Do We Have Enough Time to Get There?
A Performance Measurement Baseline can be used to determine if you have everything you need to complete your project, including money, time, and resources. Here is an overview of what it looks like, along with some key related activities and desired outcomes to strengthen its credibility.
In 5 Questions Project Manager's Must Ask, the Five Immutable principles project leaders and teams must address to succeed were described. This article explores the third question, "Do We Have Enough to Get There?"
Once you've determined, "What Does Done Look Like?" for the project and described this "Done" in units of measure meaningful to the decision makers – Effectiveness and Performance are the basis of any description – we then need to know "How Do We Get There?"
With these two understandings, the next question becomes, "Do We Have Enough of Everything to Get There?" By everything, we mean time, money, resources, facilities, support, knowledge — everything and anything that is needed by the project for its success.
So how do we know what we need? The answer to that comes from the Performance Measurement Baseline (PMB). The PMB is a time-phased budget plan for accomplishing work, against which contract performance is measured. It includes the budgets assigned to scheduled control accounts and the applicable indirect budgets. What this means is we know what work we need to perform, in what order we need to perform it, what we have budgeted for performing it, and, most important, what the outcomes of that work are and how they are connected to the answers to the first two questions of our series.
When we look at the PMB, there are three baselines:
The PMB is the primary assessment document for assuring the credibility of a program plan. The PMB is the baseline of the cost, schedule, and deliverables for each Work Package in the plan.
Constructing the PMB requires knowledge of the business requirements, skill in developing the Work Packages that produce the deliverables for these requirements, and discipline in assembling the cost, schedule, and relationships between the Work Packages. It is the discipline that requires the most focus for the planners and program controls staff. Without this discipline, the development of a credible baseline is simply not possible.
In the end, the project manager must know in intimate detail each work effort, its deliverables and resource requirements, the performance measurement criteria, and the dependencies that form the critical path through the program schedule.
The concept of a Deliverable is at the core of the Performance Measurement Baseline. It is the deliverables that the customer purchased, not the work effort to produce the deliverables.
The details of the three baselines are:
The Technical Performance Baseline is the requirements flow down and traceability map for each deliverable in the program.
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The Schedule Performance Baseline is the sequence of Work Packages and Planning Packages that produce the products or services from the program. This baseline contains the schedule margin derived from the Monte Carlo simulation described in DID 81650.
The Cost Performance Baseline is the authorized, time-phased, budget-at-completion (BAC) used to measure, monitor, and control the overall cost performance of the program. This budget is held in the cost accounting system and used to connect the work effort with the planned budget for each deliverable.
Building the PMB and determining if we have enough of everything we need is a straightforward process at first glance. The following activities and resulting outcomes increase the probability that the PMB will credibly represent the project’s needs, the work activities that must be performed, and the measure of performance of those work activities.
With the Performance Measurement Baseline, the project manager has the beginnings of the raw materials for managing the project. But more is needed. For success, the project manager must:
With the Performance Measurement Baseline established, the next principle in successful project management is the discovery of all the reasons the project will have trouble.
In our domain, Earned Value Management is the basis of assessing the Performance Measurement baseline starting with the Schedule Performance Index and Cost Performance Index which are calculated with Physical Percent Complete. P%C is calculated by measuring one of several attributes of the delivered outcomes compared to the planned attributes – Measures of Effectiveness, Measures of Performance, many …ilities.
The passage of time and consumption of money is NOT a measure of P%C. Here's some discussion on this topic of the use and misuse of EVM KPIs.
President at ProjectFlightDeck.com
2yFor the sake of completeness: Earned Schedule's Schedule Performance Index for time and associated Estimate at Complete for time and its statistical variance offer accurate measures over the full project life cycle. In addition, ES project recovery metrics such as Window of Opportunity and Probability of Recovery directly answer your initial question--they tell whether or not there's enough time left. Finally, all of the measurements are done within the context of Earned Value Management.