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When a user is interacting with a computer, there are three main areas of
contextual information that may affect the behaviour of the system: who
the user is, where they are, and what they are doing.
Activities deal with the last one. An activity might be "developing a KDE
application", "studying 19th century art", "composing music" or "watching
funny videos". Each of these activities may involve multiple applications,
and a single application may be used in multiple activities (for example,
most activities are likely to involve using a web browser, but different
activities will probably involve different websites).
KActivities provides the infrastructure needed to manage a user's
activities, allowing them to switch between tasks, and for applications to
update their state to match the user's current activity. This includes a
daemon, a library for interacting with that daemon, and plugins for
integration with other frameworks.
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