1、BS ISO28178:2009ICS 35.240.30; 37.100.99NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDGraphic technology Exchange formatfor colour and processcontrol data using XMLor ASCII textThis British Standardwas published underthe authority of theStandards Policy andStr
2、ategy Committee on 30November 2009. BSI 2009ISBN 978 0 580 57836 6Amendments/corrigenda issued since publicationDate CommentsBS ISO 28178:2009National forewordThis British Standard is the UK implementation of ISO 28178:2009.The UK participation in its preparation was entrusted to TechnicalCommittee
3、PAI/43, Graphic technology.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisionsof a contract. Users are responsible for its correct application.Compliance with a British Standard can
4、not confer immunityfrom legal obligations.BS ISO 28178:2009Reference numberISO 28178:2009(E)ISO 2009INTERNATIONAL STANDARD ISO28178First edition2009-03-15Graphic technology Exchange format for colour and process control data using XML or ASCII text Technologie graphique Format dchange pour les donne
5、s de couleur et de contrle de procd en utilisant du texte XML ou ASCII BS ISO 28178:2009ISO 28178:2009(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are
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10、blished in Switzerland ii ISO 2009 All rights reservedBS ISO 28178:2009ISO 28178:2009(E) ISO 2009 All rights reserved iiiContents Page Foreword iv Introduction.v 1 Scope1 2 Normative references1 3 Terms and definitions .1 4 Requirements.2 4.1 General description of a conforming file 2 4.2 Tags and k
11、eywords .3 4.3 Data tables .11 Annex A (informative) Advantages of an XML data reporting format16 Annex B (informative) Tag and keyword examples.18 Annex C (informative) Sample files.22 Annex D (informative) Example of use of user-defined keywords.26 Annex E (informative) Corresponding tags and keyw
12、ords used in database AMPAC28 Bibliography36 BS ISO 28178:2009ISO 28178:2009(E) iv ISO 2009 All rights reservedForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards i
13、s normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take par
14、t in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to p
15、repare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility tha
16、t some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 28178 was prepared by Technical Committee ISO/TC 130, Graphic technology, and is based on ANSI CGATS 17:2005. BS ISO 28178:2009ISO 28178:2
17、009(E) ISO 2009 All rights reserved vIntroduction A number of International Standards used by the graphic technology community require the reporting of measured and/or computed data. Several of these standards, e.g. the ISO 12642 series and ISO 13655, contain suggested formats for the data to be exc
18、hanged. These have used the ASCII keyword-value pair approach and have been widely used by some industry segments. However, there has never been a consolidated definition of the various formats. This International Standard is intended to support all existing and future graphic arts standards that re
19、quire the exchange of measured, computed, or process control data and the associated metadata necessary for its proper interpretation. It is specifically not intended for graphic arts content data, which are covered by ISO 15930 and ISO 12639. In reviewing the needs of such a format the following re
20、quirements were identified: applications based on the existing ASCII formats not be made obsolete; data need to be in a form that is both human-readable (once the digital file has been displayed using standard editors, or file readers) and machine-readable; data need to be readable by automated prog
21、rams to extract the necessary information; data files need to be extensible by end users in such a way as to allow additional information to be included without breaking automated readers of the file; data files need to be capable of being created by automated programs; the format needs to allow mul
22、tiple language representation of data. The file formats chosen to accomplish this task are a combination of XML and extensions of the existing ASCII keyword-value file format, coupled with the necessary tools to allow appropriate conversions to and from XML from ASCII keyword-value files. However, e
23、ither the XML file format or the ASCII keyword-value file format can be used independently. Annex E shows the AMPAC (see ISO/TR 16044) coding for each of the ASCII keywords. These formats make use of predefined XML tags and ASCII keywords. Values are associated with the tags and keywords and remain
24、in effect until another instance of the tag or keyword. Provision is made to allow the use of data tables and to separately define the format within data tables. Multiple occurrences of such data tables within a single file are also permitted. User-defined tags and keywords are also allowed. See Ann
25、ex A for a discussion of the advantages of an XML data reporting format and references to a demonstration suite. A demonstration suite based on this International Standard has been made available for use as part of a testing and development program. It is available from NPES The Association for Supp
26、liers of Printing, Publishing and Converting Technologies, at http:/www.npes.org/standards/tools.html. See A.5 for more information. Subsequent to the final approval of this International Standard, ISO/TC 130 decided that additional verification of the XML implementation was desirable and an editing
27、 committee was formed to address this issue. The editing committee reported that the vendor of a commercial XML data exchange application had success in mapping both the ASCII and XML portions of this International Standard into their application. This was felt to provide a verification of the XML i
28、mplementation proposed in this International Standard. BS ISO 28178:2009BS ISO 28178:2009INTERNATIONAL STANDARD ISO 28178:2009(E) ISO 2009 All rights reserved 1Graphic technology Exchange format for colour and process control data using XML or ASCII text 1 Scope This International Standard defines a
29、n exchange format for colour and process control data (and the associated metadata necessary for its proper interpretation) in electronic form using either XML or ASCII formatted data files. It maintains human readability of the data as well as enabling machine readability. It includes a series of p
