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What is Top-Down vs Bottom-Up Estimation in DWH about?

This document discusses two types of project estimation techniques used in data warehouse (DWH) projects: top-down and bottom-up estimation. Top-down estimation predicts effort by comparing a new project to similar past projects based on factors like domain, source systems, users, and complexity. Bottom-up estimation builds up the total effort by estimating individual tasks derived from the work breakdown structure at a more detailed level than top-down.

Author

Vishnu Vardhan Valaboju

Language

EN