ajax

Maintaining data concurrency in an "Ajax" environment

Hello,
I'm working on a thin client application which will be used by
multiple users concurrently and I'm having problems wrapping my head
around how we'll address overwriting of data that's being edited by
another user. Since this application will be using a lot of Ajax-type
interactions it will allow users to change individual attributes of
objects. In this case, the objects are financial data, so making sure
the user knows what the most up-to-date value (OR correct value --
these are two distinct options) is is of very high importance.

Apple Store update (now w/AJAX)

So, they've updated the Apple Store. And in addition to new
PowerBooks and Dual dual-core G5s, there's a bit of AJAX going on.

I was shopping for a new PowerBook (got a 1.25Ghz I need to get rid
of if anyone's interested) and as I upgraded the HD to 120G, I
noticed something going on in the top right corner - there was a JS
fade technique to call my attention to the updated list of features
(new HD size) and updated total of my shopping cart.

I thought it might be a fluke, or maybe the page just reloaded really
fast.

RIAs, and Ajax, make the WSJ

<http://online.wsj.com/article_email/0,,SB111075227698078072-
IFjgYNglah4oZymZ4GHcaiGm4,00.html>

--peter