Metadata Primer
for Wisconsin State Agency Web Writers and Administrators
Shiela Pollock (Shiela.Pollock@dpi.wi.gov), (608) 224-5395
Abby Swanton (Abbigail.Swanton@dpi.wi.gov), (608)
224-6174
Reference and Loan Library, Dept. of Public Instruction
What is metadata?
Metadata is structured information about the content and context of information within a
document, webpage, publication, or book. It describes date of content creation and
revisions, provides subject or keywords, title, author, format, creator, etc.
Why is it important?
Metadata is important for the following reasons:
- It improves search relevancy
- Provides a standardized system to classify and label Web content
- Supports Wisconsin.gov portal maintenance and administration
- Supports long-term preservation efforts of state documents
- Provides key information such as who created the page and when it was created
There are also state mandated requirements for participation in the Wisconsin.gov portal and for the preservation of electronic state
documents. See below for more information.
How does it relate to searching?
In the context of search, metadata is any information known about a document beyond the
words contained within it. To provide a consistency, organizations like the World Wide Web
Consortium (W3C) establish guidelines or standards. This consistency, in turn, allows for
software to relate similar or associated bits of information. Without the metadata the
search software would have to rely on the text of a particular document or web page.
To give you a little background search engines collect information in two ways:
- By scanning the text of your document and identifying important keywords from which it
determines the subject of your page.
- By looking at the metadata in the header of your page.
Metadata is usually added to web pages in the form of meta tags contained in the head
section of a page. Since this information is hidden, most users are unaware of these tags,
even though the tags have helped them find the page they are looking for. The result of not
tagging pages is that users will be less likely to find the information. The ability to
search and find information is enhanced by controlled vocabularies linked to the metadata
elements. In addition, as metadata is combined with controlled subject indexes, it allows
more precise searching and document management.
One good reason metadata standards exist is to help web searchers find what they need.
The Wisconsin.gov portal is a good example of this. The metadata allows
the Ultraseek Search Engine to relate information for the users and present it back to
them. The search feature of Ultraseek will find documents containing as many of the terms
entered by the user as possible, ranked so that the documents most relevant to the query
are presented first. Ultraseek also returns relevant results even if they do not contain
all the query terms entered by the user.
How does metadata help preserve state documents?
The Wisconsin Document Depository Program relies on the metadata state agencies use to
describe their web content in order to support the on-going development of preservation
strategies in Wisconsin. The preservation tools currently being used rely on Dublin Core
standards to provide long-term access to electronic state agency information through the
use of a digital asset management system. The ability to map, or crosswalk, the data into
this system is dependent upon the quality of the metadata state agencies provide for the
web content that is being preserved.
Metadata is important to preservation because it provides structured information to
properly describe the content in order to make it accessible in various searchable database
settings. Preservation metadata provides details regarding the format and structure of the
digital content to ensure future rendering and provides proof of authenticity and authority
to the information by associating and identifying which state agency is responsible for and
has rights to the information.
The ability to preserve electronic information for future use is directly linked to the
way the information was initially created. Using a standardized approach in describing web
content with metadata is the first step necessary in achieving a sustainable preservation
system.
I am required to do this?
Executive Order 408 requires Wisconsin State Agencies act aggressively to utilize the
Web to efficiently deliver service to the public. The ultimate objective of the metadata
standard is to assist the public in locating government information using the state
portal's search engine, Ultraseek. To this end, metadata plays a critical role in
helping the public locate government information efficiently and effectively.
Sections 35.81- 35.84 of the Wisconsin Statutes and as amended by 1991 Wisconsin Act 285
require that the Wisconsin Dept. of Public Instruction, Division of Libraries, Technology
and Community Learning work to preserve and make available a record of major state
government programs and assure the availability of state publications for use by the public
throughout Wisconsin now and in the future.
