Chapter 6 Flashcards
Activity List
The primary output of breaking down the WBS work packages
Alternative Estimating
The identification of more than one solution. Consider roles, materials, tools, and approaches to the project work
Analogous Estimating
somewhat unreliable estimating approach that relies on historical information to predict what current activity durations should be. Analogous estimating is more reliable, however, than team-member recollections. Analogous estimating is also known as top-down estimating and is a form of expert judgement
Bottom-Up Estimating
The most accurate time-and-cost estimating approach a project manager can use. This estimating approach starts at “the bottom” of the project and considers every activity, its predecessor and successor activities, and the exact amount of resources needed to complete each activity.
Control Account
A WBS entry that considers the time, cost, and scope measurements for that deliverable within the WBS. The estimated performance is compared against the actual performance to measure over
Control threshold
a predetermined range of acceptable variances such as plus or minus 10% off schedule. Should the variance exceed the threshold project control processes and corrective actions will be enacted.
Crashing
a schedule compression approach that adds more resources to activities on the critical path to complete the project earlier. When crashing a project costs are added because the associated liver and sometimes resources such as faster equipment cause costs to increase
Critical path
the pass in the project Network diagram that cannot be delayed or the project completion date will be late. There can be more than one critical path. Activities in a critical path have no float.
Discretionary dependencies
these dependencies are the preferred order of activities. Project managers should use these relationships at their discretion and document the logic behind the decision. discretionary dependencies enable activities to happen in a preferred order because of best practices conditions unique to the project world or external events. Also known as a preferential or soft logic.
Early finish
the earliest a project activity can finish. Used in the forward pass procedure to discover the critical path and the project float.
Early start
the earliest a project activity can begin. Used in the forward pass procedure to discover the critical path and the project float.
External dependencies
Dependencies outside of the projects control. examples include the delivery of equipment from a vendor, the deliverable of another project, or the decision of the committee, a lawsuit, or an expected new law
Fast tracking
a schedule compression method that changes the relationship of activities. With fast-tracking activities that would normally be done in sequence are allowed to be done in parallel or with some overlap. Fast-tracking can be accomplished by changing the relation of activities from FS to SS or even FF or by adding lead time to downstream activities. However fast-tracking does add risk to the project.
Finish to finish
Connectivity relationship type that requires the current activity to be finished before its successor can finish
Finish to start
Inactivity relationship type that requires the current activity to be finished before its successor can start
Fragnet
A representation of a project network diagram that is often used for outsourced portions of a project, repetive work within a project, or a subproject. AKA. Subnet
Free Float
The total time a single activity can be delayed without affecting the early start of its immediately following successor activities.
Hard logic
Logic that describes activities that must happen in a particular order. For example, the site must be excavated before the foundation can be built. The foundation must be in place before the framing can begin. Also known as a mandatory dependency.
Internal dependencies
internal relationships to the project or the organization. For example, the project team must create the software as part of the project deliverable before the software can be tested for quality control