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The project management triangle (called also the triple constraint, iron triangle and project triangle) is a model of the constraints of project management. While its origins are unclear, it has been used since at least the 1950s. [1] It contends that: The quality of work is constrained by the project's budget, deadlines and scope (features).
Quality, cost, delivery (QCD), sometimes expanded to quality, cost, delivery, morale, safety (QCDMS), [1] is a management approach originally developed by the British automotive industry. [2] QCD assess different components of the production process and provides feedback in the form of facts and figures that help managers make logical decisions.
Common among all the project management types is that they focus on three important goals: time, quality, and cost. Successful projects are completed on schedule, within budget, and according to previously agreed quality standards i.e. meeting the Iron Triangle or Triple Constraint in order for projects to be considered a success or failure. [21]
In project management, a schedule is a listing of a project's milestones, activities, and deliverables. Usually dependencies and resources are defined for each task, then start and finish dates are estimated from the resource allocation , budget , task duration , and scheduled events.
Figure 2: Measuring schedule performance without knowledge of actual cost Figure 3: Measuring cost performance without a PV baseline Figure 4: The most common form of EVM graphic. It is helpful to see an example of project tracking that does not include earned value performance management.
A Gantt chart is a bar chart that illustrates a project schedule. [1] It was designed and popularized by Henry Gantt around the years 1910–1915. [2] [3] Modern Gantt charts also show the dependency relationships between activities and the current schedule status.
Delivery schedule adherence (DSA) is a business metric used to calculate the timeliness of deliveries from suppliers. It is a commonly used supply chain metric and forms part of the Quality, Cost, Delivery group of performance indicators.
Nonlinear Pricing Schedule - Nonlinear pricing is a pricing schedule in which quantity and total price are not mapped to each other in a strictly linear fashion [2] Affine Pricing - An affine pricing schedule consists of both a fixed cost and a cost per unit. Using the same notation as above, T(q) = k + pq, where k is a constant cost. [3]