transfer syntax การใช้

• ASN . 1 encoding rules are used as a transfer syntax for remote invocations that resemble CORBA / IIOP.
• Various ASN . 1 encoding rules provide the transfer syntax ( a concrete representation ) of the data values whose abstract syntax is described in ASN . 1.
• Another function of the communication model is to convert the abstract data modeling ( ASN . 1 representations of objects ) used in the DIM into a " transfer syntax ".
• The rules, collectively referred to as a " transfer syntax " in ASN . 1 parlance, specify the exact octet sequences which are used to encode a given data item.
• Now the high-level transfer syntax descriptor Request can be parameterized with any arbitrary Information Object Set ( " IDL interface " ) conforming to the Information Object Class specification ( " IDL grammar " ).
• "' Generic String Encoding Rules ( GSER ) "'are a set of ASN . 1 encoding rules for producing a verbose, human-readable textual transfer syntax for data structures described in ASN . 1.
• This MDER-encoded ASN . 1 representation of objects is similar in concept to using XML as a machine-independent method of exchanging data ( indeed, the XER transfer syntax transfers ASN . 1 objects in XML ).
• The reason for the current limitation is that we currently hard-code our Information Object Set ( MyWarehouseOps in case of OPERATION, or MyErrorSet in case of ERROR ) into our ASN . 1 data types ( high-level transfer syntax specification ).
• Our example ASN . 1 data types which we agreed to compare to a high-level CORBA / IDL transfer syntax specification are limited to definition of such transfer syntax only for a single instance of what we compared to an IDL interface ( Information Object Set in ASN . 1 terms ).
• Our example ASN . 1 data types which we agreed to compare to a high-level CORBA / IDL transfer syntax specification are limited to definition of such transfer syntax only for a single instance of what we compared to an IDL interface ( Information Object Set in ASN . 1 terms ).
• With the current set of known tools you can't define such a transfer syntax in a generic way in, say, ASN . 1 specification A and then reuse it in ASN . 1 specifications B and C that define concrete application-specific " IDL interfaces " on which A does not depend.
• Other sources of technology for XML were the TEI ( Text Encoding Initiative ), which defined a profile of SGML for use as a " transfer syntax "; and HTML, in which elements were synchronous with their resource, document character sets were separate from resource encoding, the xml : lang attribute was invented, and ( like HTTP ) metadata accompanied the resource rather than being needed at the declaration of a link.