Left Field

This will take some digesting to grok...

"If the Java Content Repository (JCR) API expert group's vision bears out, in five or ten years' time we will all program to repositories, not databases, according to David Nuescheler, CTO of Day Software [4], and JSR 170 spec lead. Repositories are an outgrowth of many years of data management research, and are best understood as fancy object stores especially suited to today's applications."

John Dougan comments...

My goodness, that data model reminds me of RDF. Is there a database/datamodel equivalent to Greenspun's 10th Law?

Interesting comparison to think about. For the sake of argument more than having made any real deep theory, I have previously wondered aloud whether there are a small number of common data persistence patterns.

AJAX lessons

Philippe Bossut's notes from the OSCON 2005 tutorial on Learning AJAX...

Most interesting stuff I learnt
Size of the data you can send and cache in a typical XMLHTTPRequest: 4K (small!). Best data type to return: JavaScript instead of XML.

(Alex Russell's PDF)