Cognitive development -> assimilation and accommodation of new information -> update understanding (mental schema) -> confusion or missing information -> cannot update mental schema -> Information need -> identified through interaction with environment or critical thinking -> Information literacy -> needed to effectively fill an information need ->

Possible Prerequisite linking

Cognitive development ... information need

San Jose State University

Defined as what an individual needs to know to fill in a knowledge/information gap. For example, when a patient seeks a doctor's appointment, they are looking to fill an information gap concerning their physical condition. 

Information Need

- Taylor's Levels
- Belkin's Information Problems
- Dervin's Information Seeking as Sense-Making
- Maslow's Hierarchy of Needs

Models of Information Needs

Users usually identify on their own that they have an information need, however, they may need support in specifying the parameters of their need to focus their efforts and search efficiently. Grover's Diagnostic Model can help librarians diagnose users' information needs. 

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