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The precedence diagramming method (PDM) is a technique used for constructing a schedule model in which activities are represented by nodes and are graphically linked by one or more logical relationships to show the sequence in which the activities are to be performed. PDM includes four types of dependencies or logical relationships. A predecessor activity is an activity that logically comes before a dependent activity in a schedule. A successor activity is a dependent activity that logically comes after another activity in a schedule. These relationships are defined below and are illustrated in Figure 6.9:
In PDM, FS is the most commonly used type of precedence relationship. The SF relationship is very rarely used, but is included to present a complete list of the PDM relationship types. Two activities can have two logical relationships at the same time (for example, SS and FF). Multiple relationships between the same activities are not recommended, so a decision has to be made to select the relationship with the highest impact. Closed loops are also not recommended in logical relationships. Recommended textbook solutions Human Resource Management15th EditionJohn David Jackson, Patricia Meglich, Robert Mathis, Sean Valentine 249 solutions
Information Technology Project Management: Providing Measurable Organizational Value5th EditionJack T. Marchewka 346 solutions Service Management: Operations, Strategy, and Information Technology7th EditionJames Fitzsimmons, Mona Fitzsimmons 103 solutions
Service Management: Operations, Strategy, and Information Technology7th EditionJames Fitzsimmons, Mona Fitzsimmons 103 solutions Recommended textbook solutionsHuman Resource Management15th EditionJohn David Jackson, Patricia Meglich, Robert Mathis, Sean Valentine 249 solutions
Information Technology Project Management: Providing Measurable Organizational Value5th EditionJack T. Marchewka 346 solutions
Human Resource Management15th EditionJohn David Jackson, Patricia Meglich, Robert Mathis, Sean Valentine 249 solutions
Operations Management: Sustainability and Supply Chain Management12th EditionBarry Render, Chuck Munson, Jay Heizer 1,698 solutions What is the relationship between a predecessor activity and a successor activity?A predecessor is an activity whose start or finish controls start or finish of another activity. And a successor is an activity whose start or finish is controlled by start or finish of another activity.
During which relationship is the from activity unable start until the to activity is started a finish to start b start to start C finish to finish d start to finish?Start To Finish is a logical relationship (or dependency) in which a successor activity cannot finish until its predecessor activity has started.
What are the 4 types of activity relationships?There are four possible activity relationships, which are defined in the Project Management Institute's "bible of project management" — The Project Management Body of Knowledge (PMBOK®). The relationships are Finish-to-Start, Start-to-Start, Finish-to-Finish and Start-to-Finish.
What are logical relationships in project management?The concept of a logical relationship in reference to the project management scheme refers specifically to an established and existing reliance or dependency between two particular elements of the project.
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Is a logical relationship in which a successor activity Cannot start until a predecessor activity has started?
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