1 Scope and Field of Application
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# 1 Scope and Field of Application

This Part of the DICOM Standard specifies the set of Information Object Definitions (IODs) that provide an abstract definition of real-world objects applicable to communication of digital medical information. For each IOD, this Part specifies:

- any necessary information for the semantic description of the IOD

- relationships to associated real-world objects relevant to the IOD

- Attributes that describe the characteristics of the IOD

For each IOD, this Part does not specify:

- the nature of any Service Class Definition intended to reference the IOD

- the nature of any interactions that result in the usage of the IOD

This Part is related to other parts of the DICOM Standard in that:

- PS3.4 Service Class Specifications, specifies application level services by grouping DIMSE services with IODs as defined in this Part;

- PS3.5 Data Structure and Semantics, defines the data encoding used in the DIMSE Protocol when applied to IODs defined in this Part;

- PS3.6 Data Dictionary, contains an index by Tag of all IOD Attributes defined in this Part. This index includes the Value Representation and Value Multiplicity for each Attribute;

- PS3.7 Message Exchange Protocol, defines the DIMSE Services and Protocol that may be applied to IODs defined in this Part.

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