CMSE323 HUMAN COMPUTER INTERACTION CHAPTER IV on LOW FIDELITY PROTOTYPING HUMAN FACTORS IN INTERFACE DESIGN DR. ADNAN ACAN

LOW FIDELITY PROTOTYPING

 COMPROMISES IN PROTOTYPING  All prototypes involve compromises  Compromises in low-fidelity prototypes:  device doesn't actually work  Compromises in high-fidelity prototypes:  slow response  sketchy icons  limited functionality available  Two common types of compromise  ‘horizontal’: provide a wide range of functions, but with little detail  ‘vertical’: provide a lot of detail for only a few functions

LOW FIDELITY PROTOTYPING

Low-fidelity prototypeHigh-fidelity prototype

LOW FIDELITY PROTOTYPING

PrototypeAdvantagesDisadvantages Low-fidelity prototype - low developmental cost - evaluate multiple design concepts - limited error checking - navigational and flow limitations High-fidelity prototype - fully interactive - look and feel of final product - clearly defines navigational scheme - more expensive to develop - time consuming to build - developers are reluctant to change something they have crafted for hours