In our twelfth article looking at the 14 point check we described how we used the Critical Path Test, in this post we are going to take a look at the Critical Path Length Index.
The DCMA criteria states that a Critical Path Index of 1 or above in favourable and below 1 is unfavorable.
Critical Path Length Index Check
To check this is Primavera P6 we used the following steps:
Step 1. Open the required project for analysis in Primavera P6 and make a note of the Total Float
Step 2. Select Group and Sort, select <None> in the grouping and filter on critical activities only.
Step 3. Go back into Grouping & Sort and select show grand totals. The Duration for the Critical Path is shown, document this down.
Step 4. Now we have the data we can apply the formula – CPLI = (Critical Path Length +/- Total Float ) / Critical Path Length
If the index is 1 or above then the criteria has been met, if below one then the schedule may require a review.
There are a further 13 checks prescribed by the DCMA which along with the Invalid Dates Check will be detailed out in further supporting documentation and video tutorials at http://www.myxacom.com where knowledge is no weight to carry.