All of the following are true about developing a project plan EXCEPT:
The Work Breakdown Structure relates the elements of work to be accomplished to each other and to the end product
A Network Diagram is a directional graph consisting of activity nodes and connections to demonstrate the dependency relations between these activities for a complete project.
The cost estimation and budget planning are extremely important in the project design process.
Trade-offs between time and cost often need to be considered
The plan must be fixed and cannot change