1. Work Breakdown Structure
Three Point Estimate
effort of Activity = ((Most probable Value * 4) + Pessimistic Value + Optimistic Value)/6
2. Lines of Code
Measure after the coding phase
Measure at the beginning of maintenance or conversion project
3. Delphi
several engineers individually produce estimates and converge on a consensus estimate at last.
3.1 A group of experts is each given the program's SPECs and estimation form
3.2 the experts discuss
3.3 anonymously list project tasks and a size estimate
3.4 moderator collects the estimates and tabulates the results and return them to the experts
3.5 only each expert's personal estimate is identified; all others are anonymous.
3.6 experts discuss and review the tasks
3.7 continues from step 3.3 again utill converge to within an acceptable range
4. Function Point
Five aspects considered:
* External Inputs(EIs), Add&Update&Delete Records
* External External Outputs(EOs), Records Summary&Details
* External Inquiries(EQ),an input/output flow where input immediately generates the output, no logical data files modified
* Internal logical files(ILFs),maintained data model entity
* External Interface files(EIFs), maintained outside of the application
step1: determine the type of project: development project, enhancement project,installed application
step2: identify the Counting Boundary
step3: determine an unadjusted function point count
step4: Determine a value adjustment factor
step5: Calculate the adjusted function point count
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