Chapter . Introduction

Whenever a new technology comes along, the whole technical community reaches to grasp the details as well as the implications. If this technology represents a “sea change” in the way that computers are programmed, the need to comprehend becomes a matter of technical survival.

Web services represents a sea change. There have been other drastic changes in the computing environment in the past few decades. Here are a few of them:

  • Stored programs replaced punch cards and paper tape.

  • Online systems largely replaced batch systems.

  • Graphical user interfaces replaced green screens.

  • Networked computers replaced standalone computing.

  • Internet-based systems replaced LAN-based systems.

In a year or two we will add the following:

  • Web services–based ...

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