Table 1.

Feature comparison of both Phase 1 prototypes.

Functionality	Prototype 1: personal contacts search	Prototype 2: collaborator attribute search
Search mechanism	Keyword search and link to imported contacts	Browse/search for initial profile, keyword search identifies researchers with similar profiles
Display	Timeline with color-coded glyphs for publications	Tabular grids with aggregate displays of publications, grant funding, institutions, and other keywords
Controls	None	Interactive controls for selecting similarity values for publications, grants, and other values