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Command: ddis | Section: 4 | Source: Digital UNIX | File: ddis.4.gz
DDIS(4) Kernel Interfaces Manual DDIS(4)
NAME
DDIS, ddis - Digital Data Interchange Syntax / ISO ASN.1 (DDIS/ASN.1)
files
DESCRIPTION
DDIS is an ASN.1 syntax that conforms to the specifications of Interna-
tional Standards Organization Abstract Syntax Notation One (ISO ASN.1).
Digital's CDA architecture defines two document formats and a mail syn-
tax for the sharing and transport of revisable compound documents and
tabular files based on the DDIS syntax that is a subset of ASN.1: DDIF
(Digital Document Interchange Format) is the interchange and applica-
tion file format for compound documents containing text, graphics, im-
ages, and audio. DTIF (Digital Table Interchange Format) is the inter-
change and application file format for tabular data, such as spread-
sheets and multi-dimensional tables. DOTS (Data Object Transport Syn-
tax) is a transparent interface for the transfer of compound documents
with external links to multiple subfiles via mail systems.
CDA-supported files that conform to one of the DDIS/ASN.1 family of
syntaxes are typed according to a particular DDIS/ASN.1 syntax. For ex-
ample, a DDIF file is identified by the file command as a ddis/ddif
file.
For more information on CDA enabling technologies and the DEC CDA Run-
Time Services, refer to the CDA(4) manpage.
SEE ALSO
cdoc(1), ctod(1), ddifanls(1), ddifps(1), ddiftext(1), dtifanls(1),
dtifddif(1), dtoc(1), dxvdoc(1X), textddif(1), vdoc(1), cda(4),
cda_msg(4), ddif(4), dots(4), dtif(4), dvr_msg(4)
DDIS(4)