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PMI Glossary Definitions


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The act of formally receiving or acknowledging something and regarding it as being true, sound, suitable, or complete.
See accept
Acceptance Criteria
Those criteria, including performance requirements and essential conditions, which must be met before project deliverables are accepted.
Acquire Project Team [Process]
The process of obtaining the human resources needed to complete the project.
A component of work performed during the course of a project. See also schedule activity
Activity Attributes [Outputs/Inputs]
Multiple attributes associated with each schedule activity that can be included within the activity list. Activity attributes include activity codes, predecessor activities, successor activities, logical relationships, leads and lags, resource requirements, imposed dates, constraints, and assuptions.
Activity Code
One or more numerical or text values that identify characteristics of the work or in some way categorize the schedule activity that allows filtering and ordering of activities within reports
Activity Definitions [Process]
The process of indentifying the specific schedule activities that need to be performed to produce the various project deliverables.
Activity Description (AD)
A short phrase or label for each schedule activity used in conjunction with an activity idenifier that project schedule activity from other schedule activities. The activity description normally describes the scope of work of the schedule activity.
Activity Duration
The time in calendar units between the start and finish of a schedule activity. See also actual duration, original duration, and remaining duration
Activity Duration Estimating [Process]
The process of estimating the number of work periods that will be needed to complete individual schedule activities.
Activity Identifier
A short unique numeric or text identification assigned to each schedule activity to differentiate that project activity* from other activities. Typically unique within any one project schedule network diagram
Activity List [Output/Input]
A documented tabulation of schedule activities that shows the activity description, activity identifier, and a sufficiently detailed scope of work description so project team members understand what work is to be performed.
Activity-on-Arrow (AOA)
See arrow diagramming method
Activity-on-Node (AON)
See precedence diagramming method

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