To answer this question, we need to understand the different types of dependency relationships in project management.
The completion of a successor task being dependent on the initiation of its predecessor task implies a Start-to-Finish (SF) relationship. In an SF relationship, the successor task cannot start until the predecessor task has started.
Let's go through each option to understand why they are correct or incorrect:
Option A) FS - In a Finish-to-Start (FS) relationship, the successor task cannot start until the predecessor task has finished. This is the opposite of what is described in the question, so Option A is incorrect.
Option B) FF - In a Finish-to-Finish (FF) relationship, the predecessor and successor tasks must finish at the same time. This is not described in the question, so Option B is incorrect.
Option C) SS - In a Start-to-Start (SS) relationship, the predecessor and successor tasks must start at the same time. This is not described in the question, so Option C is incorrect.
Option D) SF - In a Start-to-Finish (SF) relationship, the successor task cannot finish until the predecessor task has started. This is exactly what is described in the question, so Option D is correct.
The correct answer is D) SF. This option is correct because it describes the relationship where the completion of a successor is dependent on the initiation of its predecessor.