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Actual Finish Date

The point in time that work actually ended on an activity. (Note: in
some application areas, the activity is considered “finished” when work is “substantially
complete.”)
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Actual Start Date

Category: Knowledge base > Dictionary

The point in time that work actually started on an activity.
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A separately planned quantity used to allow for future situations which
may be planned for only in part (sometimes called “known unknowns”). For example,
rework is certain, the amount of rework is not. Contingency reserves may involve
cost, schedule, or both. Contingency reserves are intended to reduce the impact
of missing cost or schedule objectives.
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Reserve

Category: Knowledge base > Dictionary

A provision in the project plan to mitigate cost and/or schedule risk. Often used with
a modifier (e.g., management reserve, contingency reserve) to provide further detail
on what types of risk are meant to be mitigated. The specific meaning of the modified
term varies by application area.
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Precedence Relationship

Category: Knowledge base > Dictionary

The term used in the precedence diagramming method for a logical
relationship. In current usage, however, precedence relationship, logical relationship,
and dependency are widely used interchangeably regardless of the diagramming
method in use.
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