When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
By David Benyon, Thomas Green, Diana Bental. David Benyon is Professor of Human-Computer Systems at Napier University. - 1.2 Principles of Design. - 1.3 Models in Design. - 1.5 Models of Dynamics.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.