Thursday, October 25, 2007

A Mental Model for the Physical World

While I prefer to keep my "organizing" to the digital world, I was intrigued by this video. Discover Magazine sponsored a "string theory in 2 minutes or less" user generated video contest and this was the winning entry.

String theory could provide us with a new mental model of how the physical world fits together. By the way the "viewer's choice" was also very good.

Wednesday, October 17, 2007

Book Reviews and Microformats

As a chronic organizer of all things digital I have been intrigued with “microformats”. In a conversation with my youngest son—he was curious about applying star ratings to book reviews. It turns out that his teachers are using “wikispaces” to aid in the teaching process (way to go teachers!) and they want to be able to apply a star based rating system to their book reviews.

In my quest to answer his question I did run across some good resources:

hreview creator—this tool creates hreview code for you. The site provides a form to input the appropriate values and provides the code for copying and pasting into your web page.

Wetpaint and Socialtext are also good tools for creating “wikis” (alternative options for wikispaces).

Amazon now offers a media library where users can add books (and other media types) to their account. The student would be able to apply a star rating, add comments and “tags”. The beauty of this service is that a student can very easily search and order new books—when the book is ordered, it automatically pops up in the media library (it isn’t automatically shared with the outside world though unless a setting is changed to allow for that to happen).

Google books has also has a tool called “my library” that allows a user/student to keep a list of books. As with the Amazon tool you can add a review, rating and tags to each entry. The service from Google Books has an RSS feed feature—Amazon might, but I didn’t see it. The RSS feature could allow the teacher to subscribe to each students book list via an RSS news reader like Google Reader. This would allow the teacher to see new and changed entries in a particular students book list (very cool).

Interestingly enough, a website called “LibraryThing” beat both Amazon and Google to the punch with their service. My favorite item about this site—you can use a cue cat scanner to improve the book input process. A Max OSX based application called “Bookpedia” is also cue cat scanner friendly (I’m a registered user of this one).

Wednesday, October 10, 2007

SCORM Compliance

I’m addicted to “standards”. I can’t help myself! I suppose part of this comes from my unstoppable desire to create order out of disorder. Course descriptions, course content, syllabi, assignments—they’re all just a wild mess of relatively non re-usable objects.

SCORM is a standard for online course delivery that tries to combat this with re-usable objects called “Sharable Content Objects” (SCOs). These SCOs are made up of one or more “assets”. An asset, by definition is an "electronic representation of media, text, images, sound, web pages, assessment objects or other pieces of data" (see clippings below).

SCORM Version 1.2 Overview for Developers Annotated

  1. Sharable Content Object Reference Model (SCORM) allows learning content from any vendor to play in any SCORM conformant Learning Management System (LMS).
  2. SCORM was created in cooperation between government, academia and industry and it consolidates the work of AICC, IMS, ARIADNE and IEEE’s LTSC into one unified reference model.
  3. Basically there are 2 parts SCORM Version 1.2: the Run-Time Environment and the Content Aggregation Model.
  4. The Run-Time Environment specifies how content should behave once it has been launched by the LMS.
  5. The Content Aggregation Model specifies how you should package your content so that it can be imported into an LMS. This involves creating XML files that an LMS can read and learn everything it needs to know about your content.
  6. All communication between the content and the LMS is handled by this adapter, thus the content author does not need to worry about communicating with the server, he only needs to be able to find the API Adapter and make the appropriate JavaScript calls.
  7. This separation of client and server is essential to SCORM in that it ensures the portability of content by forcing it to run on a standard platform (the web browser).
  8. There is no SCORM conformant method for content to communicate with the LMS through other methods such as web services, or HTTP requests.
  9. Content Aggregation model is divided into three parts, the Content Model, the Meta-data and Content Packaging.
  10. The Content Model describes the content being delivered.
  11. The Content Model defines a powerful model for breaking content into arbitrarily sized units of reuse. These units are called Sharable Content Objects (SCOs) and Assets.
  12. An Asset is simply an "electronic representation of media, text, images, sound, web pages, assessment objects or other pieces of data".
  13. A SCO is a collection of one or more assets that represents a logical unit of learning.
  14. The defion of a SCO is left up to the content author to define under the guidance that a SCO should represent the smallest unit of learning that the LMS should track.
  15. To achieve reuse, a SCO should not be context sensitive, it should not reference other SCOs, and it should not link to other SCOs.
  16. The Meta-data specification provides a mechanism to describe the content using a pre-defined and common vocabulary. This vocabulary is broken into nine categories:
  17. The Content Packaging specification defines how the Content Model and Meta-data are implemented.
  18. From a technical perspective, the two most important things to take away are that all communication between content and an LMS is handled via JavaScript and that all content should include an XML file called imsmanifest.xml which describes its structure and other characteristics to the LMS.

Thursday, October 4, 2007

Organizing Visual Data

My LinkedIn connection, Jeff Stewart, from Trekk Cross Media alerted me to the information for this posting.

I can’t imagine a better example of “organizing data” than what is in this video. While we might naturally think of data as “text” based, this example shows what can happen when visual data is organized. This is a great example of the developing “semantic web”.

The Professor who uses visual information in the classroom (architects, visual arts, graphic design etc.) will want to keep an eye on this technology.

Tuesday, October 2, 2007

“Super Crunchers”—A Book Review

This book is all about organizing data to create information to support the quest for gaining knowledge.

I absolutely enjoyed this book and give it high marks for any of the following categories of people:

·         Customers—very enlightening

·         Entrepreneurs—interesting opportunities

·         Problem solvers—a slew of data available

·         Concerned Citizens interested in the authoring and implementation of effective public policy

·         High school math student who wonders “How is this class going to help me?”

·         Ethicists—“with great power comes great responsibility” (Peter Parker’s Uncle Ben)