Editing IFC - Industry Foundation Classes/IFC concepts/IFC sequence concepts
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[[File:Ifc-concept-sequence-sequence-ratio.png]] | [[File:Ifc-concept-sequence-sequence-ratio.png]] | ||
− | A lag time between two tasks may be expressed as a ratio instead of an absolute duration. If taken as a ratio, the lag duration is determined by the ratio multiplied by the scheduled duration of the predecessor task | + | A lag time between two tasks may be expressed as a ratio instead of an absolute duration. If taken as a ratio, the lag duration is determined by the ratio multiplied by the scheduled duration of the predecessor task. |
Note: In the case of a lag time specified as an absolute duration, the worse of two possible calendars is chosen. In the case of a ratio, the duration of the predecessor task is explicitly nominated. Therefore, we also assume that the calendar of the predecessor task is the only calendar that applies in this scenario. | Note: In the case of a lag time specified as an absolute duration, the worse of two possible calendars is chosen. In the case of a ratio, the duration of the predecessor task is explicitly nominated. Therefore, we also assume that the calendar of the predecessor task is the only calendar that applies in this scenario. |