Step 4: Determine what resources required and when it’s available Step 3: Determine the dependencies among the activities Step 1: Break down your project into activities There are five steps to perform Bottom-up Estimating: Project Manager is responsible to decide when would the best time using this technique.īottom-up estimating is one way to estimate time and cost from detail level starting and then aggregated to most upper level to obtain a larger estimate for the entire task as a whole. But, it’s also most time-consuming method for project estimating. Otherwise, you are no way to make it accurate. Try to decompose the project in details as possible. But, do you think how accurate such estimation technique is? Do you think that it is one reason causing project failure due to behind schedule and over budget consequences?Ĭan we estimate time and cost be accurate and controllable? YES. about three months to complete the project through your expect judgment. Any problem happen? Another method may be estimated roughly to have one figure e.g. Then, aggregate figures and develop the schedule, then reported to your boss the start date and finish date. Maybe do the estimation in Excel worksheet and list down what tasks you will do in the project and estimate how long you will complete them. If you never attend any project management training, you may do it based on your past experiences or follow steps of former in your organization. I think you often hear this talk in your IT life. ‘Rickie, user requested to modify the existing sales system to simplify the processes.
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