Saturday, September 11, 2010

Week 3

Readings

LESK
I originally worked as a graphic designer, so the section on the history of computer typesetting was of particular interest. The text chapter really helped me stop thinking analog and start thinking digital. Seeing how a computer encodes, reads, retrieves…. These are tasks I’ve taken for granted, without understanding how a computer accomplishes them. The bit about OCR errors, with examples and an explanation of systems that are resistant to them was helpful.
The Image chapter is a good counterpoint. Scanning and display technology is explored in detail. The we go to a discussion of costs – digital versus print. This part is a repeat of what has been discussed in many classes so far.
Material feels slightly outdated.

ARMS
This reading is much more modern. While the LESK was interesting for its historical discussions, I find this one more helpful for this class. Much more clear. The in depth description of PDF documents was very interesting. The HTML and XML was a repeat from a prior class.


Encyclopedia of Library and Information Sciences
There is a lot of technical data in this one. The first page did a good job of describing a DOIs purpose and process. Useful quote:
“DOI is an acronym for Digital Object Identifier. The DOI system provides for unique identification, persistence, resolution, metadata, and semantic interoperability of content entities (“objects”). Information about an object can
change over time, including where to find it, but its DOI name will not change.”

Muddiest Point
No mention of Assignment 1 during class! I had noted all due dates from the syllabus in my calendar, but I almost missed this!

Saturday, September 4, 2010

Week 2


Readings

A Framework for Building Open Digital Libraries
There is no set standard for building a digital library. Different needs lead to very different systems. This is a creative period we have seen with other technologies. The internet is a good example, where the browser wars were a period of competitive development. It wasn’t until a common standard was developed that we began to see the true potential of the internet. I believe that digital libraries will see a similar pattern, and only once a common method is agreed upon will we see what they are truly capable of.

An Architecture for Information in Digital Libraries
An important point raised is that all items should be tagged as individual objects. An article with a picture should be two tagged items: the text and the picture. This way either item can be accessed independently as well as together.

Interoperability for Digital Objects and Repositories
Interoperability is the next step for digital libraries. This study has found that digital libraries have to be only mostly similar to be acceptably interoperable. By following similar standards, using the same open-source software etc, it is possible to create systems that users can operate, moving back and forth, without undue trouble.

Muddiest Point:
In our brief discussion of the group project, we were told that we will be creating a digital library to solve a problem. What do you mean by problem?