Libraries and archives with large, complex, and diverse collections of digital materials are only beginning to test 640-822 strategies that normalize various types of holdings by converting digital records from the great multiplicity of formats into a smaller, more manageable number of standard formats (University of the State of New York). A repository might accept textual documents only in one or a few commonly available commercial word processing formats or require that documents conform to standards like SGML (ISO 8879). Databases might be stored in one or a few common formats or converted to a SQL (Structured 642-426 Query Language) compliant format, while image files might conform to the tagged image file format (TIFF) with standard compression algorithms.
This approach has the advantage of preserving more of the display, dissemination, and computational characteristics of the original materials, while reducing the large variety of customized transformations that would otherwise be necessary to migrate material to future generations of technology. The strategy rests on the assumption that software products which are either compliant with widely 642-523 adopted standards or are widely dispersed in the marketplace are less volatile than the software market as a whole.
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