A Survey of the Various Software Development Life Cycles
David Banh, Chris Bengtson, Bryan Flemming, Kurt Gallagher, Curtis Kobelski and Sarah Wise

2004-2005
One of the purposes of our project is to study the various theories on software development.

Waterfall Model

Iterative Model

The Iterative Model allows for the The Waterfall Model is one of the programmers
to focus attention on each most popular models to use for aspiring individual 
sub-element of the project. or new managers. One of its distinctive Programmers 
can develop, improve and traits is requiring that each step of the test these 
elements separately. process be finished before moving on to However, project 
managers and lead the next step. This allows for strict programmers must 
carefully watch the deadlines to be set. However, this entire project to 
maintain compatibility model prevents deep introspective or between the 
various elements. One review of the final product. major advantage of this 
model is how much testing and improvement is possible in a small amount of time.

Chaos Model
The Chaos Model is a combination of all the above models and is often built upon
one of the previously described models. However, as the name suggests, it 
contains structure and is better suited to a situation where the demands are 
constantly changing and not well defined on the outset. The Chaos Model involves
specifically Spiral Model dealing with each component as projects crop up The 
Spiral Model is most adapted through a miniature towards large and complicated 
projects. version of one of It works best when the requirements another model. 
The are well-defined at the onset. Another most preferred advantage of the 
Spiral Model is that it model to be used in allows prototypes to be developed 
conjunction with the quickly and the entire project be Chaos Model is the 
aborted if deemed too risky or waterfall Model. unfeasible.