Planning Fundamentals

What is the project schedule ?

It is an output which includes linked activities , milestones , durations and resources.
I t also contains delay between activities which defined as Lag
But the opposite of lag it called Lead ( Negative Lag )


Example :
Task B will start after 3 days from Task A finishing date


Now we will take a look for Leadin the above example : Task B & Task A have lead = 3days (another meaning Task A & Task B have -3 days Lag )

Dependency Relationships

Every schedule has many types of relationships between activities as following :

• Finish to Start: The successor task cannot start until predecessor task has been finished
• Start to Start : The successor task cannot start until predecessor task has been started
• Finish to Finish: The successor task cannot finish until predecessor task has been finished
• Start to Finish: The successor task cannot finish until predecessor task has been started