Refining estimates may be necessary for a number of reasons. For example, people working on prototype development needing time to interact with the design engineers after the design is completed is a good example of

Normal conditions not applying.

Explanation:

Project management can be defined as the process of designing, planning, developing, leading and execution of a project plan or activities using a set of skills, tools, knowledge, techniques and experience to achieve the set goals and objectives of creating a unique product or service. Generally, projects are considered to be temporary because they usually have a start-time and an end-time to complete, execute or implement the project plan.

The fundamentals of Project Management includes;

1. Project initiation

2. Project planning

3. Project execution

4. Monitoring and controlling of the project

5. Adapting and closure of project.

Refining estimates may be necessary for a number of reasons. For example, people working on prototype development needing time to interact with the design engineers after the design is completed is a good example of normal conditions not applying because it follows the discretion of the manager or team involved.