OSI/FTAM Programming Reference Manual

HP NonStop OSI/FTAM Programming Reference Manual—528611-001
Glossary-1
Glossary
The following glossary defines terms used both in this manual and in the other
NonStop FTAM manuals. Not all terms listed here are used in this particular manual.
abstract syntax. A standardized method of describing data structures that is independent of
the way they are represented in data transmission. An abstract syntax uses a set of
primitive elements defined by an abstract syntax notation such as ASN.1, defines
ranges of values for the primitive elements, and defines ways of combining these
elements. See also transfer syntax. and ASN.1 (Abstract Syntax Notation-1).
Abstract Syntax Notation-1. See ASN.1 (Abstract Syntax Notation-1).
access-context parameter. A parameter used for read transfers within the data-transfer
regime to specify the file structure by which information in the file is accessed. Possible
structures for NonStop FTAM are flat all data units (for FTAM-2 files) and unstructured
all data units (for FTAM-1, FTAM-2, and FTAM-3 files). See UA (unstructured all data
units). and FA (flat all data units).
access-control attribute. A file attribute that contains the information to determine whether
file access is allowed or denied. The attribute value is set when the file is created. You
can alter the access-control attribute using the change-attribute action.
ACSE (Association Control Service Element). An application service element (ASE) in
the Application Layer of the OSI Reference Model. The ACSE exists within an
application entity and enables other ASEs to establish and release associations. It is
accessible to users of OSI/AS through the APS procedures. See also ASE (application
service element). or Application Layer.
action-result parameter. In effect, a summary of the ISO FTAM diagnostic parameter. The
action-result value success (ZFTM-VAL-ACTION-SUCCESS for the FTAM API)
indicates that the requested service was performed successfully. The action-result
value failure (ZFTM-VAL-ACTION-FAILURE for the FTAM API) indicates that the
service was not performed successfully. If any one of the diagnostic messages
returned indicates a failure, the value of action-result must be failure. See also state-
result parameter.
activity attributes. Dynamic attributes specific to an individual FTAM association. These
attributes are both created and discarded during the life of an association and might
change as the status of the association changes. See also file attributes.
AE title. See application entity title (AE title).
APDU (application protocol data unit). See PDU.