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Software Estimation : What is An Estimate ?
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Software Estimation : What is An Estimate ?

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  • 1. #1 Software Estimation What is an “Estimate” ? Wildan Maulana wildan.m@openthinklabs.com http://workshop.openthinklabs.com
  • 2. It is very difficult to make a vigorous, plausible,and job-risking defense of an estimate that isderived by no quantitative method, supported bylittle data, and certified chiefly by the hunches ofthe managers.—Fred Brooks
  • 3. What Is an "Estimate"?A tentative evaluation or rough calculation. A preliminary calculation of the cost of a project A judgment based upon ones impressions; opinion…....asking for a commitment or for a plan to meet a target
  • 4. Estimates, Targets, and CommitmentsA target is a statement of a desirable business objective "We need to have Version 2.1 ready to demonstrate at a trade show in May." "These functions need to be completed by July 1 so that well be in compliance with government regulations."A commitment is a promise to deliver defined functionality ata specific level of quality by a certain date Distinguish between estimates, targets, and commitments.
  • 5. Relationship Between Estimates and PlansEstimation should be treated as an unbiased, analytical processPlanning should be treated as a biased, goal-seeking process
  • 6. Diajarna Ngareu-yeuh .. :)
  • 7. Reference

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