The Wisconsin Digital Archives is part of the Wisconsin Document Depository Program. The
purpose of the Wisconsin Digital Archives is to preserve content found on Wisconsin State
Agency websites and to provide a way for state agencies to continue to fulfill their
statutory obligation to participate in the Wisconsin Document Depository Program with
electronic formats.
Who should I contact for help with metadata?
To make sure your metadata is set up correctly for the UltraSeek Search Engine contact
Shiela Pollock at Shiela.Pollock@dpi.wi.gov.
For help with preservation of state documents, or any question about the Depository
program, contact Abby Swanton at Abbigail.Swanton@dpi.wi.gov.
What does a meta tag look like?
Each meta tag has a name and some associated content. An example used on this page
is:
<meta name="description" content="Describes the importance of metadata for the state
portal for Web adminstrators.">
Does the state of Wisconsin follow a metadata standard?
The State of Wisconsin had adopted the Dublin Core (DC) metadata element set for
describing documents accessible via the Web. This core set of metadata elements is defined
by the Dublin Core Working Group. For more information on the Dublin Core Metadata
Initiative's standards and resources, see http://dublincore.org/. Endorsed by the W3C (World Wide Web Consortium)
in 1998, it has been approved as National Information Standards Institute (NISCO) standard
number ANSI/NISO Z39.85.2001 as well as receiving American National Standards Institute
(ANSI) approval.
Is there more documentation about which tags Wisconsin pages should have?
Yes, see the Best Practices page for more
information on this topic.
Do I need to apply tags to every page?
Following DC practice, you should definitely consider adding metadata to the front page
of your Website and to those pages within your site you especially want users to find
(formal reports, studies, or publications, for example).
Anything else to consider?
Meta tags are not magic and therefore they will not ensure your web pages show up
prominently in each search engines' results pages; they are just one of the many ways of
improving the way your pages are displayed. Some other items to take into consideration
when creating your metadata are:
- Your choice of page title (defined by the <title> tag) -- incorrect page titles
may result in search engines listing your page as "no title" or simply by its URL
- Ensure that relevant keywords crop up in your body text, headings, and subheadings
Where can I get more information?
As noted above, both Abby and Shiela are available to help.
Shiela Pollock (Shiela.Pollock@dpi.wi.gov)
Abby Swanton (Abbigail.Swanton@dpi.wi.gov)
Staff from the Reference and Loan Library are contracted by the Dept. of Administration
to oversee the implementation and coordination of metadata issue for the Wisconsin state
government portal. Contact either Shiela or Abby for help, advice or to report a
problem.
Any good articles you might suggest on metadata?
If you want to investigate further, we suggest:
Best practices
for digital archiving: An information life cycle approach. By: Hodge, Gail. D-Lib
Magazine, 2000, Vol. 6, no1.
http://www.dlib.org/dlib/january00/01hodge.html (accessed October 9, 2008).
Formats for digital preservation: A review of
alternatives and issues. By: Hodge, Gail; Anderson, Nikkia. Information Services & Use,
2007, Vol. 27 Issue 1/2, p45-63, 19p, 2 charts; (AN 25365536)
Metadata for electronic information
resources: From variety to interoperability. By: Hodge, Gail. Information Services &
Use, 2005, Vol. 25 Issue 1, p35-45, 11p; (AN 17671295)
Preservation of and permanent access to electronic
information resources: A system perspective. By: Hodge, Gail. Information Services &
Use, 2005, Vol. 25 Issue 1, p47-57, 11p; (AN 17671294)
Webcontent.gov. Federal Web Managers Council. 30 June 2009.
Articles provided by the Wisconsin Dept. of Public Instruction's BadgerLink Program.
BadgerLink's goal is to provide access to quality online information resource, fulltext
periodicals and newspapers, health, business, and education materials for Wisconsin
residents. For more information see: http://www.badgerlink.net. If you have any problems or questions please
contact the BadgerLink Coordinator at dpibadgerli@dpi.wi.gov.
Last updated on 8/11/2009 4:46:48 PM