Glossary
Dependency Types
A dependency type defines the chronological order in which two activities relate to each other. There are four types:
- Finish-to-Start (FS): The successor starts when the predecessor finishes. This is the most common type.
- Start-to-Start (SS): Both activities begin at the same time.
- Finish-to-Finish (FF): Both activities end at the same time.
- Start-to-Finish (SF): The successor finishes when the predecessor begins. This type occurs rarely.
Dependency types are the basis for dependencies and thus for calculating the critical path. They can additionally be given a buffer or lead time.
