| ActualStart
|
:
|
The date on which a work task is actually started.
Note: The scheduled start date must be greater than or equal to the earliest start date. No constraint
is applied to the actual start date with respect to the scheduled start date since a work task may be
started than had originally been scheduled if circumstances allow.
|
| EarlyStart
|
:
|
The earliest date on which a work task can be started.
|
| LateStart
|
:
|
The latest date on which a work task can be started.
|
| ScheduleStart
|
:
|
The date on which a work task is scheduled to be started.
Note: The scheduled start date must be greater than or equal to the earliest start date.
|
| ActualFinish
|
:
|
The date on which a work task is actually finished.
|
| EarlyFinish
|
:
|
The earliest date on which a work task can be finished.
|
| LateFinish
|
:
|
The latest date on which a work task can be finished.
|
| ScheduleFinish
|
:
|
The date on which a work task is scheduled to be finished.
Note: The scheduled finish date must be greater than or equal to the earliest finish date.
|
| ScheduleDuration
|
:
|
The amount of time which is scheduled for completion of a work task.
Note: Scheduled Duration may be calculated as the time from scheduled start date to scheduled finish
date.
|
| ActualDuration
|
:
|
The actual duration of the process that attaches the time control data.
|
| RemainingTime
|
:
|
The amount of time remaining to complete a work task.
Note: The time remaining in which to complete a work task may be determined both for tasks which have
not yet started and those which have. Remaining time for a task not yet started has the same value as
the scheduled duration. For a work task already started, remaining time is calculated as the difference
between the scheduled finish and the point of analysis.
|
| FreeFloat
|
:
|
The amount of time during which the start or finish of a work task may be varied without any effect on
the overall programme of work.
|
| TotalFloat
|
:
|
The difference between the duration available to carry out a work task and the scheduled duration of
the task.
Note: Total Float time may be calculated as being the difference between the scheduled duration of a
work task and the available duration from earliest start to latest finish. Float time may be either positive,
zero or negative. Where it is zero or negative, the task becomes critical.
|
| IsCritical
|
:
|
A flag which identifies whether a scheduled task is a critical item within the programme.
Note: A work task becomes critical when the float time becomes zero or negative.
|
| StatusTime
|
:
|
The date or time at which the status of the tasks within the schedule is analyzed.
|
| StartFloat
|
:
|
The difference between the late start and early start of a work schedule element. Start float measures
how long an activity's start can be delayed and still not have an impact on the overall duration of a
schedule.
|
| FinishFloat
|
:
|
The difference between the late finish and early finish of a work schedule element. Finish float measures
how long an activity's finish can be delayed and still not have an impact on the overall duration of
a schedule.
|
| Completion
|
:
|
The extent of completion expressed as a ratio or percentage.
|
| ScheduleTimeControlAssigned
|
:
|
The assigned schedule time control in the relationship.
|
