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Hewlett-Packard is improving the performance of new inkjet handling systems by using WITNESS to optimise tooling before it’s built. HP recently developed a new flexible assembly concept in which standard components can be quickly reconfigured to handle new products and volume changes. In the concept’s early phases, HP encountered problems specifying modules because the system complexity made it impossible to evaluate its performance using conventional linear calculations. Engineers turned to WITNESS to determine the performance required for each module to meet requirements. The ability to evaluate various scenarios before tooling was ordered made it possible to build a better system that could be more easily adapted to future demands.