Transactive Memory System
Updated 2026-08-02
INTRODUCTION
English translation pending.
CORE DEFINITION
Developed by Daniel Wegner and extended to teams by researchers such as Andrea Hollingshead, a transactive memory system distributes knowledge across members and links it through a shared directory of who knows what. The group's memory is the combination of individual stores plus the retrieval paths between them, so communication and trust determine how much of it is actually usable. Teams perform better when the directory is accurate and members rely on each other's expertise.
SCAFFOLDING EFFECT
Reduce cognitive load
- Map the expertise: build and maintain a directory of who knows what on the team - Make retrieval cheap: create easy ways to ask the right person at the right time - Trust the index: verify that a colleague's claimed expertise actually holds
Anchor fast decisions
Each member stores only part of what the group needs, and the shared directory tells everyone where the rest lives. Retrieval then depends on asking the right person, so clear communication and mutual trust convert separate memories into a working system. When the index is wrong or trust is absent, the knowledge exists but never reaches the decision.
MINIMUM ACTION
In progress 0/2Practice this model in one real situation:
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Source support: Explicit
- en.wikipedia.orghttps://en.wikipedia.org/wiki/Transactive_memoryverified
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