Development of Customizations:

Development of Customization depends upon number of factors such as:
The size of the project
The complexity of:
a. The interfaces
b. The workflow
c. The functions
The availability of employees/users to work with the team to improve the customization at a given iteration.
Technical problems unrelated to the implementation that affect it.
d. This can be resolved by creating an independent environment for development, testing and eventually production.
Midstream workflow and rules changes for the customization necessitated by changing corporate business processes.
e. This is something that can be managed but will affect the timetable and the price.
The elasticity of the application is very important in the case of creation of the customized application.