Method and system for customising build-to-order products

A method of configuring a product, where the product is to be assembled from a plurality of components, each component being available in at least one variant, the method comprising the steps of

• presenting to a user, via a user interface, a first plurality of variants of a first one of said plurality of components;
• receiving from the user an indication of a first variant selected from the first plurality of variants;
• presenting to the user via the user interface a graphical representation of the first variant;
• characterised in that the method further comprises the steps of
• presenting to the user, via the user interface, a second plurality of variants of a second one of said plurality of components;
• receiving from the user an indication of a second variant selected from the second plurality of variants;
• presenting to the user, via the user interface, a graphical representation of the first selected variant of the first component in a predetermined relationship to the second selected variant of the second component.