Software development methodologies play a important part of developing the software.Unfortunately due to lack of quantified data and comparisons among methodologies, selecting a software development method is more like joining a cult than a technical decision.Some methods work best for small applications and small teams; others work well for large systems and large teams; some work well for complex embedded applications; some work well for high-speed web development; some work well for high-security military applications. How is it possible to select the best methodology for specific projects? Is one methodology enough, or should companies utilize several based on the kinds of projects they need to develop?
This article will be devoted to the popular approaches in software development.
Here are the list of top software development methodologies :
1.Waterfall Method :
The Waterfall model is a sequential development approach, in which development is seen as flowing steadily downwards (like a waterfall) through several phases such as analysis, software requirements ,software design , testing , integration , deployment and maintenance. This method is linear and rigid in nature which makes it easy to understand. This method save significant amount of time.
2. Prototype Methodology :
The methodology allows developers to create only the prototype of the solution to demonstrate its functionality to the clients and make necessary modifications before developing the actual application. The best feature of this software development methodologies is that it solves many issues which often occur in other methods.This method significantly reduces the risk of failure, as potential risks can be identified in early stage and moderation steps can be taken quickly.
3.Agile Software Development Methodology :
Agile Software Development is used to design a disciplined software management process which also allows some frequent alteration in the development project. This is a type of methodology which needs one conceptual framework for undertaking various software engineering projects. It is used to minimize risk by developing software in short time boxes which are called iterations that generally last for one week to one month.This method has an adaptive approach.
4.Rapid Application Development :
Rapid application development is a condensed development process that produces a high quality system with low investment costs. It is an effective methodology to provide much quicker development and higher-quality results. The main objective of this methodology is to accelerate the entire software development process. The goal is easily achievable because it allows active user participation in the development process.This methodology encourages customer feedback which always provides improvement scope for any software development project.
5.Spiral Methodology :
The Spiral Model is a sophisticated model that focuses on early identification and reduction of project risks. In this software development methodology, developers start on a small scale then explores the risks involved in the project, makes a plan to handle the risks, and finally decides whether to take the next step of the project to do the next iteration of the spiral. The success of any Spiral Life cycle Model depends on the reliable, attentive, and knowledgeable management of the project. It has high amount of risk analysis.
The Scrum Development Methodology is suited for development projects that are rapidly changing or highly emergent requirements. Its model begins with a brief planning, meeting and concludes with a final review. This development methodology is used for speedy development of software which includes a series of iterations to create required software. It is an ideal methodology because it easily brings on track even the slowest progressing projects. It can be applied to nearly any project.
7.Extreme Programming Methodology :
Extreme Programming Methodology is also known as XP methodology and is used for creating software within a very unstable environment. It allows greater flexibility within the modeling process. The main goal of this XP model is to lower the cost of software requirements. It is quite common in the XP model that the cost of changing the requirements on later stage in the project can be very high. This method emphasis on customer involvement and is consistent with most modern development method .
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