| A | B |
|---|
| Free float | The amount of time that a specific activity can be delayed without affecting the early start time of any immediately following activities (successors). |
| Total float | The amount of time an activity can be delayed without delaying the overall project completion time. It is the difference between the late start and early start |
| Project management | The process of planning |
| Activity | A specific task or set of tasks that need to be completed as part of the project. |
| Milestone | An important event or achievement that marks the completion of a phase or set of activities in a project. |
| Node | A point at which one or more activities start or finish. |
| Predecessor activity | An activity that must be completed before another activity can begin. |
| Successor activity | An activity that cannot begin until one or more predecessor activities are completed. |
| Duration | The length of time required to complete an activity. |
| Earliest start time (EST) | The earliest time an activity can start |
| Latest finish time (LFT) | The latest an activity can conclude without delaying the entire project. |
| Critical path | The sequence of stages determining the minimum time needed for an operation; it is the longest path through the project with the least amount of slack. |
| Network diagram | A visual representation of the project's activities and their interdependencies. |
| Forward pass | The process of moving through the network diagram from start to finish to determine the early start and early finish times for each activity. |
| Backward pass | The process of moving backward through the network diagram to determine the late start and late finish times for each activity. |
| Float | Also known as slack; it's the amount of time that a task in a project network can be delayed without causing a delay to subsequent tasks or the project completion time. |
| Lead time | The time it takes to complete an activity or process from start to finish. |
| Lag time | A delay between the start or finish of two linked activities. |
| Dependency | A relationship between two activities where one relies on the other to start or finish. |
