1) Database. http://en.wikipedia.org/wiki/Database
There was so much information contained in this first reading, I hardly know where to start.
But now I know that, "A Computer Database is a structured collection of records or data that is stored in a computer system."
When they were talking about the earlier data being punch cards and magnetic tape, I remember having punch cards walking around the high school cafeteria to get registered for my classes.
Then in the 90's there was much progress made with the help of Open Source, which I took to be like Open Access we've already talked about, and My SQL which could handle more complex databases.
With the Hierarchal, Network and Relational models, I thought I was in a soap opera with all the parents, and marriages, and children and relationships going on between them all.
The ACID rules actually made sense to me, which was a relief.
2) Anne J. Gilliland. Introduction to Metadata, pathways to Digital Information: 1: Setting the Stage
http://www.getty.edu/research/conducting_research/standards/intrometadata/setting.html
Data about data. Or, "Perhaps a more useful "big picture" way of thinking about metadata is as "the sum total of what one can say about any information object1 at any level of aggregation."
I have to admit to being curious about the virtual museums, and digitized libraries she was writing about. With all this Metadata and the accessibility to virtual collections, we should be able to stay in our homes and go to our 'holographic' room and visit anyplace, or any collection we want.
3) Eric J. Miller. An Overview of the Dublin Core Data Model
http://dublincore.org/1999/06/06-overview/
I have to admit that this whole dublin core was like reading another language. I totally did not get it. But under Compound Values he talks about the "weather". "These characteristics are independent of (weather) this person is the 'creator', 'publisher' or 'subject' associated with some other resource.
So in conclusion, the DCMI is like a large card catalog. We can be listed under many different headings, subjects, and titles and still all be connected and found by those looking for us.
Muddiest Point:
What is the difference between Embedded Operating systems, and LINUX, Windows, and
UNIX Operating systems?? Aren't they used for the same thing?
Responses to Week 4 readings
I responded to Author: Tamoul Quakhaan's question today about no scores being recorded. Also responded to her blog at:http://tee-quakhaan.blogspot.com/; http://melhohman.blogspot.com/; and http://emc2-technologychat.blogspot.com
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3 comments:
Hi Joan,
I like the way that you compared the DCMI to a large card catalog. It made more sense to me that way. This is one article that I had a difficult time with also. Thanks for making it somewhat clearer for me.
I liked the thought of visiting a museum virtually. To be able to teach children--especially if you are unable to visit large museums or have one close by--would be such a great learning tool. I have taken mine to many museums only to have them get tired of waking, looking and "learning" so much that they get tired.
Hi Joan,
To address your muddy point for week 4:
1. Embedded simply means that programs that add functionality are bundled into the software package for the database.
2. Polymorphism is a feature of the programming code that sets values for the type of data. (Wikipedia)
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