Parametric Estimatation ?

 

Can Parameteric estimation be considered as Bottom up estimation technique ?

Both are not same

For parametric estimate, the inputs are from historical benchmarks. They can be applied to tal projects or segments of a project

Whereas bottom up estimate is an estimate which is built from lowest non divisible element

Bottom up estimate is expensive and accurate when compared to parametric estimating

Refer http://pmi.books24x7.com/assetviewer.aspx?bookid=37809&chunkid=766491536 and PMBOK pg 172

This is as per my understanding