There you can find about definition of agile model.Working of agile model.You can also find where to use agile model.Examples of agile model is also given here.

1. what is agile model with example?
Agile modeling (am) is a methodology for modeling and documenting software systems base on best
practices. It is a collection of values and principles, that can be apply on an (agile) software development
project.
This methodology is more flexible than traditional modeling methods, making it a better fit in a fast
changing environment.Agile development model is also a type of Incremental model.Software is
developed in incremental, rapid cycles.
This results in small incremental releases with each release building on previous functionality.Each
release is thoroughly test to ensure software quality is maintain.It is use for time critical applications.
Extreme Programming (XP) is currently one of the most well known agile development life cycle model.
How It Works
It works by first admitting that the old “waterfall” method of software development leaves a lot to be
desire.The process of “plan, design, build, test, deliver,” works okay for making cars or buildings but not
as well for creating software systems.
In a business environment where hardware, demand, and competition are all swiftly-changing variables,
agile works by walking sthe fine line between too much process and not enough.
Agile model advantages and disadvantages:
Every thing have advantages and disadvantages,same is the case with agile methodology.
Advantages of Agile model:
• Time to time customer satisfaction,when continuous delivery of useful software.
• People and interactions are emphasize rather than process and tools.
• Customers, developers and testers constantly interact with each other.
• Working software is deliver frequently (weeks rather than months).
• Face-to-face conversation is the best form of communication.

2. • 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 welcome.
Disadvantages of Agile model:
In case of some software deliverables, especially the large ones, it is difficult to change
requirments.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. No place for new programmers unless combine with experienced resources.
When to use Agile model:
• When new changes are need to be implement.
• The freedom agile gives to change is very important.
• New changes can be implements at very little cost because of the frequency of new increments
that are produce.
• 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.
• Unlike the waterfall model in agile model very limit planning is requir to get start with the
project.
• Agile assumes that the end users’ needs are ever changing in a dynamic business and IT world.
• Changes can be discuss and features can be newly effect or remove base on feedback.
• This effectively gives the customer the finishing system they want or need.
• Both system developers and stakeholders alike, find they also get more freedom of time and
options.
Examples of Agile Methodology
The most popular and common examples are:

3. • Scrum.
• Extreme Programming (XP).
• Feature Driven Development (FDD)
• Dynamic Systems Development Method (DSDM).
• Adaptive Software Development (ASD).
• Crystal.
• Lean Software Development (LSD).
• Teams generally pick one or two methods. The most widely used methodologies are Scrum and
XP, which dovetail nicely.