Agile Model in Software Engineering

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Introduction

The Agile Model enables a project to quickly adapt to change requests. So, one of the aims of the Agile model is to facilitate a quick project completion. Agility is achieved by adapting the process to the project, removing activities that may not be essential for a specific project. Anything that takes up too much time and effort is avoided.

Agile development is a type of incremental model. It involves releasing small, incremental updates. Due to its speed and thorough testing, it’s great for time-sensitive projects.

Phases of Agile Model:

Following are the phases in the Agile model are as follows:

  1. Requirements gathering
  2. Design the requirements
  3. Construction/ iteration
  4. Testing/ Quality assurance
  5. Deployment
  6. Feedback
  1. Requirements gathering: In this phase, you should outline potential business opportunities and any accompanying requirements. This phase is where you can estimate the time and effort needed to build your project as well determine it’s technical and economic feasibility.
  2. Design the requirements: Further discussion with stakeholders will help you work out the requirements for your project. System diagrams are used to depict how a new feature will work and what its limitations will be.
  3. Construction/ iteration: When a team defines their product, they work to deploy a working project. The project goes through various stages of improvement, with simple and minimal functionality by the end.
  4. Testing:In the Quality Assurance phase, we examine the product and look for any bugs.
  5. Deployment: In this phase, the team release a product for the user’s work environment.

Use Agile model:

  • Changes can be implemented often, at a low cost, when using an agile process. The freedom to change during new iterations is important.
  • To implement a new feature the developers need to lose only the work of a few days, or even only hours, to roll back and implement it.
  • Using the agile development model, we need very little planning to start a project. An agile model assumes that the needs of the end user are ever changing, due to changes in business. We are able to make changes on-the-fly based on feedback from the client.
  • In order to keep scope of a project manageable, developers use AI to fix bugs in software by relying on creativity, rather than rote sequences. This allows stakeholders to work on the project piece by piece, making sure that important decisions aren’t made until better data or programs are available.

Advantages of Agile model:

  • Customer satisfaction through timely and consistent delivery of relevant software
  • The focus is on people as well as interaction instead of processes and instruments.
  • Clients, designers, and testers are continuously in contact.
  • Working software is generally provided (weeks rather than months).
  • The strongest mode of communication is facial expression interaction.
  • Close daily collaboration between owners and business executives.
  • Consistent focus on technical expertise and aesthetics.
  • Consistent adjustment to changing situations.
  • Even last-minute criteria adjustments are accepted.

Disadvantages of Agile model:

  • In some cases, especially with large software programs, it is difficult to estimate the time needed for development at the beginning of the development cycle.
  • There is lack of emphasis on necessary designing and documentation.
  • The customer’s expectations are often not made clear, causing their project to go off-track.
  • A higher-level programmer is the only kind capable of handling all of the decisions needed in the development process.

FAQs

Q1. What is Agile model in software engineering?

Agile process models allow software developers to break tasks into smaller iterations rather than focusing on long term planning. Agile process is based on iterative development.

Q2. When can agile model be used?

If you have a unclear product vision or features, agile allows stakeholders to adjust requirements and priorities on the go which can lead to a better product.

Q3. Who uses Agile methodology?

Apple, IBM, Microsoft and Procter & Gamble use a process called Agile to create results in fast, experimental and iterative manner.

Q4. What are the 6 scrum principles?

The six principles are:

Control over the empirical process. In Scrum, the empirical process is based on observation of hard evidence and experimentation rather than theory. …

  • Self-organization. …
  • Collaboration. …
  • Value-based prioritization. …
  • Time-boxing. …
  • Iterative development.

Q5. Is agile a framework or methodology?

Scrum is an interface to Agile’s values. In other words, Scrum provides a way for developers to take advantage of Agile’s philosophy and mind-set.

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