In the example above, "currency" is an attribute of "Price", and the attribute's value is "Euro". XML elements can have attributes that further describe them, such as the following:
X word for social studies code#
(ASCII stands for American Standard Code for Information Interchange.) See also EBCDIC. Most IBM-compatible personal computers do use an IBM "extended" character set that includes international characters, line and box drawing characters, Greek letters, and mathematical symbols. Because a byte can have a total of 256 possible values, there are an additional 128 possible characters that can be encoded into a byte, but there is no formal ASCII standard for those additional 128 characters.
Example: In ASCII, the number "7" is treated as a character and is encoded as: 00010111. The ASCII standard uses 7 of the 8 bits in a byte to define the codes for 128 characters. ASCIIĪ character-encoding scheme used by many computers.
X word for social studies archive#
( noun) A data archive is a site where machine-readable materials are stored, preserved, and possibly redistributed to individuals interested in using the materials. Archival storage contributes to ensuring business continuity for ICPSR and is a component of the disaster planning at ICPSR. ICPSR preserves the ability to regenerate the Dissemination Information Package (DIP) we do not preserve the software-dependent files (e.g., SAS, SPSS, Stata) that are distributed. The Archival Storage function at ICPSR provides onsite and offsite redundancy through online copies (and a tape copy as extra backup) of ICPSR's digital content, both the archival copies and the access copies. "The OAIS entity that contains the services and functions used for the storage and retrieval of Archival Information Packages" ( Reference Model for an Open Archival Information System (OAIS), 2012). The ICPSR AIP consists of the original files deposited, processed versions of data files and documentation, normalized files, and associated metadata. "An Information Package, consisting of the Content Information and the associated Preservation Description Information (PDI), which is preserved within an OAIS" ( Reference Model for an Open Archival Information System (OAIS), 2012). "An Archival Information Package whose Content Information is an aggregation of other Archival Information Packages" ( Reference Model for an Open Archival Information System (OAIS), 2012). The digital preservation function preserves the capability to regenerate the DIPs (Dissemination Information Packages) as needed over time. Example: "The Census Bureau aggregates data to preserve the confidentiality of individuals." aggregate dataĭata that have been aggregated. ( verb) To total data from smaller units into a large unit. For instance, the population of a county is an aggregate of the populations of the cities, rural areas, etc., that comprise the county.
( noun) A total created from smaller units. The OAIS Reference Model identifies the policies and other documents that are the responsibility of Administration and are required by an OAIS. "The OAIS entity that contains the services and functions needed to control the operation of the other OAIS functional entities on a day-to-day basis" ( Reference Model for an Open Archival Information System (OAIS), 2012). Access is "the OAIS entity that contains the services and functions which make the archival information holdings and related services visible to Consumers" ( Reference Model for an Open Archival Information System (OAIS), 2012). OAIS requires that an archive be able to find and deliver digital content to authorized users delivery may be to an individual or to an access delivery system. Digital preservation is a requirement for providing long-term access to digital content. To supplement this glossary with more terms related to computing, consult the Encyclopedia of Computer Science, Fourth Edition, edited by Anthony Ralston and Edwin D. Some terms were also added from XML Terms: Jargon terms in XML and what they mean. The following glossary is provided as a resource for data producers, data librarians, data users, and is based on a glossary prepared by James Jacobs, formerly at the University of California, San Diego.
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