What is the definition of Information Technology ?

What is the definition of Information Technology ?

We describe a model of the requirements determination process based on four concurrent subprocesses which we term scoping, modelling, requirements and options. The main features of each of these subprocesses are described and we propose that the concept of responsibility is a boundary object which links them all. We also argue that analysing an organisation in terms of responsibilities leads to requirements definition in a more natural manner than basing the organisational analysis on activities.