DCMA 14 point schedule check – Negative Float

In our sixth article looking at the 14 point check we described how we checked High Float, in this post we are going to take a look at Negative Float.

The DCMA criteria states that no activities that are incomplete should have a float total of less than 0 working days.

Negative Float Check To check this is Primavera P6 we used the following steps:

Step 1. In the Project view add the Total Activities column and make a note of the Total Activities in the schedule.

Step 2. Create a new report using the Report Wizard, selecting Activities as it is activity data we require in the report. Add the Free Float column as we are looking to find out how many activities have a Negative Float value.

Step 3. Create a filter to show only the activities with a Float value of less than 0.

Step 4. Click through to type a report name, populate with the name then run the report. As we want the report in Excel select ASCII and ensure that the Text Qualifier is set to “. The report will open in Microsoft Excel, highlight the High Float numbers and make a note of the count.

Step 5. Divide the number of negative float activities by the total number of activities.

Any incomplete activities with float of less than 0 working days means the criteria has not been met and the schedule should be reviewed. The DCMA states a 0% threshold on negative float.

There are a further 13 checks prescribed by the DCMA which along with the Logic Check will be detailed out in further supporting documentation and video tutorials at http://www.myxacom.com where knowledge is no weight to carry.

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