Exam 1 - Definitions Flashcards
(47 cards)
A task or process to be accomplished in a set period of time, working towards longer project goal.
Activity
Ordered link between two activities representing the order of execution.
Activity Relationship
Four types of activity relationship;
FS - Finish to Start (MOST COMMON)
SS - Start to Start
FF - Finish to Finish
SF - Start to Finish
Activity that is on critical path.
Critical Activity
It is sequence of network activities which add up to longest overall duration, determine shortest time possible to complete project.
Critical Path
First step in CPM scheduling algorithm calculates each activity’s early start and early finish start.
Forward Pass
Calculated earliest date for activities on the network, find latest start and finish dates/float.
Backward Pass
An algorithm for scheduling a set of project activities. It is commonly used in conjunction with the program evaluation and review technique.
Critical Path Analysis
A chart where activities are presented by bars. Bars length = Activity duration
Bar Chart
Project modeling technique for scheduling a set of project activities. Developed in 1950’s and aims to build a model of project that contains;
- list of activities
- time (duration) that each activity will take to complete.
- logical and points such as milestones
Critical Path Method (CPM )Scheduling
Time based activity chart in which a series of horizontal lines shows amount of work done or production completed in certain periods of time in relation to what was planned
Gantt Chart
Earliest time an activity can start within target
Early Start
Earliest time an activity can finish within target
Early Finish
Latest possible activity must finish
Late Finish
Latest possible activity must start
Late Start
Amount of time an activity in a project network can be delayed wihtout causing delay to project.
Float
Difference between the finish date of the last activity on critical path
Total Float
Amount of time that spans from competition of one previously scheduled activity and extends to point which next scheduled activity is set to begin.
Free Float
An activity that determines start date and finish date of a following activity
Predecessor
Task whose start/end date is controlled by the predecessor
Successor
Schedule delay, successor activity will be delayed with respect to predecessor activity.
Lag
Example; A lag or delay such as putting 5 days for concrete because cannot stand or work on concrete for 5 days after pour.
Positive Lag
Drag an item back
Negative Lag
Logic error where activity attempts to start prior to a preceding activity.
Loop
