Over the past decade general development practices have drastically changed across many an industry, and it has particularly evolved in the IT sector. These days’ businesses are opting to use “Agile” methodology over the classic “Waterfall” process that we are more than familiar with. But what exactly is agile development, and why are companies thriving on this type ofmethodology?
First of all let’s go back to the beginning to why agile came about in the first place. Its manifestation came from the need to perfect the development process, after too many projects were failing during production. Professionals in the field felt that there must be an easier method of development, than the typical waterfall method that derived from the manufacturing industry. Agile became a new method that could allow experts to revisit the different stages of development at any point in time.
As an insight….
By implementing Agile methodology meant there was a specific type of Rapid Application Development. But what is the difference between Waterfall and Agile?
The Waterfall model is a sequential (non-iterative) design process, in which progress is seen as flowing steadily downwards (like a waterfall).The waterfall model maintains that one should move to a phase only when its preceding phase is reviewed and verified.
The phases of the Waterfall model includes:
1. System Engineering
4. Coding or Development
Taking a step forward & then taking steps backwards is hard, and can make changes prohibitively costly.
Agile methodology is around leveraging Iterative processes to ensure you have the focus to get your product ready.
Its four key values are around:
• People rather than processes
• Product over documentation
• Working together over Admin Paper Work
• Flexibility and agility for changes during project work
There is also a sub type of Agile development that is often used which is referred to as Scrum Agile. The Scrum process consists of Planning, a Sprint cycle which is a block of work, and the eventual closure.Scrum is based on the principles and values of The Agile Manifesto (http://agilemanifesto.org/principles.html),and has three roles:
So Scrum in effect is around the input of planning & high level design, followed by Scrum Cycle or Cycles depending on the project, till the point your product is ready for the market.
Now you know the difference between both Waterfall and Agile methodology, let’s have a look at some of the positives and negatives of both.
So as you can see although Agile has a few negative factors, it is still highly favourable for companies in the IT industry around the globe. With Agile in place you can expect to deliver rapid application development, with a solid B2C relationship, which in turn will safeguard the future of your business!