G. Marchionini, UNC-CH
Claims
•Today’s IR systems are not comparable to paper-based systems.
–bibliographic, full-text, and multimedia IR systems are not comparable
•Complex systems are greater than the sum of their respective components.
–systems that include human components are inherently complex
•Information seeking is an interactive process.
–different users, domains, and settings require distinct IR system capabilities
subpoint 1 is a corollary

subpoint two is a related claim

Polymer chemist wants chemical structures; medical researchers want graphs & tables

Fast moving research areas needs controlled vocabulary that tracks changes (e.g., renaming concepts; naming product lines, etc.)