In: Operations Management
What schedule-predecessor types are the most common? Have you used any? Share an experience.
Dependencies are the relationships among duties which assess the
order where movements must be carried out. There are 4 (4)
varieties of dependency relationships.
Forms of dependencies
Finish to Start
Predecessor have to conclude before Successor can start. [Land must
be purchased before road building can start]
start to start
Predecessor have got to begin earlier than Successor can start.
[Road excavating must start before Asphalt can be laid]
finish to finish
Predecessor ought to conclude before Successor can conclude.
[Laying Asphalt must be complete before line painting can be
completed]
Start to Finish
Predecessor have got to before Successor can conclude. [Road
excavating must start before line painting can be completed]
Dependencies are the relationships of the previous tasks to the
succeeding duties. Tasks could have multiple preceding duties and
more than one succeeding duties. The most common dependency
relationship is a conclude-to-begin relationship. Undertaking P
(predecessor) have got to be completed earlier than task S
(successor) can begin. The least usual relationship is the
begin-to-finish relationship. Mission insight, mission
administration software, helps all 4 dependency relationships.
The chart above shows how a Product Development Activity List may look after the project team determines the task relationships. In our example, only finish-to-start relationships were used.
It is always easier to arrange all tasks in terms of a finish-to-start relationship and an 'as soon as possible' constraint. This dependency type is the easiest relationship for others to understand and will usually result in a longer than normal schedule. This gives the schedule more 'slack.' You may then utilize the other relationships as ways to shrink the duration of the overall schedule. If you use finish-to-start and as soon as possible, you will be able to change the schedule in Project Insight, project management software, with just a couple of mouse clicks.