Define the project scope-what to accomplish in the project in terms of deliverables overall budget and time. Establish Project Priorities what is constraint in the project i.e., scope time or cost...

Define the project scope-what to accomplish in the project in terms of deliverables overall budget and time.
Establish Project Priorities what is constraint in the project i.e., scope time or cost
Creating the work breakdown structure - A hierarchial diagram of all the tasks and activites to accomplish in a project.