1. A system for interactive, intelligent searching of data elements in a knowledge base, the knowledge base including data elements in multiple search dimensions, comprising: a suggestion engine; and a suggestion space, coupled to said suggestion engine, said suggestion space having at least one data structure representative of relationships between data elements in the knowledge base; wherein said suggestion engine interrogates the suggestion space based on received scope change search criteria to obtain scope change search results and returns a smart tip that represents said scope change search results; whereby an executable suggestion can be provided to a user based on the smart tip.