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A

Access Images

Digital images created from another digital image through some kind of automated process, usually involving a loss of information. Techniques used to create derived images include sampling to a lower resolution, using lossy compression techniques, or altering an image using image processing techniques.

Administrative Rules of Montana

Administrative Rules of Montana (ARM)

These are the official procedural rules that support the implementation of Montana laws.

The Montana Secretary of State’s Administrative Rules Services publishes the administrative rules promulgated by state agencies. Administrative rules are developed under a process outlined in the Montana Administrative Procedure Act. That process requires state agencies to provide notice to the public when they wish to adopt, amend or repeal administrative rules. The notices are compiled in the Montana Administrative Register (MAR). Once adopted, administrative rules are published in the Administrative Rules of Montana (ARM) and have the force of law. (Montana Secretary of State ARM website)

The State Library Commission has rulemaking authority for the agency.

ALA

American Library Association
Founded in 1876, ALA is the national association serving the interests of libraries and librarians.

Americans with Disabilities Act

Americans with Disabilities Act (ADA)

National legislation giving civil rights protection to individuals with disabilities.

In addition to issues around physical access to buildings and services, there are specific policies and requirements for access to information.

  • ADA Standards Compliance- Information on the Americans with Disabilities Act (ADA) standards that were published by the Department of Justice in 2010
  • Section 508 -  an amendment to the United States Workforce Rehabilitation Act of 1973, a federal law mandating that all electronic and information technology developed, procured, maintained, or used by the federal government be accessible to people with disabilities
  • WCAG 2.0 Standards - web accessibility standards

ARM

Administrative Rules of Montana (ARM)

These are the official procedural rules that support the implementation of Montana laws.

The Montana Secretary of State’s Administrative Rules Services publishes the administrative rules promulgated by state agencies. Administrative rules are developed under a process outlined in the Montana Administrative Procedure Act. That process requires state agencies to provide notice to the public when they wish to adopt, amend or repeal administrative rules. The notices are compiled in the Montana Administrative Register (MAR). Once adopted, administrative rules are published in the Administrative Rules of Montana (ARM) and have the force of law. (Montana Secretary of State ARM website)

The State Library Commission has rulemaking authority for the agency.

B

Bit Depth

Bit depth quantifies how many unique colors are available in an image’s color palette in terms of the number of 0’s and 1’s, or “bits.” 

(Also see Dynamic Range)

C

CE

Continuing Education

Opportunities provided for personnel to improve and grow in their professions.

Learn more about MSL's Continuing Education program.

Child folder

Child folders are stored in parent folders and can house other child folders and digital items Montana History Portal

Collection folder

The folder where all of a Portal collection’s digital files and folder hierarchy are saved. This folder is named the same as the Portal Collection (e.g. Montana Yearbook Collection)

Compression

The reduction of image file size for processing, storage, and transmission. The quality of the image may be affected by the compression techniques used and the level of compression applied. There are two types of compression: 
  1. Lossless compression is a process that reduces the storage space needed for an image file without loss of data. If an image has undergone lossless compression, it will be identical to the image before it was compressed.
  2. Lossy compression is another process that reduces the storage space needed for an image file, but it discards information. If an image that has undergone lossy compression is decompressed, it will differ from the image before it was compressed, even though the difference may be difficult for the human eye to detect.
There are both standard and nonstandard compression techniques available. In general, it is better to employ a compression technique that is supported by standards, is nonproprietary, and maintained over time. In selecting a compression technique, it is necessary to consider the attributes of the original. Some compression techniques are designed to compress text, others are designed to compress pictures.

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