Health Checks in detail

DCMA Checks

 

MetricWhat it MeasuresExtra DescriptionActivities included
Missing Logic

Percentage (%) of activities missing logical dependencies, i.e. without any predecessors or successors, or both.


 

This metric identifies activities with missing logic links. It helps identify how well or poorly the schedule is linked together. All activities should have at least one predecessor and one successor associated with it. Failure to do so will impact the quality of results derived from a time analysis as well as a risk analysis



 

Milestones

Task/resource dependent activities




 

Leads

Percentage (%) of relationships that have negative lag

 

 

Lags are a scheduled delay between activities. It is important to identify lags in the schedule as they can manipulate float and constrain a schedule. You can replace a lag with a task to avoid the problems that lags can create.

Milestones

Task/resource dependent activities



 

LagsPercentage (%) of relationships that have positive lagLags are a scheduled delay between activities. It is important to identify lags in the schedule as they can manipulate float and constrain a schedule. You can replace a lag with a task to avoid the problems that lags can create.

Milestones

Task/resource dependent activities


 

Relationship Types

Percentage (%)  of relationships that are NOT of Finish-Start type.

 


 

Milestones

Task/resource dependent activities

Hard Constraints


 

Number of activities with hard or two-way constraints.


 

Hard constraints override logical relationships and thereby prevent activities from being scheduled according to the logic. Consider using soft constraints if absolutely necessary.

Task/resource dependent activities

Milestones

Level of Effort activities

WBS summary activities


 

High FloatPercentage (%) of activities with Total Float greater 44 days

Milestones

Task/resource dependent activities

Negative Float

Percentage (%) of activities with total float less than 0 working days


 

Milestones

Task/resource dependent activities

High Duration Percentage (%) of Activities with duration greater than 10% of the total remaining project duration

Milestones

Task/resource dependent activities


 

Invalid Dates

Percentage (%)  of activities that have invalid dates


 

Activities that have

  •  an actual start/finish date beyond the data date or
  • have forecast start and forecast finish dates before the data date. 


 

Milestones

Task/resource dependent activities

Missing Resources

Percentage (%) of activities that have either unassigned resources, or assigned resources without a budget.


 

 

Task/resource dependent activities


 

Missed Tasks




 

Percentage (%) of activities that were planned to be completed by the data date in the baseline, but are (i) either still not actualised or (ii) completed but not on time.



 

 

Completed

Task/resource dependent activities


 

Critical Path TestIf I introduce 1 day of delay in the critical path does the project get delayed by one day?  

Milestones

Task/resource dependent activities

Critical Path Length Index


 

Measure of efficiency of current project progress. 

 


 

Milestones

Task/resource dependent activities

Baseline Execution Index

 


 

Measure how many activities were finished compared to what was planned on the baseline


 

Milestones

Task/resource dependent activities


 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

N&L Checks

MetricWhat it MeasuresExtra DescriptionActivities included
Logic Density

 

Average number of logic links per activity


 

Milestones

Completed 

Task/resource dependent activities

Isolated Networks

 


 

Percentage (%) of activities that are neither isolated, nor members of the largest component in the network.

 


 

Milestones

Task/resource dependent activities


 

High Minimum Free FloatPercentage (%) of Activities with free float greater than 44 days 

Milestones

Task/resource dependent activities



 

Zero Duration TasksPercentage (%) of Activities with duration of 0

Milestones

Task/resource dependent activities


 

Circular Logical Dependencies



 

Percentage (%) of activities involved in circular logical dependencies within the schedue

 

 

Milestones

Task/resource dependent activities


 

Obsolete Activities

Percentage (%) of activities marked as obsolete, deleted, retired, canceled or superseded in either the Activity Name or the containing WBS name and any of its higher-level WBS.

Task/resource dependent activities

Milestones

Level of Effort activities

WBS summary activities

Completed activities




 

Out-Of-Sequence



 

Percentage (%) of out-of-sequence activities, i.e. with a logical inconsistency in their dates.

 


 

Task/resource dependent activities

Milestones

Level of Effort activities

WBS summary activities

Completed activities

Duplicate Activity IDPercentage (%) of activities with a duplicate Activity ID, i.e. pairs/triplets of activities in different WBS/projects sharing the same Activity ID.

Task/resource dependent activities

Milestones

Level of Effort activities

WBS summary activities

Completed activities

Critical ActivitiesPercentage (%) of critical activities, i.e. with a total float less than or equal to zero

Milestones

Task/resource dependent activities

Open StartPercentage (%) of activities whose relationship to all their predecessors are exclusively of Finish-to-Finish or Start-to-Finish type. 

Milestones

Task/resource dependent activities

Open FinishPercentage (%) of activities whose relationship to all their predecessors are exclusively of Finish-to-Finish or Start-to-Finish types 

Milestones

Task/resource dependent activities

As Late As Possible Constraints



 

Percentage (%) of activities with an As-Late-As-Possible constraint.

 

 



 

Milestones

Task/resource dependent activities

Riding Data Date

Percentage (%) of activities whose start date is the same as the data date.

 

 

 

Milestones

Task/resource dependent activities



 

Constraints not on milestonesPercentage (%) of non-milestone activities with a hard/soft constraint. 

Milestones

Task/resource dependent activities

High Duration Critical ActivitiesPercentage  (%) of critical activities with a duration greater than 44 working days 

Milestones

Task/resource dependent activities

Planning Accuracy IndexA metric telling you how accurate your plan is compared to the baseie
 
    
No PredecessorsPercentage (%) of activities without any predecessors.  
No succesorsPercentage (%) of activities without any successors.  
Percentage of milestonesPercentage (%) of activities that are milestones.  
ContraintsPercentage (%) of activities with soft constraints, i.e. of type Must Start/End On or Before, Must Start/End On or After, As Late As Possible.  
SF relationshipsPercentage (%) of logical dependencies which are Start-To-Finish (SF).  
FF relationshipsPercentage (%) of logical dependencies which are Finish-To-Finish (FF).  
SS relationshipsPercentage (%) of logical dependencies which are Start-To-Start (SS).  
FF with predecessorPercentage (%) of activities with at least one Finish-To-Finish (FF) logical dependency with predecessor(s).  
SF with predecessorPercentage (%) of activities with at least one Start-To-Finish (SF) logical dependency with predecessor(s).  
SS with predecessorsPercentage (%) of activities with at least one Start-To-Start (SS) logical dependency with predecessor(s).  
SS lag greater than the predecessor durationPercentage (%) of logical dependencies with Start-To-Start (SS) lag greater than the duration of the predecessor.  
Isolated activitiesPercentage (%) of activities with neither predecessor or successor.