Sunday, June 30, 2013

Agile Model

Agile model is an alternative to traditional project management, typically used in software development. It helps teams respond to unpredictability through incremental, iterative work cadences, known as sprints. Agile model are an alternative to waterfall, or traditional sequential development.
In agile model project is divided into various Sprints, each sprint contains Highest-Priority Requirements. Time period for SPRINT typically 2-4 weeks, in agile model, daily Scrum meetings with team to share status and potential issue, each Sprint is release to customer.

 

Advantages of Agile model:
·         Customer satisfaction by rapid, continuous delivery of useful software.
·         People and interactions are emphasized rather than process and tools. Customers, developers and testers constantly interact with each other.
·         Working software is delivered frequently (weeks rather than months).
·         Face-to-face conversation is the best form of communication.
·         Close daily cooperation between business people and developers.
·         Continuous attention to technical excellence and good design.
·         Regular adaptation to changing circumstances.
·         Even late changes in requirements are welcomed.




Disadvantages of Agile model:
·      In case of some software deliverables, especially the large ones, it is difficult to assess the effort required at the beginning of the software development life cycle.
·         There is lack of emphasis on necessary designing and documentation.
·         The project can easily get taken off track if the customer representative is not clear what final outcome that they want.
·         Only senior programmers are capable of taking the kind of decisions required during the development process. Hence it has no place for newbie programmers, unless combined with experienced resources.