1 Scope and field of application

This Part of the DICOM Standard specifies the set of Information Object Definitions (IODs) which 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 which 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 which result in the usage of the IOD

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

PS 3.4, Service Class Specifications, specifies application level services by grouping DIMSE services with IODs as defined in this Part;

PS 3.5, Data Structure and Semantics, defines the data encoding used in the DIMSE Protocol when applied to IODs defined in this Part;

PS 3.6, 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;

PS 3.7, Message Exchange Protocol, defines the DIMSE Services and Protocol which may be applied to IODs defined in this Part.