SEED, a Software Environment to Support the Early Phases in Building Design, allows
designers to explore conceptual alternatives and to iterate over design concepts in their search for a most
promising design scheme. But designers using SEED can easily get lost in the multiple design spaces they
are able to generate and therefore need intelligent navigation aids. We review in this report the literature
related to information navigation in electronic media, including the small subset of sources dealing
specifically with design space navigation. The sources listed in the report cover two main subject areas:
information navigation and information visualization.