Project Management Glossary: A

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Acceptance decisions: decisions that determine if the products or services produced as part of the project will be accepted or rejected.

Activity: an element of work, normally found on the WBS, that has an expected duration, cost, and resource requirements; also called task.

Activity definition: identifying the specific activities that the project team members and stakeholders must perform to produce the project deliverables.

Activity duration estimating: estimating the number of work periods that are needed to complete individual activities.

Activity sequencing: identifying and documenting the relationships between project activities.

Activity-on-arrow (AOA) or arrow diagramming method (ADM): a network diagramming technique in which activities are represented by arrows and connected at points called nodes to illustrate the sequence of activities.

Actual cost (AC): the total of direct and indirect costs incurred in accomplishing work on an activity during a given period, formerly called the actual cost of work performed (ACWP).

Administrative closure: generating, gathering, and disseminating information to formalize phase or project completion.

Analogous estimates: a cost estimating technique that uses the actual cost of a previous, similar project as the basis br estimating the cost of the current project, also called top-down estimates

Analogy approach: creating a WBS by using a similar project’s WBS as a starting point.

Appraisal cost: the cost of evaluating processes and their outputs to ensure that a project is error-free or within an acceptable error range.

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