XML and DAM technologies and cross-media publishing

DAM is the abbreviation of "Digital Asset Management". It also has another name "Content Management" (abbreviated as CM in English). With the development of cross-media publishing, DAM has received more and more attention from the publishing industry. DAM is not only a tool for digital information storage management, it is gradually becoming the core of the publishing system of the Internet era. The technical advances that DAM brings to cross-media publishing have been well documented in the application of Chinese publishing users.

First, changes in the information life cycle make DAM embark on the front desk of information release

While affecting the editing, production, and distribution of traditional publishing, the Internet has profoundly influenced the published information itself. The carrier of publishing information is no longer a single paper media; the organization of publishing information is no longer a simple linear structure, and it is particularly important that the life cycle of publishing information has also been greatly changed with the advent of the Internet. After the newspaper has completed its first life cycle, its digital form will begin the second-person Internet-based life cycle of newspaper news and information. Digitalized publishing information has been searched, reused, traded, and rewritten to become a trend and trend.

With this trend and trend, cross-media publishing technology has emerged. Making and publishing many times became the goal pursued by the publishing industry. Under such demand, traditional document management systems and database systems are somewhat inefficient. Fortunately, the XML-based DAM system can exactly meet the requirements of cross-media publishing. First, XML documents with metadata do not have data related to the performance of published information, so that the published content can theoretically be published on any medium. The DAM system is responsible for the responsibility of managing XML documents in cross-media publishing systems. The Internet has enabled DAM to embark on the forefront of information publishing and to become the core technology of cross-media publishing.

Second, DAM is the foundation of cross-media publishing system

It should be said that DAM is not specifically prepared for cross-media publishing. Only specially designed DAMs that meet special functional requirements are suitable for cross-media publishing. A DAM system that meets this requirement can be represented by the following figure: (See Figure 1)



figure 1

In the system shown in the figure above, XML structured processing of publishing information, storage and retrieval of XML data, and cross-media publishing of publishing information constitute the technical core of the system.

It should be said that until today, most of the commonly used text editing and layout software is for printing and printing. To make the result data of these software outputs stored in the DAM system, it must be normalized to convert these data into XML data. The automatic processing of this kind of conversion is a goal that people have been pursuing, and the current technology is far from people's expectations, so that the demand for such data conversion has spawned a data processing industry that specializes in converting data formats. It is also necessary to edit the stored data while storing the data in the XML format in the data storage system of the DAM system. A convenient XML editor is very important.

The XML structuring of publishing information has laid a good data foundation for automatic cross-media publishing. The XML data is accompanied by style data for displaying the XSLT, and publication of information on the Internet can be resolved. However, the publication of XML data to print and CD-ROMs will take some time, especially if RIP does not support XML output now. An alternative method is to embed XML data directly into the layout of the layout software through a soft plug-in technology, and transfer the XML data to PS data by the layout software. After the publication of the paper media was resolved, the PS was converted to PDF, and the issue of the release of the optical disc was solved.

Cross-media information publishing is just one aspect of DAM providing information reuse. The retrieval, mining, and transaction of publishing information can all be realized in the DAM system, so that the life cycle of publishing information can be effectively extended. The organic combination of DAM technology and cross-media publishing technology has provided a broad space for the development of electronic publishing technology.

Third, based on DAM Founder cross media publishing system

Founder Electronics has applied DAM technology and XGML technology to a cross-media publishing system since the 5th year. The products currently being developed include a cross-media publishing system serving China's newspaper industry and a cross-media publishing system serving the publishing of dictionaries. Founder Electronics’ newspaper cross-media publishing system is shown in the figure below (see Figure 2)



figure 2

In the news DAM system shown in the figure above, the NITF format based on XML is adopted as the core data standard, thereby ensuring the feasibility of cross-media publishing on data. The XML filtering program converts the output format of the software used by journalists to write manuscripts to the NITF format. The XML editor implements the editing of existing manuscripts and the preparation of new manuscripts. The output of this system is undoubtedly cross-media.

The cross-media publishing system published by Founder Electronics' dictionary is as follows: (See Figure 3)



image 3

This system was developed since 1995. At the time, there was no XML, so SGML was adopted. Dictionaries are a type of publication that has a relatively long life cycle, but the partial modification of certain professional entries is a must. The original intention of designing this system is to meet the needs of printing republishing and CD publishing. Fortunately, SGML was originally chosen, making it very natural to extend the system's publishing capabilities to the Internet. The characteristic of this system lies in that it realizes the automatic conversion of the printed dictionaries electronic data format to the SGML format.

Fourth, the prospect of DAM in the field of cross-media publishing

DAM has already provided convincing applications in the publishing field, but there are still many problems to be studied and solved. The data analysis function in DAM system is usually realized through data mining technology. The traditional data mining technology is mainly based on structured data in plain text data and relational database, and DAM and XML data. How to conduct data mining is a question worth studying. Another problem that needs to be solved for cross-media publishing based on DAM is the automatic summarization problem. Due to the difference in the distribution media, the content in the DAM cannot be simply published directly. In particular, for a small-screen publishing device, it is more necessary to abbreviate the longer content information into shorter release information. Only the automatic abbreviations of the content are implemented into shorter release information. Only when the automatic abbreviation function of the content is implemented can the need of the automatic publishing function on the small-screen publishing device be met. Before the DAM-oriented text editing tool software was widely accepted, the need to automatically convert the results of printing and printing typesetting software into DAM data for cross-media publishing will continue to exist. If the problem of automatic format conversion cannot be solved well, this problem will become a bottleneck problem that hinders the development of published DAM.

Due to the characteristics of cross-media publishing and the characteristics of publishing information, the publishing-oriented DAM system has the irreplaceable advantages of other current information management systems. From this point of view, regardless of the DAM system itself or the DAM application system, the potential application requirements will continue to grow, especially due to the hypermedia nature of the Internet information release, which makes the DAM system facing the Internet information release must have the addition of text, images, The data description, management, and publishing functions of video, audio, and animation other than graphics. Fortunately, the development of universal DAM technology has laid a solid foundation.

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