Assume you are a software project manager and that you've been asked to compute earned value statistics for a small software project. The project has 56 planned work tasks that are estimated to require 582 person-days to complete. At the time that you've been asked to do the earned value analysis, 12 tasks have been completed. However the project schedule indicates that 15 tasks should have been completed. Compute the SPI, schedule variance, percent scheduled for completion, percent complete, CPI, and cost variance for the project. The following scheduling data (in person-days) are available:Task        Planned Effort      Actual Effort   1                   12.0                       12.5   2                  

15.0                       11.0   3                   13.0                       17.0   4                   8.0                         9.5   5                   9.5                         9.0   6                   18.0                       19.0   7                   10.0                       10.0   8                   4.0                         4.5   9                   12.0                       10.0   10                 6.0                         6.5   11                 5.0                         4.0   12                 14.0                       14.5   13                 16.0                       -   14                 6.0                         -   15                 8.0                         -

What will be an ideal response?


Given values for BCWS, BAC, and BCWP, important progress indicators can be computed:

Schedule performance index, SPI = BCWP/BCWS

Schedule variance, SV = BCWP - BCWS

Percent scheduled for completion = BCWS/BAC

provides an indication of the percentage of work that should have been completed by time t.

Percent complete = BCWP/BAC

provides a quantitative indication of the percent of completeness of the project at a given point in time t.

Computer Science & Information Technology

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