Phrase Learning: Earned Value Analysis)

Author: gnuhpc
Source: http://www.cnblogs.com/gnuhpc/

Various forms of earnings analysis are the most commonly used method for measuring execution. It combines metrics such as scope, cost, and progress to help the project management team evaluate project execution. For each activity, the surplus amount analysis includes the calculation of three main values:
The budget, also known as the budgeted cost of work scheduled: bcws, is an approved cost estimate that is planned to be spent on an activity within a given period.
The actual cost, also known as the actual cost of the executed work (the actual cost of work completed MED: acwp), is the sum of the direct and indirect costs incurred by completing the work within a given period.
The Earned Value, also known as the budget cost of executed work (the budgeted cost of work completed MED: bcwp), is a percentage of the total budget. This one hundred-cent ratio is equivalent to a percentage of actually completed work. To simplify data collection, many surplus volumes are expressed in only one percentage. Some surplus amounts are expressed only by 0 and 100% (finished or unfinished) to ensure the objectivity of execution measurement.

These three quantities are used together to provide the metric criteria for whether the work is completed as planned. The most commonly used metrics are cost difference (CV = BCWP-ACWP), Progress difference (SV = bcwp-bcws), and cost execution Index (CPI = bcwp/acwp ). The cumulative cost execution index (the sum of bcwps divided by the sum of acwps) is widely used in predicting project costs at completion. In some application fields, the Progress execution index (SPI = bcwp/bcws) is also used to predict the project completion date.

1. performance reports ). The execution report organizes and summarizes the collected information and puts forward the analysis results. The implementation report provides detailed information that meets the requirements of various project stakeholders in accordance with the provisions of the Communication Management Plan. Common formats of execution reports include bar charts (also known as Gantt charts), s curves, rectangular charts, and tables. Figure 10-2 uses the S curve to represent the cumulative amount of surplus parsing data, while Figure 10-3 uses the table to represent the amount of surplus data.

 

Author: gnuhpc
Source: http://www.cnblogs.com/gnuhpc/