First-generation research on human information behavior is considered system-centered, with an emphasis on contextual variables of users of certain systems. In contrast, second-generation research is regarded as user-centered, with an emphasis on the person, regardless of the context. A third view is the so-called in-context research, which is centered on a person in a context or situation. In-context research has expanded to encompass fields other than library and information science, including information retrieval and human-computer interaction. This chapter examines in-context research and traces its evolution from the first user studies. It provides an overview of context and compares fluid and dynamic context with identifiable and stable context. It also considers the boundaries of a context as well as real versus perceived context.
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