The purpose of the Construction Phase is to complete the detailed design of the required architectures (development, execution, and operations) and to build the application or system using the agreed-upon development environment and tools. Developers create the desired application using the design documents as their guide. The process map above depicts the activities required to complete the Construction Phase.
The key objectives for this phase are as follows:
Prepare and complete the detailed design for all portions of the system and the conversion effort
Create executable modules
Test individual modules ...