Scheduling & Three Types of Tasks : MS Project

If you are new Project Manager or new to using MS Project,  when putting workplan together one of the question you may ask is – what type of task should I choose?

MS Project has 3 options –

  1. Fixed Duration;
  2. Fixed Units;
  3. Fixed Work. 

The choice will decide how MS Project schedules the work, in other words, which one of three remains fixed and other two change.  To make things easier to remember, Duration is in days, Work is in hours and Units are resources.  And formula to keep in mind is ‘wud’ i.e.   w(ork) = u(nit) * d(uration).

Summary table – Left green column is task type in MS Project; top red column is what we change; blue colums are rescheduled by MS project.

 

Change Duration

Change Unit

Change Work

Fixed Duration

 

Reschedules Work

Reschedules Units

Fixed Units

Reschedules Work

 

Reschedules Duration

Fixed Work

Reschedules Units

Reschedules Duration

 

Basically, 1day duration has 8 hrs of work with 1 unit or resource working 100%.

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