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This lesson focuses on the define activities process. This process is the focus on activities that are required to create the deliverables for the project. The activities list describes what needs to be done in the project and are commonly referred to as tasks. These need to be broken down to duration of between 4-80 hours. This lesson also talks about the Milestones List which states of the reference points of the project. [toggle_content title="Transcript"] The next process in time management is defining activities. Define activities...the focus is on the activities that are required to create the deliverables for the project. It's not who, it's not when, the activities...it's focused on defining what the activities are. The process creates the milestone list and the activity list. Key inputs to the process are the schedule management plan, the scope baseline, enterprise environmental factors and organizational process assets. The project manager will use decomposition, expert judgement and rolling wave planning to develop the milestone list and the activity list. What is the activity list? This is one of your outputs. It describes what needs to be done in the project, it also has activities. The activities are commonly referred to as tasks in the regular roll. But according to PMI, tasks are called activities so just think of tasks as activities. A rule of thumb is activities should be broken down between four and 80 hours. I've also heard this as 8 or 80 hours but 4 and 80 hours is pretty accurate. This allows you to break it down to a level, which isn't too far into the [weeks] but not too far away where you don't know what is going on. It is basically half a day or two normal workweeks. A milestone list states the milestone of the project. Milestones are reference points in the project and when you enter milestones into the WBS, you enter them as zero hours. Your inputs are the schedule management plan, the scope baseline, enterprise environmental factors, and organizational process assets. The schedule management plan is the first to be created, which is given the guidelines on how you're going do this. The scope baseline consists of three documents. If you remember from the scope knowledge area, it is the WBS, your WBS dictionary and your scope statement. Big thing to memorize so I am repeating it. Your tools are expert judgement, decomposition; so with decomposition you are breaking that task down as far as you can until it is understandable. Rolling wave...what is that? If you think of an ocean of waves, rolling wave is you know what's current. You are going to put a lot of details into what is coming up next because you know that. What you don't know is in the future. You are going to use a control account and say I don't know exactly what is going to happen in the future but I know it is going to take one month approximately. As you get further to it, you put more information to that control account. [/toggle_content]