Website design: Which data show that usability engineering s

 Usable systems can save money by helping to: increase productivity, increase customer satisfaction, increase sales and revenues, reduce development time and costs, reduce maintenance costs, decrease training and support costs. 

There is data to support these claims: 63 percent of all software projects overrun their budgetary estimates, with the top four reasons all related to unforeseen usability problems; 80 percent of maintenance is due to unmet or unforeseen user requirements, and only 20 percent is due to bugs or reliability problems; A telecommunications company took a user-centered approach to their new point-of-sale system and saved about $750,000 in training and internal support costs.

You can use usability testing to show that the benefits of usability engineering outweigh the costs. This method was first published by Clare-Marie Karat of IBM who used it to show a 100-fold return on investment for a particular software product. In that case, spending $60,000 on usability engineering throughout development resulted in savings of $6,000,000 in the first year alone.