Semantic Marks

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Semantic Marks

• A semantic mark is
• an excerpt (marked region) in a base document,
• an address for that marked region, and
• a user-defined label (possibly typed) that
• expresses the meaning of that marked region in a
  particular perspective, and
• can be used to access or refer to the marked
  region
• A semantic mark allows referencing of marked
  regions based on meaning (content) not location

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Semantic Marks

• Provides a useful abstraction to separate the
  mapping of a marked region to its base layer
  address from the mapping of a semantic label to a
  marked region
• A single label can reference multiple instances
  of the same entity/concept (occurring in one or
  more documents)
• When knowledge/belief changes or the base
  document changes, can remap label to a new marked
  region
• The history of mappings provides provenance a for
  concept
• Can use same label to reference a marked region
  that was remapped to a new address when a
  document was changed
• Label can be used to assert relationships and
  correspondences
• Can facilitate creation and sharing of multiple
  interpretations in the superimposed layer over
  documents in the base layer

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NVivo
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Using Manual Marks with Meaningful Labels to
Organize and Structure Data

• Sticky tabs indicate the vertical position on the
  page
• Labels indicate the type of data being marked and
  provide an informal schema for organizing
  information

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Using Manual Marks with Meaningful Labels to
Organize and Structure Data
One label summarizes multiple data items
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