The following are the most commonly used…I expect there will be some observations regarding #s 1 & 2 … This is not a comprehensive list:
1. Critical activities (shown in the critical path, includes all delayed works).
2. Longest path (activities which apart from possible delay are also responsible for the maximum estimated duration to complete).
3. Comparison of current progress against previous (to determine just how much has been done, or not, since last update … period performance may be used here).
4. Earned value v/s planned value – variance and trend.
5. Look ahead plan (short duration future plan based on current situation).