The VAC is a forecast of what the variance, specifically the Cost Variance (CV), will be upon the completion of the project. It is the size of the expected cost overrun or underrun. In many situations the project manager must request additional funding as early as possible, or at least report the potential for an overrun. The VAC represents the size of this … [Read more...]
The To-Complete Performance Index represents the efficiency level, specifically the CPI (Cost Performance Index) that will make the project finish on time. It can be a powerful indicator because it is generally easy to ascertain if your people will be as productive as the indicator tells you. There are two ways to calculate the TCPI: To achieve the original … [Read more...]
In earned value analysis, the Estimate At Completion, usually abbreviated EAC, is the estimate of the final project cost given the past performance of the project. Thus, it allows the project manager to see what the final project cost estimate is. The EAC is one of four calculations in the Earned Value Management which allow you to forecast the future performance of … [Read more...]
In earned value analysis, the Estimate To Complete, usually abbreviated ETC, is the expected remaining cost to complete the project. It is not the final overall project cost (that's the EAC), rather it is the expenditure from now to the end of the project. It does not include what has already been spent. Thus, it allows the project manager to compare the funding needs … [Read more...]
Earned Value Management is the secret to project success! If you are passionate about having projects finish on time, on schedule, and with all other project success criteria satisfied, you must learn how to use it. Earned Value Management is a project control technique used by project managers to keep projects on schedule and budget. Earned Value analysis gives the … [Read more...]
The Program Evaluation and Review Technique (PERT) is an important step in project scheduling. A PERT chart is a tool used to plan the execution of tasks within a project. PERT charts are a central part of any project management course. They are quick to draw and intuitive to use. How to Draw a PERT Chart There are two rules: Tasks (activities) are represented … [Read more...]
The real benefit of the earned value method is in the early warning signal it provides. In my previous life at a large engineering company, I saw many project managers get to a monthly billing cycle before they realized the project was behind, and even then they would rationalize it by deciding their project team was going to be more efficient in the next cycle. Suffice … [Read more...]
In 1986, the NASA Space Shuttle Challenger exploded spectacularly upon take-off in front of one of the largest live TV audiences in history (to that time). The investigation concluded that several tiny O-rings that sealed the rocket booster to the fuel supply failed. These O-rings were about 1 foot in diameter. Just like the tiny O-rings were able to bring down the … [Read more...]
I once experienced a project horror story whereby a piece of equipment was snowed in at a previous project, delaying the project by several weeks until a transport vehicle could get to the stranded machine. Since there are relatively few of these around, the project either had to wait or additional costs had to be incurred to procure another one. Managing these types … [Read more...]
Six Sigma was a powerful quality improvement system developed by Motorola that took the world by storm in the early 2000's with high profile adoptions by General Electric, Honeywell, and others. Lean was a manufacturing methodology originated by Toyota, which turned manufacturing on its head by focusing on minimizing idling products (inventory) rather than minimizing … [Read more...]
