PERITUS

At least one system is available which is claimed to be applicable at the innovation stage or design. A brief description of this system is given below, as an instance.

PERITUS is a knowledge-based system, comprising three main stages.

• A director stage which directs the non-specialists to data and knowledge modules. The structure or this is system shown in Figure 5.
• A presort stage which uses ranking lists to produce a short-list or candidates from the materials indicated by the director stage.
• An evaluation and optimisation stage which can either display the short-list together with deviations from ideality or, where the required modules exist, uses failure modes to optimize component dimensions and properties, presumably including overall cost. The system is modular and additional modules may be added as required or when available.

Figure 5 : The Structure and Features of the Director Stage of the PERITUS Knowledge-based System for the Selection of Engineering Materials