i will create a short topic for Prototyping what is prototyping? process of software prototyping

3. The process in which developers create a
model of the actual software.
The intention behind creating this model
is to get actual requirements more
deeply from user.
Prototyping help a lot in getting the
feedback from the customer.

4. Diagram of Prototype model

5.  Initial requirement identification
 Prototype development
 Review
 Revise

6.  Rapid prototyping/throwaway: in this type we build
a prototype with very little efforts to get the requirements
from the customer after getting the requirement we
throwaway this prototype and start building the actual
software.
 Evolutionary prototyping : the prototype on the top
of which we can build the whole actual system

8.  Users are actively involved in the development
 Errors can be detected much earlier
 Quicker user feedback is available leading to better solutions.
 Missing functionality can be identified easily
 Confusing or difficult functions can be identified