What Is Scalability?

PHP has been both heralded and criticized on a number of topics. This is to be expected, considering the rate of growth of PHP's popularity. It has given people something to talk about. One topic that seems to come up a lot is scalability. ONJava.com has an interesting article entitled The PHP Scalability Myth: http://www.onjava.com/pub/a/onjava/2003/10/15/php_scalability.html Of particular interest to me is the variety of definitions for scalability that I have noticed, both in this article and elsewhere. I wrote a brief description of what scalability is to me in my blog (http://shiflett.org/). How do you define scalability? What factors do you consider when you declare whether a particular technology is scalable? Do you think PHP is scalable? Does Yahoo? Chris ===== My Blog http://shiflett.org/ HTTP Developer's Handbook http://httphandbook.org/ RAMP Training Courses http://www.nyphp.org/ramp