This term is defined in the 3rd and the 4th edition of the PMBOK.
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Discretionary Dependency The strength of the project schedule is based on the definition of the activities, deliverables, estimation of effort and durations,...
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Dependency Determination Dependencies are defined as relationships among tasks that determine the sequence in which project management activities need to be performed. ...
External Dependency Dependencies are logical relationships between project activities. The dependencies of tasks mean that you cannot proceed to another task if...