Critical Design is a specific type of design activity that has emerged from within the field of product design. Based on the supposition that design is an ideological activity, it can either be critical or affirmative of the status quo and categorised as Critical Design or Affirmative Design. The intention of this study is to create Critical Design within the practice of graphic design. Critical Design was defined by identifying its key characteristics and then visualised into a diagram that maps the pathways, processes and consequences which distinguish Critical Design from Affirmative Design. The characteristics were used to generate criteria of Critical Design, which were then used to analyse case studies. The findings from this analysis suggested that both case study projects could be defined as Critical Design and served as a way of testing the appropriateness of the criteria. The practical component of this study used the characteristics of Critical Design to create a range of graphic design artefacts and then analysed them in relation to the criteria of Critical Design. The findings from this analysis determined the practical component as Critical [Graphic] Design and suggested that graphic design can be an appropriate medium for critique of its own role within society.

The diploma thesis includes design of smart child lighting that takes into account the effects of colour spectrum changes on the human sleep regime.

A great challenge for a future sustainable society is to create a new design culture protecting environmental value. A new product’s language is determinant not only for marketing success and public acceptance, but also for a new understanding of the conflict between aesthetics and ethics that haunts the development of this new design language. The designer’s approach to the new trends will certainly deal with the relationship between industry and society, form and function, package and architecture, and it is an opportunity to create new and coherent design.

This doctoral research project was directed towards the economical and cost-effective production of three-dimensional multi-layer textile preforms which provided the reinforcement for composite components with automotive and engineering applications.

This work describes the development of a technique for the evaluation of the performance of a product's physical user interface. The technique is intended to combine the best features cat conventional user group testing with those of computer based biomechanical modelling. A requirement for the new technique exists as social pressure demands that consumer products he optimised for users with a wide range of physical capabilities, while shortening product lifecycles leave less time for extensive user evaluation programmes. A demonstration system was developed, based upon the use of an electromagnetic tracking system to gather upper limb motion data and a two segment, rigid link biomechanical model. Experimental work was carried out to test the effectiveness of the system at following limb movements and average error in reconstruction of hand position from segment angle data was 62mm (Standard deviation 41 mm) The modelling system was applied to the assessment of two types of product: cutlery and drinking vessels and the effectiveness of various statistical techniques in allowing the rapid identification of important design parameters was assessed. The use of Taguchi's smaller-the-better signal to noise ratio was found to be effective for the measurement of the effect of product design on shoulder and elbow forces. Cutlery with enlarged handles designed to reduce grip strength requirements tended to increase forces at the shoulder. The method was also applied to an interface optimisation problem involving the design of a lever mechanism. Partial factorial design was used to minimise experimental cost during the assessment of multiple factors, but strong interactions were detected between interface parameters, reducing the value of the analysis. The overall height of the lever handle relative to the user's shoulder was found to be the most significant design factor, with an optimum operating situation existing where the lever was low enough to require almost full extension of the elbow during use. The work concludes that biomechanical analysis holds further promise for the optimisation of interface parameters, provided the high experimental cost involved with present techniques can be reduced.

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