HOW CAN QUICKCHANGE HELP? At Quickchange Products Ltd, we've spent the past few years designing and developing a number of products to help you serve your disabled, elderly or infirm customers that much better. These are currently in use by many well known, high street institutions. If you purchase one of these off-the-shelf DDA solutions, you can show that your company is making reasonable adjustments to its business to embrace the Disability Discrimination Act.