This thesis describes the development and evaluation of a theoretical framework to account for the
dynamic aspects of behaviour at the Human-Computer Interface (HCIF). The purpose behind this
work is to allow for the consideration of dynamic Human-Computer Interaction (HCI) in the design
of interactive computer systems, and to facilitate the generation of design tools for this purpose.
The work describes an example of a design tool which demonstrates how designers of interactive
computer systems may account for some aspects of the dynamics of behaviour, involved with the
use of computers, in the design of new interactive systems. The thesis offers empirical and literary
evidence to support the validity of the dynamic factors governing the interaction of humans with
A Doctoral Thesis. Submitted in partial fulfillment of the requirements for the award of Doctor of Philosophy of Loughborough University.