Glossary
protocol implementation conformance statement (PICS). Static conformance requirements are constraints specified in the standards or related profiles to facilitate interworking. Dynamic conformance requirements determine what observable behavior is permitted by the standards or profiles in instances of communication. The PICS is a statement, made by the supplier of an OSI implementation, describing the capabilities and options that have been implemented for a given OSI protocol. See also profile.
connection. A link between a service access point (SAP) on one protocol stack and a corresponding point on a different protocol stack (either in the same system or in another local or remote system). See also association.
connection endpoint identifier. See CEPI.
constraint set. A specification placing restrictions and refinements on the FTAM general file model. These restrictions and refinements define a more specific model that reflects the needs of a particular class of applications.
contents-type attribute. A file attribute that indicates either the document type of a file or its abstract syntax name and constraint-set name. The value of this attribute is set at file creation and cannot be changed by the change-attribute action. See also contents- type parameter.
contents-type parameter. A parameter that indicates the document type of a file and, optionally, parameter values that further define the document type. The contents-typemust either match the document type of the file being opened or be an allowed simplification of the document type. If you are using the Compaq FTAM initiator, and you do not specify contents-typein a call to FTM_OPEN_REQ_ , it will default to indicate that the contents type is unknown. You can then retrieve the valid file contents- type by calling FTM_OPEN_CNF_ , which returns information from the confirm received from the responder. This parameter must also be specified in calls to FTM_CREATE_REQ_. Document types supported by Compaq FTAM are FTAM-1, FTAM-2, FTAM-3, and NBS-9. See document type.
contents-type-list parameter. A parameter used for negotiating the document types and abstract syntaxes that will be available on the association. For Compaq FTAM, the default document types requested are FTAM-1, FTAM-2, FTAM-3, and NBS-9.
D-series system. A system running any Dxx version of the Compaq NonStop Kernel, such as D10 or D20.
Data Definition Language. See DDL.
Data Link Layer. Layer 2 in the OSI Reference Model. This layer packages data for transmission across the network and ensures that the data arrives at the next layer without any errors.
data-transfer regime. The regime established after successfully gaining read or write access to an FTAM file. In the data-transfer regime, you can send or receive data, and you can abort the association. See also FTAM regime, file-selection regime, and file-open regime.
DDL (Data Definition Language). A Compaq language for defining data. DDL builds a dictionary from the definitions, translates the definitions into File Utility Program
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