Document types, Table 4-5 – Compaq OSI/FTAM D43 User Manual

Page 40

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Compaq FTAM Responder Support of
ISO FTAM Functions

OSI/FTAM Responder Manual425199-001

4 -4

Document Types

* In this context, full support applies to the contents type as a whole; it does not imply the support of all document
types or all possible values of the parameters (maximum-string-length, universal-class, and string-significance) that
further define the contents type.

Document Types

Table 4-5 identifies the FTAM document types that the Compaq responder supports and
provides all supported values for associated contents-type parameters. The parameter
values listed here are those directly supported; for information on the default values of
these parameter values, see Table 4-7, later in this section.

Document types can be simplified to other document types with simpler structures.
Simplification is the process of reading a file of a specific document type as a simpler
document type. Relaxations—specifications that change the parameter values of a
document type—are not permitted by Compaq FTAM. For more information on
simplification and relaxation, see the subsection “Contents-Type Attribute,” later in this
section.

The NBS-9 parameter value < filename > shown in Table 4-5 is the syntax notation for
representing the value of a bit string. In this case, only the filename attribute bit is set.

Security

Access control

Partial if protected by Safeguard security
software

Legal qualifications

Partial

Private

Private use

Not supported

Table 4-5. Document Types and Parameters Supported by the Compaq FTAM
Responder

FTAM
Document
Types

Parameters

Parameter Values

FTAM-1

universal class

22, 25-27

maximum-string-length

1 - 7148 (in bytes)

string-significance

not-significant or
Fixed or Variable

FTAM-2

universal class

22, 25-27

maximum-string-length

1 - 4072* (in bytes)

string-significance

not-significant

FTAM-3

maximum-string-length

1 - 4096 (in bytes)

string-significance

not-significant

Table 4-4. Attributes Supported by the Compaq FTAM Responder (continued)

Attribute
Group

File Attribute

Level of Support

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