The document discusses the incremental software development model. It defines the incremental model as one where the whole software requirement is divided into multiple builds. Each build or module independently goes through the requirements, design, implementation, and testing phases. Subsequent builds then add new functionality to the system until the full product is completed. The incremental model is best for projects where major requirements are known but some details may evolve over time, and there is a need to release portions of the software early to the market. Advantages include developing working software quickly, flexibility to change scope, and lower initial costs. Disadvantages include needing good upfront planning and design work as well as potentially higher total costs than traditional models.

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2. Software project Management
 Submitted To: Mam Amnah
 Submitted By: Hafiz M Irfan
 Registration No. BSSE-B5-015
 Dated : 10 October, 2018
 Topic Incremental Model

3. Incremental Model
Definition :
In incremental model the whole requirement is
divided into various builds. Each module
(independent units) passes through the
requirements, design, implementation and
testing phases.

4. The incremental build model is a method of
software development where the product is
designed, implemented and tested
incrementally until the product is finished.
Whole requirement= Build1+Build2+bulid3

5. Each subsequent(coming after something in
time) release of the module adds function to
the previous release. The process continues till
the complete system is achieved.

6. when we work incrementally we are adding
piece by piece but expect that each piece is
fully finished. Thus keep on adding the pieces
until it’s complete.
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7. Incremental Development Model

8. When to use the Incremental model:
This model can be used when the
requirements of the complete system are
clearly defined and understood. Major
requirements must be defined; however,
some details can evolve with time.
There is a need to get a product to the
market early.

9. Advantages of Incremental model
Generates working software quickly and early
during the software life cycle. This model is more
flexible less costly to change scope and
requirements. It is easier to test and debug during a
smaller iteration. In this model customer can
respond to each built. Lowers initial delivery cost.
Easier to manage risk because risky pieces are
identified and handled during it’s iteration.

10. Disadvantages of Incremental model
Needs good planning and design. Needs a
clear and complete definition of the whole
system before it can be broken down and
built incrementally. Total cost is higher than
waterfall.

11. Thanks