ERIC Number: ED353988
Record Type: Non-Journal
Publication Date: 1992-Nov
Reference Count: N/A
A Hybrid Systems Approach to Preservation of Printed Materials.
Intended to stimulate thought and discussion, this report compares micrographics and digital imaging as tools for the preservation of printed materials. The topics covered include: (1) the advantages and disadvantages of each technology; (2) trade-offs involved in selecting one technology over another; (3) benefits of using a hybrid approach; (4) whether the page should be captured first to film and converted to digital, captured digitally and converted to film, or whether the two can be done simultaneously; (5) the options for converting from film to digital and back again; (6) cost factors, including how to maximize image quality while minimizing cost; (7) the roles of ASCII text and OCR (optical character recognition); (8) resolution issues for each technology; and (9) standards. It is concluded that microfilm will preserve printed materials very well and that the equipment needed to transfer this material to other media will be available for centuries; and that optical storage can be considered on a selective basis provided there is a plan to recopy the media prior to any substantial degradation and before the technology becomes obsolete. It is recommended that, for the longer term, practitioners should immediately begin planning for, and designing, the hybrid archival preservation system of the future. It is suggested that such a system could combine the strengths of micrographics with digital imaging, which contributes access, distribution, and transmission strengths. A discussion of digital imaging resolution, a summary of alternative storage possibilities, data storage costs in a variety of formats, a comparison of film and digital costs, and a list of resources for equipment performance standards are appended. Examples of images copied using different media are also provided. (KRN)
Descriptors: Access to Information, Comparative Analysis, Costs, Evaluation Criteria, Information Storage, Microreproduction, Optical Scanners, Preservation, Standards, Technological Advancement
Commission on Preservation and Access, 1400 16th Street, N.W., Suite 740, Washington, DC 20036-2117 ($10 prepaid).
Publication Type: Opinion Papers; Reports - Evaluative
Education Level: N/A
Sponsor: Commission on Preservation and Access, Washington, DC.
Authoring Institution: N/A