Meaning of data

The designer should not overestimate the accuracy of the data provided from different sources such as property sheets and in manuals. They are usually mean or maximum values obtained from various observations and sometimes extrapolated. Inaccuracy that can exist is partiy related to variations in the processing technique and partiy to the geometry of the part in question. It is evident that in order to use the data from those you perform to those from material suppliers data sheets, it is imperative to have a thorough understanding of how the data are evolved and what caution is to be exercised when applying the data to product designs or other evaluations.

They can easily be interpreted incorrecdy to mean something one desires in their design approach. Interpretations are always made and provide excellent logical approaches to developing a design however they require dedicated concentrations and relationships to the basic meaning of the test. In reality tests have only certain meanings.

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