Scheduling Quiz Flashcards
Activity
A single element or single item of work.
Activity Duration Time
The time required to complete a single activity. It may be expressed in any convenient time unit such as minutes, hours, working days, calendar days etc.
Bar Chart
Form of schedule presentation in which activities and their duration’s are plotted on a horizontal time line. Probably the most frequently used form of schedule in the construction industry.
Calendar Day
Any day of the year including working days, weekends or holidays.
Cash Flow Projection
An analysis of the cash income and cash disbursement requirements for a project.
Constraint
A non-working activity that restricts the start and finish of other activities (arrival of spring weather so that site work may start).
Critical Path
The longest (in terms of time) path or sequence of activities from start to finish of a network diagram. An activity is critical if it has zero float, and must start and finish on time in order not to affect the total duration of a project.
Early Finish Time
Earliest time an activity may finish without affecting the early start of any following activities. It is equal to the early start time plus the duration of the activity.
Early Start Time
Earliest time an activity may start without interfering with the preceding activity(s). Calculated as the highest total of all times coming into an activity on the “forward pass” through a network diagram.
Free Float
The amount of time an activity may be delayed without affecting any following activity(s). It is calculated as the difference between the early finish of an activity and the earliest of the early start of any following activity.
Late Finish Time
Latest time an activity may finish without affecting the late start time of any following activities. It is equal to the late start time plus the duration of an activity.
Late Start Time
Latest time an activity may start and be completed without affecting any subsequent activities. Calculated as the lowest total of all times coming into an activity on the “backward pass” through a network diagram.
Manning Chart
A histogram depicting the manpower requirements for a project.
Network Diagram
A diagram used to depict activities and their logical interrelationships. Network diagrams are usually associated with CPM schedules.
Pictorial Schedule
Schedule in which the key dates for major operations (floor pours, precast installation) are shown against a pictorial presentation of the project.