This gives the schedule more 'slack.' You may then utilize the other relationships as ways to shrink the duration of the overall schedule. This dependency type is the easiest relationship for others to understand and will usually result in a longer than normal schedule. It is always easier to arrange all tasks in terms of a finish-to-start relationship and an 'as soon as possible' constraint. In our example, only finish-to-start relationships were used. The chart above shows how a Product Development Activity List may look after the project team determines the task relationships. Project Insight, project management software, supports all four dependency relationships. The least common relationship is the start-to-finish relationship. Task P (predecessor) must be finished before task S (successor) can start. The most common dependency relationship is a finish-to-start relationship. Tasks may have multiple preceding tasks and multiple succeeding tasks. ĭependencies are the relationships of the preceding tasks to the succeeding tasks. Predecessor must start before Successor can finish. Predecessor must finish before Successor can finish. Predecessor must start before Successor can start. Predecessor must finish before Successor can start. There are four (4) types of dependency relationships. Dependencies are the relationships among tasks which determine the order in which activities need to be performed.
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