Tuesday, September 28, 2010

Unit 5: Information Organization by Database, Metadata

Metadata:

My basic understanding of metadata is that it is “information about information”. But after reading Anne J. Gilliland’s article, it’s clear that there is a whole lot to it than my original thought. It seems that each organization, group, or institution creates their own definition of metadata, or at least the metadata that they are utilizing. We can also create our own metadata by creating tags, which we also read about in “Everything is Miscellaneous” by David Weinberger. User-created metadata allows us to personalize web pages and sites and as Gilliland writes, “the sense of ownership shared among more parties than just those who create information repositories” (p. 5). There are also various categories and characteristics of metadata. Overall I’d say that metadata is much more complex than I had thought.

Databases:


This article was like reading a foreign language! Basically, a database “consists of an organized collection of data for one or more uses, typically in the digital form”. There are a wide range of structures and types of databases, and also methods of organization. Security is also an important component, who can access and who cannot. From this article I’ve learned it takes quite a bit of knowledge to create, manage and run databases. There are many different aspects within databases to ensure that database users have the correct access to the database and to the materials within the database.


Dublin Core Data Model:


Personally, the most important part of this article is that the DCDI has attempted to establish standards that go across the disciplines, but also recognized that each group “may choose richer semantic definitions” than the DCDI. With this, they also tried to create a relation between the Dublin definition and a richer definition.

5 comments:

  1. Hey Caitlin,

    I understand that user-created metadata will help the individuals who create it, but a concern that I have is whether it will be helpful for other users trying to research the same information. I am just concerned that user-created metadata will confuse information retrieval even more than it already does. Maybe I am wrong, but it is a thought that continues to cross my mind

    ReplyDelete
  2. I definitely agree with you. I guess I was thinking that my own metadata was useful, but not necessarily useful to others. Something I would tag as "home" might be more meaningful for others tagged as "Pittsburgh".

    ReplyDelete
  3. I also think there is an opportunity for sabotage with user-created metadata- there has to at least be checks to make sure that tags aren't completely inappropriate, not just meaningful to some.

    ReplyDelete
  4. Caitlin, I liked your reference to Weinberger's book. I never knew about metadata before reading his book, but along with that and this article I feel like I have the basic idea now. I feel like creating metadata is easy, but creating really useful metadata must be hard. With Flickr for instance, if you label a photo "NYC, Statue of Liberty, Ellis Island," how many other photos have those same tags? I feel like your photo would get lost in the sea of everyone else's. So creating metadata which can uniquely identify an item would be hard, I think.
    -Christy

    ReplyDelete
  5. Maybe personal tags would be better if they were only given a private setting...? This way, I can organize what is meaningful to me, while not misrepresenting something for another person.

    Amy, this could also prevent the sabotaging you brought up as well.

    Just a thought.

    ReplyDelete