What makes something simple or complex Its not the number of dials or controls or how many features it has It is whether the person using the device has a good conceptual model of how it operates.

Advertising Disclosure: Please note that many links to retailers are affiliate links, which yields a commission for us. allauthor.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon sites.