is a highly advantageous feature that allows us to continuously enhance our offering.
  • This methodology enables us to launch the software sooner, which benefits both your consumers, who can see the product in action and your team, who can see their offering succeeding in the marketplace.
  • Tasks can be ranked in order of importance based on market demands. We may focus on the iteration that the market demands, for instance, and finish the other iterations later.


  • In order to manage these spirals, highly qualified managerial personnel are needed. If management is poor, there is a chance that the spiral will continue forever.
  • For small projects, this model is not appropriate.
  • Due to the complexity of this process, there is an increased risk of error.

4. V-shaped SDLC Model

A variation on the traditional waterfall approach, the V-shaped SDLC model is based on a separate test stage for each development stage. This is an extremely rigid model where the subsequent step is only begun after the preceding one. This model is also referred to as "validation and verification." To ensure that the conversion to the following stage is feasible, each step has a current process control.

Advantages and Disadvantages of SDLC


  • The V-shaped model's stages each produce exact outcomes, making it simple to regulate.
  • The early steps involve testing and verification.
  • Excellent for small projects with dependable and well-defined criteria.
  • V-shaped model drawbacks


  • Unwillingness to bend.
  • For little jobs, this is a bad choice.
  • Large hazards, relatively.

5. Agile SDLC Model

The customer can view the outcome of each development iteration in the agile process and determine whether he is satisfied with it or not. One benefit of the agile software development life cycle paradigm is this. One of its drawbacks is that it is challenging to predict the resources and development costs in the absence of well-specified needs. One application of the agile paradigm in practice is extreme programming. Sprints, which are a component of the Scrum methodology, form the core of this concept.

Advantages and Disadvantages of SDLC


  • To ensure competitiveness, changes to functional requirements are incorporated into the development process.
  • Each iteration of the project is brief and open.
  • The flexible transition process reduces risks.
  • Rapid release of the initial product version.


  • Permanent alterations make it difficult to calculate the total cost.
  • The team should be extremely professional and client-focused.
  • There could be conflicts between new requirements and the current architecture.
  • There is a chance that the project will take longer than anticipated given all the repairs and revisions.

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