30、redefined tags and keywords, and provides extensibility through provision for the dynamic definition of additional tags and keywords as necessary. It is focused primarily on spectral measurement data, colorimetric data, and densitometric data. This International Standard is intended to be used in co
31、njunction with other standards that will define the required data, and tags or keywords for specific data exchange applications. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For
32、 undated references, the latest edition of the referenced document (including any amendments) applies. ISO/IEC 646, Information technology ISO 7-bit coded character set for information interchange Extensible Markup Language (XML) 1.0 (2nd ed.), World Wide Web Consortium (W3C), W3C Recommendation 6 O
33、ctober 2000. Available at http:/www.w3.org XSL Transformations (XSLT) Version 1.0, World Wide Web Consortium (W3C), W3C Recommendation 16 November 1999. Available at http:/www.w3.org 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 data format
34、 identifier predefined set of characters, without intervening spaces, forming a unique word that is used to identify the presence of a defined item of data in a subsequent data table 3.2 keyword predefined set of characters, without intervening spaces, forming a unique word that is used to identify
35、the presence of a defined item of information 3.3 schema XML document that, following the rules established by the World Wide Web Consortium, defines the structure of a class of XML documents BS ISO 28178:2009ISO 28178:2009(E) 2 ISO 2009 All rights reserved3.4 value information immediately following
36、 a keyword that represents the data content or “value” associated with that keyword 4 Requirements 4.1 General description of a conforming file 4.1.1 XML format This file format is an XML format that complies with Extensible Markup Language (XML) 1.0. The format makes use of predefined tags that ide
37、ntify information commonly used to describe graphic arts samples. In addition, users of this format are allowed to define tags to tailor the format to their specific needs according to the rules of XML namespace. The data file is divided into two sections. The preamble is the first section. This sec
38、tion provides general information and describes the conditions under which data was collected. The preamble tag is iso28178.preamble. Tags used in the preamble are listed in 4.2. The data section is the second section, which is further divided into two parts. The first part of the data section provi
39、des the information that describes the type and location of the table contents; the second section contains the data values. The schema associated with the XML format defined in this International Standard is contained in file iso28178_data.xsd, which is an essential normative part of this Internati
40、onal Standard. This International Standard also provides structural XML tags that are needed for the proper specification of an XML document instance. NOTE See Annex A for a discussion on the need and application of the XML data reporting format. 4.1.2 ASCII format This file format is an ASCII forma
41、t keyword-value file. It makes use of predefined keywords and data tables. Values are associated with the keyword that precedes them and remain in effect until another instance of the keyword-value pair. Data values are delimited by the BEGIN_DATA and END_DATA keywords. Keywords and values, as well
42、as fields within data tables, are separated by white space. Valid white space characters are space (position 2/0 of ISO/IEC 646), carriage return (position 0/13 of ISO/IEC 646), newline (position 0/10 of ISO/IEC 646), and tab (position 0/9 of ISO/IEC 646). Keywords may be separated from values using
43、 any valid white space character. Only the space and tab may precede a keyword on a line. Comments are preceded by a single comment character (a single character keyword). The comment character is the “#” (position 2/3 of ISO/IEC 646) symbol. Comments may begin any place on a line, and are terminate
44、d by a newline or carriage return character. 4.1.3 Exchanged data file structure A file containing measurement data would normally be structured as shown in Figure 1. This structure allows multiple tables of data within a single exchange file. BS ISO 28178:2009ISO 28178:2009(E) ISO 2009 All rights r
45、eserved 3Preamble File header containing the tags/keywords Originator, File Descriptor, Created Data Section 1 Header Table Descriptor/Table Name plus tags/keywords Data The data table and its formatting information # # Data Section N Header Table Descriptor/Table Name plus tags/keywords Data The da
46、ta table and its formatting information Figure 1 File structure 4.2 Tags and keywords 4.2.1 General Most tags and keywords may appear in the file in any order, and may appear multiple times within the file. Values associated with tags and keywords that appear more than once shall be replaced by succ
47、essive instances, except for KEYWORD, COMPUTATIONAL_PARAMETER, and WEIGHTING_FUNCTION. Each identifier shall show whether it may be used only once or multiple times within a given table. Tags and keywords that describe data tables, however, shall be defined before the data table. Table 1 lists these
48、 tags and keywords. These tags are described in greater detail below. Table 1 XML tags and ASCII keywords that appear in a defined order Function XML tag ASCII keyword data table width NUMBER_OF_FIELDS data format delimiters BEGIN_DATA_FORMAT END_DATA_FORMAT data table length NUMBER_OF_SETS data tab
49、le delimiters BEGIN_DATA END_DATA BS ISO 28178:2009ISO 28178:2009(E) 4 ISO 2009 All rights reservedData format delimiters shall be preceded by a data table width tag or keyword. Data table delimiters shall be preceded by a data table length tag or keyword. In the ASCII format, BEGIN_/END_ keywords begin and end the data format or table data. In the XML format, tags have parameters and/or values and a standard syntax is used, e.g. data format identifiers . Values for tags and keywords that describe data tables shall b
