| # Type of Activity WBS Element A type of activity usually used to break down the project scope into smaller pieces. You can define work for a work-break-down structure element. You can aggregate the costs from control accounts or work packages. You cannot book costs on this activity type. Control Account The only type of activity that can be linked to an organization breakdown structure. At this level functional responsibility for work and costs can be assigned. You can detail control accounts using work packages. Planning Package Planning packages are identified during planning to time phase major activities within a control account. You cannot have a bottom-up budget or book costs on this activity type. Work Package A type of activity. You can detail short-span jobs in work packages and use it for the execution of a project. Milestone An activity of zero duration that usually represents a significant event in the project. In many cases the completion of a phase or a major deliverable. Milestones can be used for the moment of invoicing and the calculation of earned value. |