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  • ISO/IEC 18023-2:2006(E) -- Foreword
    Standards are drafted in accordance with the rules given in the ISO IEC Directives Part 2 The main task of the joint technical committee is to prepare International Standards Draft International Standards adopted by the joint technical committee are circulated to national bodies for voting Publication as an International Standard requires approval by at least 75 of the national bodies casting a vote Attention is drawn to the possibility that

    Original URL path: http://standards.sedris.org/18023-2/C039352e-html/C039352e_FILES/MAIN_C039352e/Part2/foreword.html (2016-02-11)
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  • ISO/IEC 18023-2:2006(E) -- 1 Scope
    This part of ISO IEC 18023 specifies the abstract syntax of a SEDRIS transmittal Actual encodings EXAMPLE binary encoding are specified in other parts of ISO IEC 18023 http standards

    Original URL path: http://standards.sedris.org/18023-2/C039352e-html/C039352e_FILES/MAIN_C039352e/Part2/Clause1--Scope.html (2016-02-11)
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  • ISO/IEC 18023-2:2006(E) -- A Guidelines for encodings
    ease development efforts Guidelines are provided for the use of encoding elements the use of compression and achieving efficiency Each of these topics is discussed below A 2 Encoding elements An encoding element is encoding specific and will depend on the type of encoding being developed Encoding elements are defined in 5 2 2 ENCODING ELEMENT grammar For a character based encoding e g a clear text encoding an ENCODING ELEMENT is also character based The purposes served by an ENCODING ELEMENT in a character based encoding include but are not limited to a delimiter a field separator a field name and or whitespace For a binary encoding an ENCODING ELEMENT consists of a specific set of bits assigned a meaning The purposes served by an ENCODING ELEMENT in a binary encoding include but are not limited to a FIELD see 5 2 8 DRM objects size specification a FIELD continuation indicator a FIELD extension indicator a reference to other elements within the transmittal and or to provide field quantization information A 3 Compression An encoding may specify how compression techniques apply All compression should ensure that the initial uncompressed data is recreated after decompression Thus only lossless compression should

    Original URL path: http://standards.sedris.org/18023-2/C039352e-html/C039352e_FILES/MAIN_C039352e/Part2/AnnexA--GuidelinesForEncodings.html (2016-02-11)
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  • ISO/IEC 18023-2:2006(E) -- Introduction
    for all encodings permits conversion between SEDRIS transmittals encoded in different formats with minimal effort This also enables implementations of the SEDRIS application program interface API to consistently interpret SEDRIS transmittals regardless of their encoding 0 2 Design goals This International Standard was developed to fulfill the following requirements The design is platform independent completely represents the SEDRIS data representation model supports lossless compression allows the development of encodings that

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  • ISO/IEC 18023-2:2006(E) -- 2 Normative References
    only the edition cited applies For undated references the latest edition of the referenced document including any amendments applies Identifier Reference I18023 1 ISO IEC 18023 1 2006 Information technology Synthetic Environment Data Representation and Interchange Specification SEDRIS Part 1

    Original URL path: http://standards.sedris.org/18023-2/C039352e-html/C039352e_FILES/MAIN_C039352e/Part2/Clause2--References.html (2016-02-11)
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  • ISO/IEC 18023-2:2006(E) -- 3 Definitions
    18023 1 and the following apply 3 1 element defined item within the abstract syntax 3 2 encoded transmittal transmittal that has been encoded using a technique as defined in this part of ISO IEC 18023 3 3 transmittal hierarchy of DRM class instances and other information organized according to the principles described in ISO IEC 18023 1 ISO IEC 18023 1 3 4 transmittal file file containing all or

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  • ISO/IEC 18023-2:2006(E) -- 4 Concepts
    2 Purpose 4 2 1 Overview The SEDRIS abstract transmittal format provides a platform independent interchange mechanism for SEDRIS transmittals The abstract transmittal format is a conceptual file format that defines the organization of a persistent SEDRIS transmittal as specified in 5 Transmittal structure 4 2 2 SEDRIS transmittal files A SEDRIS transmittal is composed of one or more files When a SEDRIS transmittal is comprised of more than one file one of the files is the root file and all of the other files are object file s as specified in 5 Transmittal structure The root file is the one that is initially accessed when a SEDRIS transmittal is opened 4 2 3 Role The abstract transmittal format specifies an abstract structure that shall be followed by actual transmittal format encodings including that specified in Part 3 of ISO IEC 18023 Other encodings are allowed and would provide representations for their own purposes that are compliant with the abstract transmittal format see 6 3 Conformance of encodings 4 3 Architecture The abstract transmittal format specifies a conceptual representation of a SEDRIS transmittal for storage in a persistent form The objects may be conceptually stored throughout one or more files The exact representation of the SEDRIS transmittal is determined by the particular encoding The abstract transmittal format specifies the allowable structure that shall be satisfied by an encoded SEDRIS transmittal as detailed in 5 Transmittal structure In addition to the data embodied by objects the abstract transmittal format provides for the inclusion of format specific additional data necessary to organize the objects according to the dictates of each particular encoding The additional information is represented in the abstract syntax as encoding elements Encoding elements may include such items as file and block headers for a binary encoding or end of

