Incremental process model in software engineering

1. INCREMENT
AL PROCESS
MODEL
POOJA GORSERA

2. DEFINATION
In incremental model the whole requirement is divided
into various builds.
Each module (independent units) passes through the
requirements, design, implementation and testing phases.
The incremental build model is a method of software
development where the product is designed.
Implemented and tested incrementally until the product is
finished.

3. DEFINATION
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.
Whole
requireme
nt
Build1 Build2 Build3

6. ADVANTAGES OF INCREMENTAL MODEL:
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.
Generates working software quickly and early during

7. DISADVANTAGES OF INCREMENTAL MODEL:
Needs good planning and design.
Needs a clear and complete definition of whole system
before it can be broken down and built incrementally.
Total cost is higher than waterfall.

8. WHEN TO USE THE INCREMENTAL MODEL:
Mostly such model is used in web applications and
product based companies.
This model can be used when the requirements of the
complete sysyem 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. INCREMENTAL VS ITERATIVE MODLE
INCREMENTAL MEANS:
 It writes part one.
 It writes part two.
 It writes part three, until the book is
finished.
ITERATIVE MEANS:
 It writes loads of stuff that is a
complete mess,
 It go throwing out the irrelevant,
expanding on the important bits, and
sorting out the structure.
 It goes through it again now it can start
to see the shape of it, sorting it some
more.
 It goes through it yet again,etc, intil it’s
goodenough!

10. COMPARISION

11. THANK YOU FOR WATCHING