3.6. Key Points in Chapter Three

  • Selection, organizing, interaction design, and maintenance activities occur in every organizing system.

    (See §3.1, “Introduction”)

  • These activities are not identical in every domain, but the general terms enable communication and learning about domain-specific methods and vocabularies.

    (See §3.1, “Introduction”)

  • The most fundamental decision for an organizing system is determining its resource domain, the group or type of resources that are being organized.

    (See §3.2, “Selecting Resources”)

  • Memory institutions select rare and distinctive resources, but in scientific research, a sample must contain representative instances.

    (See §3.2, “Selecting Resources”)

  • Even when the selection principles behind a collection are clear and consistent, they can be unconventional, idiosyncratic, or otherwise biased.

    (See §3.2.1, “Selection Criteria”)

  • If you can determine where the resources come from, you can make better selection decisions by evaluating the people, processes, and organizing systems that create them.

    (See §3.2.2, “Looking “Upstream” and “Downstream” to Select Resources”)

  • In this book we use property in a generic and ordinary sense as a synonym for feature or “characteristic.” Many cognitive and computer scientists are more precise in defining these terms and reserve property for binary predicates (e.g., something is red or not, round or not). If multiple values are possible, the property is called an attribute, “dimension,” or “variable.”

    (See §3.3, “Organizing ...

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