Project Management Question of the Week

During the execution of a project, the client requests a change to the scope.  The project manager evaluates the changes impact and looks for alternatives for its implementation.  He later sends a report to the client informing about the changes impacts to the project's constraints.  What are the main constraints of the project?

• Scope, time, and cost
• Scope, time, cost, and quality
• Scope, quality, and cost
• Scope, time, cost, quality, resources, and risks