By Haim Brezis

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The trend toward mass customisation and personalised production (Acaccia et al. 1999a) leads to a fundamental revision of material flows and factory layouts and organisation. Future factories have to be able to adjust themselves very rapidly to the customer’s requirements (Qin et al. 2008). This requires short response time and a very high flexibility in structures and processes. New automation concepts are needed. 2 Garment Manufacturing Simulation 21 integrated. These conditions require a responsive new manufacturing approach that enables: • the launch of new product models to be undertaken very quickly and rapid adjustment of the manufacturing system capacity to market demands; • rapid integration of new functions and process technologies into existing systems; and • easy adaptation to variable quantities and qualities of products for niche markets.

They are able to re-configure positioning the picking modules in a way suitable for the actual item/task. The re-configuration can be done on-line in real time by the actuation of the interested degrees of freedom. The synthesis of the handling mechanism has to comply with the functional criteria derived from the task specifications and to the general manufacturing paradigms of low life cycle cost and fast working cycle (Cavallo et al. 2001). From this point of view different branched articulated chains have to be compared and the simplicity of the architecture providing for high functional reliability is counterweighted by the absence of singularities, smoothed fast moving and handling robustness.

Simulation provides visibility on the governing rules. The embedded knowledge coding expands on several layers, Fig. 5, with oriented scopes, namely: • the facility description infers the causal relations (structural models) and judgmental frames (behavioural modes); • the functional modelling leads to generation of the algorithmic and the heuristic blocks for the virtual-reality experimentations; • the testing and evaluation is performed on actual production programmes by varying the governing logics on the strategic, tactical and operational horizons.

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