Projects are by definition temporary, that is, they have a defined beginning and end. For this reason, the project schedule is almost always a major factor in project success. It also means that project stakeholders want to be updated on the status regularly, to ascertain whether the project is on track to complete on time. A project status report contains … [Read more...]
Because a project is defined as a temporary endeavor (PMBOK 1.1), deadlines are baked into the success criteria of all projects. Since all projects have a defined end point, the circumstances around this end point can result in project success or failure. Managing the project schedule can be one of the most formidable parts of project management. I've seen more … [Read more...]
Bottom up estimating is the project management technique of estimating individual tasks and then combining them into an overall project estimate. Often the individual project team members who will be performing the task provide the estimates, because they are in a better position to estimate a task that they will be working on. Types of Estimates Any of the three main … [Read more...]
A project manager that fails to allocate project resources is like a carpenter without a hammer. That's why estimating task resources is an integral step in project planning. It also happens to be one of the most fundamental aspects of project management, one of the steps that the project manager utilizes on a day to day basis. Types of Resources Each task on … [Read more...]
In yesterday's post we outlined the critical path method which is one of the professional project manager's techniques to ensuring project deadlines are met. Today we will walk through an example with a complete solution using MS Excel. Our example project is to build a new driveway. We will be hiring our friend, Jon, who is a concrete worker, and we will … [Read more...]
Earned Value is a method used by project managers to calculate the current project status and predict future project performance. In this post we will outline each earned value formula. Planned Value (PV) Earned Value (EV) Actual Cost (AC) Schedule Variance (SV) Schedule Performance Index (SPI) Cost Variance (CV) Cost Performance Index (CPI) … [Read more...]
The Program Evaluation and Review Technique (PERT) is an important step in project scheduling. 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 as arrows Milestone dates are nodes PERT charts are also called … [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. … [Read more...]
In its most basic form a project schedule is a list of tasks with assigned start and finish dates. It can also be a graphical bar chart produced with project management software or in a spreadsheet. In professional schedule development, a critical path analysis using a network diagram produces the critical path tasks and their floats. Since a graphical bar … [Read more...]
Once the project has been divided into tasks and resources assigned to those tasks, the next step is to determine the task durations. This may seem trivial, but its importance cannot be understated because these durations will be used to construct the project schedule. Just like the tiny O-rings that brought down the space shuttle Challenger, one small underestimation … [Read more...]
