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Table of contents
1.
Introduction
2.
Principles of Agile methodology
3.
Describe Agile Software Development?
4.
Roles in the agile method
5.
The era of the waterfall model
6.
Difference between Agile Model and Waterfall Model
6.1.
Agile Model
6.2.
Waterfall Model
7.
Frequently Asked Questions
8.
Key Takeaways
Last Updated: Mar 27, 2024

Agile method

Author devika varshney
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Introduction

Software testing is the method to check the errors or defaults in software whether it matches the expected output and checks the software's quality. This is done to reduce the mistakes, and quality can be increased and fulfill the specific requirements. It also means verification of application under test. Now we will see agile methodology. Throughout the project's software development lifecycle, agile methodology promotes focus on the continuous iteration of development and testing. Development and testing activities occur concurrently, unlike the waterfall model.

Principles of Agile methodology

  • The delivery of the valuable software should be early and continuous.
  • Better communication is essential to understand the requirements and discuss ideas during the software development process among the developers.
  • If development teams ignore quality for too long, the product's capacity to react to current consumer expectations weakens, and it becomes less flexible.
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Describe Agile Software Development?

Agile software development is the simplest for turning the vision from a business need to a software solution. The Agile term denotes software development approaches that rely on continuous planning, learning, improvement, teamwork, evolutionary development, and early delivery. Flexible responses to change are encouraged here.

Four fundamental values are emphasized in agile software development -

  • Individual and team interactions are preferred over processes and tools.
  • Comprehensive documentation is discarded while Working software is accepted.
  • Customer collaboration is more reliable than contract negotiation.
  • We go for responding to change rather than following a plan.

Roles in the agile method

An agile software development process begins with defining users, their needs, documenting problem statements, and their discussed solution with the expected output. Here we discuss the different roles, who perform an essential task in the development journey-

  • User

This process always begins with keeping in mind users and their needs. Nowadays, we go for user personas where we make profiles of different users differentiated according to their roles in the company for understanding the different types of needs and behavior.

  • Product owner

The product owner represents the users/ customers. This person elaborates the ideas and feedback to create the product vision software properly. These are short descriptions of user requirements. This person works with the development team to make the ideas proposed real.

The product owner breaks down the product vision into user stories for more clarity and a detailed view of user requirements. So that they can be solved quickly and precisely; furthermore, identify the constraints and acceptance criteria of the solution.

Product owners prioritize the user stories reviewed by the development team.

  • Software development team

The development team consists of a diverse group of people with different skills for different domain work to get the job done. the primary purpose is to deliver the working software that fulfills all the users' requirements on time. For that, the need-to-end functioning of the application needs to be completed by the development team.

The development team collaborates for developing the UI design of the software, now known as the prototype, business model, and database, after developing it is demoed. Frequent meetings are held to see the status of the project and the role of every development team member in the development process, taking into consideration the specified requirements.

This team includes designers, quality assurance (QA) engineers, analysts, depending on the type of software project.

The era of the waterfall model

This waterfall software development process would finally kick off coding, integration, and testing before an application was deemed production-ready. The whole process could easily take a couple of years.

Difference between Agile Model and Waterfall Model

These are the two different types of software development processes. Despite their differences in approach, both strategies might be effective at times, depending on the requirement and type of project.

Now we will go through the differences between the waterfall model and the agile model -

Agile Model

  • Incremental and iterative approaches are focused on the agile methodology for software designing.
  • Early and frequent opportunities are given to the customer to look at the product and suggest changes in the product according to the requirements.
  • As compared to the waterfall model, the agile model is unstructured.
  • This model can develop small products in less time. On the other hand, it is challenging to predict development time for large projects.
  • Halfway through, the software development errors can be resolved.
  • Each iteration has its testing phase. whenever new functions or logic are deployed, it enables the implementation of regression testing 
  • Testers and developers of software work together in this model.

Waterfall Model

  • The development of software proceeds in a logical sequence from beginning to end.
  • At the end itself, the product can be provided to the customers.
  • Because waterfall models are so plan-focused, they are more secure.
  • All types of projects can be developed with this software model.
  • The entire product is tested only in the end. The development team must restart the project from the beginning if a requirement error is discovered or adjustments must be made.
  • As separate parts are not fully functional, the testing is done only after the complete development of the software.
  • Testers and developers of software work separately in this model.

Must Read, Locators in Selenium

Frequently Asked Questions

  • What is software?

Software is a set of instructions that informs a computer how to operate. In contrast to hardware, this is the basis upon which the system is constructed and conducts the job.

  • What are agile frameworks? Also, name some agile frameworks.

Several agile frameworks give specifications on development methods and agile development techniques that are matched with a software development life cycle.

Scrum is the most extensively used agile framework which focuses on delivery cadence called a sprint and meeting structures like planning, commitment, etc.

Another agile framework is kanban.

  • What is extreme programming in agile development?

It is part of the agile development process and is helpful when the users' requirements change or are unsure about the system's functionality. It promotes frequent software releases and upgrades it according to the customers' evolving needs.

Key Takeaways

Don't come to a halt here. Check out our The Basics of Software Testing and Various Testing Methods | CN Blog. You can also check out the System Design Strategies & Important In Software Development-CN Blog blog. Check out more blogs, including types f software testing, security testing, etc., here. More blogs.

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