Definitions
Archival Image
An image meant to have lasting utility. Archival images are usually kept off-line on an inexpensive storage medium such as CD-ROM or magnetic tape, in a secure environment. Archival images are of a higher resolution and quality than the digital image delivered to the user on-screen. The file format most often associated with archival images is TIFF, or Tagged Image File Format, as compared to on-screen viewing file formats, which are usually JPEGs and GIFs. These images are usually scanned at 800 DPI or greater. (Colorado Digitization Project)
Archive
An organized collection of the noncurrent records of an institution, government, organization, or corporate body, and/or the personal papers of an individual, family, or group, preserved in a repository for their historical value. Managed and maintained by a librarian with special training known as an archivist. Also refers to the agency which selects, preserves, and provides access to archival materials. (ODLIS: Online Dictionary of Library and Information Science; Copyright 2001 by Joan M. Reitz. All Rights Reserved.)
Catalog Number
Number used to uniquely identify and locate the photograph in it's home repository. (Colorado Digitization Project)
Creator
Person/s or organization/s primarily responsible for creating the intellectual content of the resource. For example: the author of written documents; artists, photographers, the collector of natural specimens or artifacts, or illustrators of visual resources. (Colorado Digitization Project)
Curriculum Toolkit
A printed or online guide that brings together in one place practical information needed to accomplish a goal or begin a project, including but not limited to case studies, action plans, policies, learning modules, resource lists, useful terminology, important contacts, etc. (ODLIS: Online Dictionary of Library and Information Science; Copyright 2001 by Joan M. Reitz. All Rights Reserved.)
Database
A collection of data organized especially for rapid search and retrieval (as by a computer) (Merriam-Webster Collegiate Dictionary, © 2001 by Merriam-Webster, Incorporated)
Date
Date of creation or availability of the digital resource; may be approximated by agency submitting record. (Colorado Digitization Project)
Description
A textual description of the content of the resource, including abstracts in the case of document-like objects or content descriptions in the case of visual resources, or other description not included in other fields. (Colorado Digitization Project)
DPI
(Dots Per Inch) The measurement of the resolution of display and printing systems. A typical CRT screen provides 96 dpi, which provides 9,216 dots per square inch (96x96). (Merriam-Webster Collegiate Dictionary, © 2001 by Merriam-Webster, Incorporated)
Gif
(Graphics Interchange Format) A popular bitmapped graphics file format developed by
CompuServe. It supports 8-bit color (256 colors) and is widely used on the Web, because the files compress well. (Copyright (©) 1981-2001 The Computer Language Company Inc All rights reserved)
JPEG
Joint Photographic Experts Group. A compression algorithm for condensing the size of image files. JPEGs are helpful in allowing access to full screen image files on-line because they require less storage and are therefore quicker to download into a web page. (Colorado Digitization Project)
Keyword
A significant word or phrase in the title, subject headings (descriptors), abstract, or text of a record in a bibliographic database which can be used as a search term in a keywords search to retrieve all the records containing the word or phrase. (ODLIS: Online Dictionary of Library and Information Science; Copyright 2001 by Joan M. Reitz. All Rights Reserved.)
Oral Histories
The recording or transcription of an interview with a person whose memories of historical events are considered by the interviewer to be worth preserving. Also refers to an historical work based on data collected orally. Such works are often preserved in archives and special collections. (ODLIS: Online Dictionary of Library and Information Science; Copyright 2001 by Joan M. Reitz. All Rights Reserved.)
PDF Format
The format used for page description in the Adobe Acrobat document exchange program. In Acrobat, the PDF Writer converts most DOS, Windows, UNIX, and Macintosh data files into PDF format. Since the original fonts are embedded in the PDF file, there is no need to install them on the receiving machine. With Adobe Acrobat Reader installed on the receiving machine, PDF files can be displayed and printed in original format. (ODLIS: Online Dictionary of Library and Information Science; Copyright 2001 by Joan M. Reitz. All Rights Reserved.)
Primary Source
In scholarship, a manuscript, contemporary record, or authoritative document related to a subject of inquiry, which provides first-hand knowledge used in the preparation of a derivative work. Primary sources include correspondence, diaries and other personal papers, photographs, film footage, transcripts of interviews, government documents, public records, newspaper clippings, etc. Compare with secondary source and tertiary source. (ODLIS: Online Dictionary of Library and Information Science; Copyright 2001 by Joan M. Reitz. All Rights Reserved.)
Repository
The location, usually within a library or archive, where manuscripts, rare books, papers, photographs, government documents, and other records of historical interest are permanently stored. Whether a repository is open or closed to the public depends on the policy of the institution. (ODLIS: Online Dictionary of Library and Information Science; Copyright 2001 by Joan M. Reitz. All Rights Reserved.)
Subjects
Topic of the content of the resource using established Library of Congress Subject Headings. Typically, subject will be expressed as keywords or phrases that describe the subject of the content of the resource, or terms related to significant associations of people, places, and events, or other contextual information. (Colorado Digitization Project)
Thumbnail
A very small image of a page of text or graphic element, used in a Web page to represent the same image in larger format. By clicking on the miniature, the user can retrieve the full-size image. Since thumbnail graphics take less time to load, they are often used in Web pages to provide the option of viewing large images without significantly increasing the time it takes to transmit the document. (ODLIS: Online Dictionary of Library and Information Science; Copyright 2001 by Joan M. Reitz. All Rights Reserved.)
TIF / TIFF
Tagged Image/Interchange File Format. A file storage format implemented on a wide variety of computer systems, usually used for archival scans. (Colorado Digitization Project)
Topic Search
A pre-defined subject for research or discussion.
Webliography
A list of electronic documents on a particular topic. (Word-a-day)
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