3 Definitions

For the purposes of this Standard the following definitions apply.

3.1 PRESENTATION SERVICE DEFINITIONS

This part of the standard makes use of the following terms defined in ISO 8822:

a. Transfer Syntax

b. Transfer Syntax Name

3.2 XML Infoset definitions

This part of the standard makes use of the following terms defined in W3C Recommendation XML Information Set:

a. Infoset or XML Infoset

b. Element or XML Element

c. Attribute or XML Attribute

Notes: 1. The concept of an XML Attribute is quite distinct from that of a DICOM Attribute.

2. To avoid confusion with the DICOM terms with similar names, the text of the DICOM Standard will use XML Element and XML Attribute when referring to these XML Infoset concepts. The appearance of Element or Attribute without the term XML in front of them generally refers to the DICOM concepts instead of the XML Infoset concepts.

3.3 DICOM introduction and overview definitions

This Part of the Standard makes use of the following terms defined in PS3.1:

a. Attribute

3.4 DICOM INFORMATION OBJECT DEFINITION

This part of the standard makes use of the following term defined in PS3.3:

a. Attribute Tag

3.5 DICOM data structures and encoding

This Part of the Standard makes use of the following terms defined in PS3.5:

a. Data Element

b. Data Element Tag

c. Data Element Type

d. Data Set

e. Defined Term

f. Enumerated Value

g. Sequence of Items

h. Unique Identifier (UID)

i. Value Multiplicity (VM)

j. Value Representation (VR)

3.6 Codes and Controlled Terminology Definitions:

This Part of the Standard makes use of the following terms defined in PS3.16:

a. Baseline Context Group Identifier (BCID)

b. Defined Context Group Identifier (DCID)

c. Context Group

d. Context Group Version

e. Context ID (CID)

f. Mapping Resource

g. DICOM Content Mapping Resource (DCMR)

h. Value Set

i. Coding schemes

3.7 Application Hosting Definitions

The following definitions are commonly used in this part of the Standard:

Application Programming Interface: A set of interface methods that Hosted Applications and Hosting Systems use to communicate with each other.

Hosted Application: An application launched and controlled by a Hosting System. The Hosted Application may utilize services offered by the Hosting System.

Hosting System: The application used to launch and control Hosted Applications. The Hosting System provides a variety of services such as DICOM object retrieval and storage for the Hosted Application. The Hosting System provides the infrastructure in which the Hosted Application runs and interacts with the external environment. This includes network access, database and security.