Defining Activities

The activity definition process is a further breakdown of the work package elements of the WBS. It docu­ments the specific activities needed to fulfill the deliverables detailed in the WBS. These activities are not the deliverables themselves but the individual units of work that must be completed to fulfill the deliverables. Activity definition uses everything we already know about the project to divide the work into activities that can be estimated. You might want to look at all the lessons learned from similar projects your company has done to get a good idea of what you need to do on the current one.

Expert judgment in the form of project team members with prior experience developing project scope statements and WBS can help you define activities. If you are asked to manage a project in a new domain, you might also use experts in that particular field to help define tasks so you can understand what activities are going to be involved. You may want to create an activity list and then have the expert review it and suggest changes. Alternatively, you could involve the expert from the very beginning and ask to have an activity definition conversation with him or her before even making your first draft of the list.

Sometimes you start a project without knowing a lot about the work that you’ll be doing later. Rolling-wave planning lets you plan and schedule only the portion that you know enough about to plan well. When you don’t know enough about a project, you can use placeholders for the unknown portions until you know more. These are extra items that are put at high levels in the WBS to allow you to plan for the unknown.

A Case Study

Susan and Steve have decided to tie the knot, but they don’t have much time to plan their wedding. They want the big day to be unforgettable. They want to invite many people and provide a great time. They’ve always dreamed of a June wedding, but it’s already January. Just thinking about all of the details involved is overwhelming. Susan has been dreaming of the big day since she was 12, but it seems that there’s so little time for all the tasks to be completed. When they were choosing the paper for the invitations, the couple realized that they needed help.

Much work has to be done before June. First, Sally figures out what work needs to be done. She starts to put together a to-do list:

• Invitations
• Flowers
• Wedding cake
• Dinner menu
• Band

Since many different people are involved in the making of the wedding, it takes much planning to coordinate all the work in the right order by the right people at the right time. Initially, Sally was worried that she didn’t have enough time to make sure that everything would be done properly. However, she knew that she had some powerful time management tools on her side when she took the job, and these tools would help her to synchronize all the required tasks.

To get started, Sally arranged all the activities in a work breakdown structure. The next exercise presents part of the WBS Sally made for the wedding.

WBS Exercise

Arrange the following activities into the WBS (Figure 10.1) to show how the work items decompose into activities.

• Shop for shoes
• Create guest list
• Have the tailoring and fitting done
• Shop for dress
• Find caterer
• Cater the wedding
• Wait for RSVPs
• Mail the invitations
• Finalize the menu
• Print the invitations
• Choose the bouquet

Solution to Exercise: