bility class specified for each factor in any crop requirement, example <code>BANANATerrain</code>, forms what is referred in here as the <em>unstandardized suitability class intervals</em>. The term <em>unstandardized</em> follows from the fact that the class intervals across factors or parameters have different units, as already emphasized earlier. It would be convenient, therefore, to have a uniform or standardized unit or metric across factors. In this article, this is referred to as the <em>standardize