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<div id="level of granularity"></div>
=== Level of granularity ===gfjhngnjgnhjghnghnhn
One extant cause of confusion in the general discussion of interaction is a lack of clarity about levels of granularity.<ref name="spdh">Sedig, K., Parsons, P., Dittmer, M., & Haworth, R. (2013). Human–centered interactivity of visualization tools: Micro– and macro–level considerations. In W. Huang (Ed.), Handbook of Human-Centric Visualization (pp. 717–743). Springer, New York.</ref> Interaction techniques are usually characterized at a low level of granularity—not necessarily at the lowest level of physical events, but at a level that is technology-, platform-, and/or implementation-dependent. For example, interaction techniques exist that are specific to mobile devices, touch-based displays, traditional mouse/keyboard inputs, and other paradigms—in other words, they are dependent on a specific technology or platform. In contrast, viewed at higher levels of granularity, interaction is not tied to any specific technology or platform. The interaction of 'filtering', for example, can be characterized in a way that is technology-independent—e.g., performing an action such that some information is hidden and only a subset of the original information remains. Such an interaction could be implemented using any number of techniques, and on any number of platforms and technologies.<ref name="sp" /> See also the discussion of [[#interaction patterns]] below.
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