Wednesday, September 10, 2008

An Overview of the Dublin Core Data Model

DCES intended for cross-discipline resource discovery.
Issue: cannot be that detailed for individual needs, so attempting to create a modular/extensible metadata architecture to handle these singular/specific needs.
DCMI focuses on creating DCES based on these requirements:
Internalization
Modularization/Extensability
Element Identity
Semantic Refinement
ID encoding schemes
specification of controlled vocabularies
ID of structured compound values

At first, I was completely lost after reading this article! But it's starting to make sense to me that there has to be this sort of meta-framework (this is probably not even a word!) to help with how we access resources, or information. The DCMI idea seems to encompass most of what is necessary to build an effective metadata architecture, but again... I am rather new at this sort of thing. Does anyone have any "expertish" opinions as to whether or not this model is effective?

Monday, September 8, 2008

Introduction to Metadata: Pathways to Digital Information

Metadata: data about data.
--Becoming increasingly important for a variety of professional communities.
Information objects have 3 features:
-content
-context
-structure

Structure is becoming increasingly important as cpus grow in power/sophistication
--"metadata" consists of complex constructs to create and maintain (which can get costly), so why is it important?
--makes information more easily accessible
--helps maintain the context
--digitally, information can be expanded with metadata
--multi-versioning: can create multiple and/or variant versions of information objects
--legal issues- easier to track rights, etc
--preservation--metadata helps to preserve information objects so that they can be utilized as the digital world changes
--system improvement: metadata helps to track performance so that cpus can become more efficient both technologically and economically.
the BEST metadata = the BEST information management

"In this sense, metadata provides us with the Rosetta Stone that will make it possible to decode information objects and their transformation into knowledge in the cultural heritage information systems of the twenty-first century. "

I never realized that metadata existed. I knew that information management was vital in protecting and improving information accessibility and performance for the future, but I never realized there was this sort of superstructure in charge of maintaining the data and its context. I do think that metadata (now that I know it exists) will make a big difference in how we provide digital information objects to our patrons.

Wikipedia's Database Article

This article covers the basics of databases.
database: structured collection of records or data that is stored in a computer system. Databases are created/run through software.
The article also covers several types of database models, including:
relational model
hierarchical model
network model.

I felt as though this article was very informative--although I've utilized databases, I've never really considered how they are created or maintained.

Friday, September 5, 2008

Update on the Windows Road Map

This article covered an email sent by Bill Veghte concerning the Windows Vista release.
He wanted to let customers know that XP will be supported until 2014, that it will still be available (through businesses and downgrade options), and that Vista has introduced many great new changes. He also mentioned that Vista is offering updates that allow games to run effectively. Veghte also mentioned the new version of Vista, Windows 7, which is currently in progress.

An interesting formula commented on at the end of the page was
is cost > value, or is value > cost? The commenter stated that for the most part, the cost > value will keep people from upgrading to Vista. I definitely agree with this--my experiences with Vista have been, for the most part, nothing more than mediocre. XP has been much better suited to my needs and takes up a lot less space. I do have a new pc right now running on Vista, however, and it seems to be doing pretty well, so we'll see...

Wikipedia's Mac OS X article

The article was a sort of bare bones version of the one Singh presented, but what was most useful about it was the timeline. The visual timeline and then the list of various release dates gave me the visual needed to understand the changes Mac OS X has undergone over the past 10 years.

What Is Mac OS X?

I must admit, I was definitely a "Mac sucks, except for creative software" person, just as the author mentioned at the outset. The way the author describes Mac OS X--everything from booting it to the layers upon layers, all the way to the top software layers--made it much easier to understand, especially for someone who has never been exposed to extensive programming.
The step by step process of booting Mac OS X was particularly helpful. Going through the process, from turning the machine on and noting where the user becomes involved in the process, has helped me visualize the way the process works.

Other points:
Mac OS X boots up with open firmware installed in ROM
Mac OS X supports MS DOS
excellent at supporting Firewire devices
iphoto/itunes
Available software:
open office
all kinds of graphics/publishing software
im programs
email programs
media players
info management programs
all sorts of web browsers
--author notes that he's heard that Macs are worse than pcs for gaming
Why Mac OS X?
Windows can make you feel claustraphobic/limited
Linux--excellent system but may have TOO MANY options for some users
similar to *nix programs--you get the same feel but it's easier to use

Singh didn't completely win me over to the side of the Mac OS X, but that wasn't his goal, anyway. I think he was just trying to open our eyes to the various operating options computer users have, and to really look until we see what will work best for our needs.