    Original URL path: http://standards.sedris.org/18023-2/C039352e-html/C039352e_FILES/MAIN_C039352e/Part2/Clause4--Concepts.html (2016-02-11)
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  • ISO/IEC 18023-2:2006(E) -- 5 Transmittal structure
    the encoding to properly represent the content or document the content The symbol ee is defined to allow more visual impact for the other symbols during grammar presentation ee ENCODING ELEMENT 5 2 3 Transmittal grammar The production rule for transmittal is transmittal transmittal root file transmittal content file transmittal content file transmittal object file transmittal image data file transmittal mesh face table data file transmittal data table data file 5 2 4 Transmittal root file grammar The production rule for transmittal root file is transmittal root file BEGIN TRANSMITTAL ROOT FILE ee transmittal file descriptor ee root object reference ee root file descriptor ee DRM OBJECT ee END TRANSMITTAL ROOT FILE transmittal file descriptor TRANSMITTAL FILE FORMAT AND VERSION ee TRANSMITTAL FILE DESCRIPTION ee root object reference DRM OBJECT REFERENCE root file descriptor ee transmittal file list ee referenced transmittal list ee referenced DRM object list ee published DRM object list ee TRANSMITTAL NAME ee ROOT FILE NAME ee transmittal file list ee OBJECT FILE REFERENCE IMAGE DATA FILE REFERENCE MESH FACE TABLE DATA FILE REFERENCE DATA TABLE DATA FILE REFERENCE referenced transmittal list ee TRANSMITTAL NAME ee referenced DRM object list ee TRANSMITTAL REFERENCE ee DRM OBJECT LABEL ee published DRM object list ee DRM OBJECT LABEL ee DRM OBJECT REFERENCE ee 5 2 5 Transmittal object file grammar The production rule for transmittal object file is transmittal object file BEGIN TRANSMITTAL OBJECT FILE ee DRM object file descriptor ee DRM OBJECT ee END TRANSMITTAL DRM OBJECT FILE DRM object file descriptor ee TRANSMITTAL FILE FORMAT AND VERSION ee transmittal file list ee ROOT FILE NAME 5 2 6 Transmittal image file grammar The production rule for transmittal image data file is transmittal image data file BEGIN TRANSMITTAL IMAGE DATA FILE ee DRM object file descriptor ee IMAGE DATA INSTANCE ee END TRANSMITTAL IMAGE DATA FILE 5 2 7 Transmittal mesh face table data file grammar The production rule for transmittal data table data file is transmittal mesh face table data file BEGIN TRANSMITTAL MESH FACE TABLE DATA FILE ee DRM object file descriptor ee MESH FACE TABLE DATA INSTANCE ee END TRANSMITTAL MESH FACE TABLE DATA FILE 5 2 8 Transmittal data table data file grammar The production rule for transmittal data table data file is transmittal data table data file BEGIN TRANSMITTAL DATA TABLE DATA FILE ee DRM object file descriptor ee DATA TABLE DATA INSTANCE ee END TRANSMITTAL DATA TABLE DATA FILE 5 2 9 DRM objects A DRM object represents an instance of a DRM class Therefore instances of abstract DRM classes are not encoded The production rule for DRM OBJECT is DRM OBJECT DRM CLASS NAME ee field list ee aggregate reference list ee associate reference list ee component reference list ee IMAGE DATA REFERENCE included for DRM Image objects only ee MESH FACE TABLE DATA REFERENCE included for DRM Mesh Face Table objects only ee DATA TABLE DATA REFERENCE included for DRM Data Table objects only field list FIELD ee FIELD component

    Original URL path: http://standards.sedris.org/18023-2/C039352e-html/C039352e_FILES/MAIN_C039352e/Part2/Clause5--Transmittal%20Structure.html (2016-02-11)
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