Monday, January 16, 2012

Week three reading:Metadata

Setting the Stage - Gilliland
-Metadata:data about data
-as information resources increase put online by general public- metadata considerations no longer solely the province of information professionals
-increasingly important to understanding critical roles of different types of metadata to ensure accessibility, authority, inter operable, scalability, preserve cultural heritage information and record keeping systems
*-metadata is the sum total of what one can say about any information object at any level of aggregation
-all information objects have 3 features which can be and should be reflected through metadata
      -content:what the object contains or is about and is intrinsic to an information object
      -context:who what where when why and how aspects associated with the objects creation and is extrinsic to an information object
      -structure:formal notes of association within or among individual information objects and can be intristic, extrinsic or both
-to professionals metadata is the value added information that they create to arrange, describe, track and otehrwise enhance access to information objects
-mark-up languages (HTML/XML) provide standardize ways to structure and express these standards for machine processing
-data structure standards:categories and containers ie:MARC
-data value standards:controlled vocabularies ie:Library of Congress subject headings
-data content standards: cataloging rules and codes ie:AARC/RDA
-data format/technical interchange standards: metadata standards for machine readable ie:MARC21
-Metadata categories:
  -administrative:managing collection
  -descriptive: used to identify collection
  -preservation: preserve and predict access of collection
  -use: level and type of use of collection
  -technical: how system functions or how metadata behaves
-Primary function of metadata :
-creation, multi version, re-use and contextualization of information objects
-validation
-search and retrieval
-utilization and preservation
-disposition
FYI:
-metadata des not have to be digitalized
-relates to more than the description of object
-can come from a variety of sources
-continues to accrue defining information
-distinction between what constitutes data and what constitutes metadata can be fluid and may depend on how one wishes to use a certain information object

-Why is metadata important?
-increase inaccessibility
-retention to context
-expanding use
-learning metadata for search objects
-mutli-versions
-legal issues
-preservation

An Overview of the Dublin Core Data Model-Miller
-DCMI is an international effort designed to foster census across disciplines for the discovery-oriented description of diverse resources in an electronic environment
-DCMI Requirements:
internationalization
modularization/extensibility
element identity
semantic refinement
indentification of encoding scheme
specification of controlled vocabulary
-there are resources in the world that we would like to describe
-these resources have properties associate with them
-properties are a specific type of resource
-classes of objects are specific type of resource
Addressing functional requirements
-element identity: very important that both writer and reader understand the same meaning for term
-modality/extensibility: name space are simply away to tie a specific use of a word or context to the dictionary/scheme where the intended definition is found
-semantic refinements: RDF processor recognizes the sub-type relationship that exists between two semantic declarations, ie: Michelangelo- as painter and as contributor to Sistine Chapel
-Compound Values: resources may be combined in various descriptive ways, ie: a person may an a name, email, affiliation and also may have various properties characteristics such as creator, publisher, subject associated with them

Working with Endnote
Endnote is a bibliographic software program that is used for literature searches, to develop personal libraries of references and create and format citations for papers/publishing

Uses for Endnote:
-to import citation from saved literature Sachs
-develop a personal library of references
-create and format citation for papers and publications

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