Glossary - Q-S Flashcards
Simulation
A simulation uses a project model that translates the uncertainties specified at a detailed level into their potential impact on objectives that are expressed at the level of the total project. Project simulations use computer models and estimates of risk, usually expressed as a probability distribution of possible costs or durations at a detailed work level, and are typically performed using Monte Carlo analysis.
Slack
Also called float. See total float and free float.
Special Cause
A source of variation that is not inherent in the system, is not predictable, and is intermittent. It can be assigned to a defect in the system. On a control chart, points beyond the control limits, or non-random patterns within the control limits, indicate it. Also referred to as assignable cause. Contrast with common cause.
Specification
A document that specifies, in a complete, precise, verifiable manner, the requirements, design, behavior, or other characteristics of a system, component, product, result, or service and, often, the procedures for determining whether these provisions have been satisfied. Examples are: requirement specification, design specification, product specification, and test specification.
Specification Limits
The area, on either side of the centerline, or mean, of data plotted on a control chart that meets the customer’s requirements for a product or service. This area may be greater than or less than the area defined by the control limits. See also contra/limits.
Sponsor
The person or group tl1at provides the financial resources, in cash or in kind, for the project.
Staffing Management Plan
The document that describes when and how human resource requirements will be met. It is contained in, or is a subsidiary plan of, the human resource plan.
Stakeholder
Person or organization (e.g., customer, sponsor, performing organization, or the public) that is actively involved in the project, or whose interests may be positively or negatively affected by execution or completion of the project. A stakeholder may also exert influence over the project and its deliverables.
Standard
A document that provides, for common and repeated use, rules, guidelines, or characteristics for activities or their results, aimed at the achievement of the optimum degree of order in a given context.
Start Date
A point in time associated with a schedule activity’s start, usually qualified by one of the following: actual, planned, estimated, scheduled, early, late, target, baseline, or current.
Start-to-Finish (SF)
The logical relationship where completion of the successor schedule activity is dependent upon the initiation of the predecessor schedule activity. See also logical relationship.
Start-to-Start (SS)
The logical relationship where initiation of the work of the successor schedule activity depends upon the initiation of the work of the predecessor schedule activity. See also logical relationship.
Statement of Work (SOW)
A narrative description of products, services, or results to be supplied.
Strengths, Weaknesses, Opportunities, and Threats (SWOT) Analysis
This information gathering technique examines the project from the perspective of each project’s strengths, weaknesses, opportunities, and threats to increase the breadth of the risks considered by risk management.
Subnetwork
A subdivision (fragment) of a project schedule network diagram, usually representing a subproject or a work package. Often used to illustrate or study some potential or proposed schedule condition, such as changes in preferential schedule logic or project scope.
Subphase
A subdivision of a phase.
Subproject
A smaller portion of the overall project created when a project is subdivided into more manageable components or pieces.
Successor Activity
The schedule activity that follows a predecessor activity, as determined by their logical relationship.
Summary Activity
A group of related schedule activities aggregated at some summary level, and displayed/ reported as a single activity at that summary level. See also subproject and subnetwork.
Schedule
See project schedule and see also schedule model.
Schedule Baseline
A specific version of the schedule model used to compare actual results to the plan to determine if preventive or corrective action is needed to meet the project objectives.
Schedule Compression
Shortening the project schedule duration without reducing the project scope. See also crashing and fast tracking.
Schedule Management Plan
The documentthat establishes criteria and the activities for developing and controlling the project schedule. It is contained in, or is a subsidiary plan of, the project management plan.
Schedule Model
A model used in conjunction with manual methods or project management software to perform schedule network analysis to generate the project schedule for use in managing the execution of a project. See also project schedule.
Schedule Network Analysis
The technique of identifying early and late start dates, as well as early and late finish dates, for the uncompleted portions of project schedule activities. See also critical path method, critical chain method, and resource leveling.
Schedule Performance Index (SPI)
A measure of schedule efficiency on a project. It is the ratio of earned value (EV) to planned value (PV). The SPI = EV divided by PV.
Schedule Variance (SV)
A measure of schedule performance on a project. It is the difference between the earned value (EV) and the planned value (PV). SV = EV minus PV.
Scheduled Finish Date (SF)
The point in time that work was scheduled to finish on a schedule activity. The scheduled finish date is normally within the range of dates delimited by the early finish date and the late finish date. It may reflect resource leveling of scarce resources. Sometimes called planned finish date.
Scheduled Start Date (SS)
The point in time that work was scheduled to start on a schedule activity. The scheduled start date is normally within the range of dates delimited by the early start date and the late start date. It may reflect resource leveling of scarce resources. Sometimes called planned start date.