Costing for a project

  • Compare cost and effort estimates developed using LOC and cost/task techniques
  • reconcile (and rationalize) differences
  • add other costs, such as computer time, travel and livng, materials, etc.
  • recognize potential deviation

    Example of Cost Estimation for Distance Learning System

    Step 1. LOC Cost Table Technique:
Function      Optimistic  Most  Pessimistic  Expected  Deviation
Cal Interface     200      300          550       325         58
Login Interface    30       50          100        55         11
Administration    300      450          600       450         50
PHP               100      150          200       150         16
Open SSL          150      200          300       208         25
MySQL             150      250          300       241         25
Java BDC          100      150          250       158         25

Expected LOC (Lines of Code) = 1587
Deviation =  210
68% range =  1377  to   1797
99% range =   327  to   2844
($/LOC) = $20
Cost = $20 x 1587 = $31,740