(SOIF) The ATtribute-value pair record formAT which Harvest Brokers use to exchange Harvest content summaries. SOIF provides a means of bracketing collections of summary objects, allowing Harvest Brokers to retrieve SOIF content summaries for many objects in a single, efficient compressed stream. Harvest Brokers provide support for querying SOIF dATa using structured ATtribute-value queries and many other types of queries. . (1996-09-16)