Generating Network Messages

For each activity LN carries out the following checks:

• If the project is a subproject, LN checks that the earliest start date of an activity is not before the start date of the subproject.
• The desired start date for an activity must lie between the earliest and latest start date.
• On the basis of the progress of the preceding activities, LN checks whether the activity can start. During this process, it signals whether the previous activities are before or behind schedule.
• LN checks that the actual start date does not lie before the earliest (computed) start date or after the latest planned start date of the activity.
• If the project is a subproject, LN checks that the earliest finish date of an activity does not lie AFTER the completion date of the subproject.
• The desired finish date for an activity must lie between the earliest and latest finish date.
• LN checks that the computed finish date of the activity does not lie AFTER the latest planned finish date.
• LN checks that the actual finish date does not lie before the earliest (computed) finish date or after the latest planned finish date of the activity.