There are few professions which require as much continuous updating as that of the IT executive. Not only does the hardware and software scene change relentlessly, but also ideas about the actual management of the IT function are being continuously modified, updated and changed. Thus keeping abreast of what is going on is really a major task. The Butterworth-Heinemann – Computer Weekly Professional Series has been created to assist IT executives keep up to date with the management ideas and issues of which they need to be aware.