This Master’s Thesis is performed at Electrolux Dishwasher plant in Adelaide, Australia from September 2004 until January 2005. The Ergolift is a new, ergonomic kind of dishwasher, on which the lower basket can be raised to the same level as the upper basket. The latest prototype is designed and built at the Electrolux dishwasher plant in Adelaide, Australia. The aim for this project has been to develop and improve this product focusing on user aspects. The first part of the project concerns basket interlocking, mainly design of automatic safety interlocks that prevent the baskets from colliding and protects the users from clamping their hands. Various ways of launching the basket in and out of the dishwasher have also been considered. The second part of the project is focused on user preferences and two usability tests have been conducted. The test objectives for the first test were to find out if the user prefers continuos or intermittent drive for the lower basket and what placement they prefer for the control button. One push on the control button makes the basket travel the full distance in continuous mode, whereas in intermittent mode the basket will stop moving as soon as the control button is released. The objective for the second usability test was to set speed limits for the lower basket. At what speed will the users get bored and loose focus on what they are doing and at what speed will they feel uneasy about using the system?