![]() Go online and find at least two sites with definitions of fast tracking and crashing a project schedule.If the user testing of the user interface takes 15 days, what will the impact be on the project duration?.For each task NOT on the critical path, calculate the amount of slack available.What is the critical path for the testing project?.What is the planned duration for the testing project?.Ask your instructor if you are permitted to use software such as Microsoft Project to help you prepare your diagrams. Create a network diagram and a Gantt chart for the project tasks.For example, if a piece of key equipment is only available for a few days, activities that depend on it have the same start and finish dates in the forward and backward passes. The difference between the early start date and the late start date for activities on the critical path is usually the same as the total float, unless the activities are affected by the resource calendars differently in the forward and backward pass. Assign the calculated date as the late start date of the predecessor activity.Refer to the resource calendar(s) that applies to the people and equipment necessary for the activity, and subtract the number of off days that the activity would span on those calendars.Subtract the lag time or add the lead time to the late finish date.Subtract the predecessor activity’s duration from its late finish date.Follow these steps to calculate the late start dates of predecessor activities, assuming finish-start relationships: To calculate late start dates, begin with the project completion milestone and assign that date as the finish date of its predecessor activities. Resource calendars must be considered in the backward pass as well as the forward pass. Subtract the duration of each activity in each path to determine the latest date the activity could begin and still meet the project completion date. The next step is to work through the network diagram from right to left beginning with the mandated completion date, which is a milestone that is set in the project plan. The float on those activities is called free float. If activities that are not on the critical path have a difference between their early start date and their late start date, those activities can be delayed without affecting the project completion date. A project can also have negative float, which means the calculated completion date of the last activity is later than the targeted completion date established at the beginning of the project. Any delay in an activity on the critical path would reduce the amount of total float available on the project. Total float is the difference between the finish date of the last activity on the critical path and the project completion date. Floatįloat, sometimes called Slack (float), is the amount of time an activity, network path, or project can be delayed from the early start without changing the completion date of the project. Computer software must be combined with common sense or good judgment. ![]() Fortunately, there are computer programs to assist in the process, but the project manager must understand the process well enough to recognize computer errors.
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