Information Technology Project Management Lab Work 3
Predecessor
Predecessor is the relationship between tasks/activities in a project, which means that if one task/activity experiences a time change, then automatically the other tasks/activities will also change accordingly.
Relationship Between Tasks
There are 4 types of relationships between tasks in Microsoft Project and in project management in general:
- FS: Finish to Start ==> Task ‘2’ can start after task ‘1’ is completed.
- FF: Finish to Finish ==> Tasks ‘1’ and ‘2’ finish simultaneously.
- SS: Start to Start ==> Tasks ‘1’ and ‘2’ start simultaneously.
- SF: Start to Finish ==> Task ‘1’ can only finish when task ‘2’ has started.
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Photo by Al Khwarizmi on Instagram
Lag & Lead Time
In the execution of a project, there is sometimes a time gap between one task and the next, which can be in the form of a time gap or overlap. For example, the casting of the floor with ceramic installation cannot be done directly because it is not possible to immediately install ceramic after casting. Therefore, a time gap is needed between casting and ceramic installation.
Example case: Task A has a duration of 8 days, Task B has a duration of 4 days.
- Lag Time
The time gap between Task A and Task B. For example, if Task B starts 3 days after Task A is completed, then in the Predecessor column of Task B, we fill in “1FS+3” (1 is the row position of Task A in Microsoft Project, FS for Finish to Start notation, +3 is to place the time gap between Task A and B in this case means 3 days).
[{"url":"/assets/images/lab-work/Information-Technology-Project-Management/2.png","alt":"Relation on Task","title":""}]
Photo by Al Khwarizmi on Instagram
- Lead Time
Overlap time between Task A and Task B. For example, if Task B starts 2 days before Task A is completed, then in the Predecessor column of Task B, we fill in “1FS-3” (-3 is the notation for overlapping 3 days, or the completion date of Task A minus 3 days).
[{"url":"/assets/images/lab-work/Information-Technology-Project-Management/3.png","alt":"Relation on Task","title":""}]
Photo by Al Khwarizmi on Instagram
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