Managing Digitization Activities · 123
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Purdue University
quality CD-ROMs. The archive copies on CD-ROM and NAS will be in uncompressed TIF format. The access
copies will be high quality JPEG images. Those images are used for creating hard copy reproductions upon request.
On-line copies will be available publicly as JPEG 2000 images.
File Naming Convention
Files are named based on their location within the collection's finding aid. Each file begins with the person's last
name followed by a ‘b’ for box followed by the box number, than an ‘f’ for folder followed by the folder number
and then an ‘i’ followed by the item number. E.g. earhart-b1f10i5. In the case of corporate names an abbreviation
will be used. For example, the Purdue University Retirees Association would be pura-b1f10i5. All letters should
be in lower case.
Technology re-assessment
Sustainability requires that media and servers be revaluated on a regular basis to ensure that the objects are still
accessible. 5 floppy inch drives do not exist today. As stewards of archival objects it is essential to ensure the
viability of those objects over time.
Intellectual Property Concerns
Watermarks fall into two categories visible and invisible. Neither type prevents a user from downloading the image
for non-authorized use. Visible watermarks simply add visible text or image showing the ownership of the object.
Invisible watermarks are embedded in the file. If a file is posted online at a resolution of 300 dpi a user could copy
it down and change it to 72 dpi. In doing so it is possible to render the invisible water mark useless. The use of
watermarks enables Purdue University to identify its intellectual property.
Metadata
Metadata falls into 4 different categories.
Descriptive Metadata Descriptors that describe the intellectual content of the object.
Administrative
Metadata
Data that describes ownership and rights management for the object.
Structural Metadata Data that describes the relations between several objects.
Technical Metadata Data that describes the structure of the object such as resolution, pixel dimensions,
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