System design

Question 1

contemporary approaches

Answer 1

the movement of human and computer interaction away from basic interfaces (keyboards and mouses) towards more intuitive methods (Eg voice input, touch screen)

Question 2

voice input pros

Answer 2

allows people to use technology handsfree - more disability friendly + safer when driving

Question 3

touch screen pros

Answer 3

easy to use (intuitive)

Question 4

touch screen cons

Answer 4

can’t be used with wet hands
can have orientation problems

Question 5

force feedback pros

Answer 5

used in video games to make experience more immersive
could be used to identify danger (subtle vibrations)

Question 6

force feedback con

Answer 6

can be irritating

Question 7

voice input cons

Answer 7

cannot understand some accents
cannot understand natural language so instructions must be worded specifically
background noise can make voices hard to distinguish

Question 8

virtual reality pros

Answer 8

can be used to simulate training without danger (eg pilots)

Question 9

virtual reality cons

Answer 9

cannot accurately simulate real world

Question 10

what does augmented reality do?

Answer 10

takes real world and lays digital information over it. eg used to show pipe work within buildings based on plans

Question 11

design validation

Answer 11

a design prototype is shown to the customer in order to give them an idea of the end result and get feedback on changes - done before implementation

Question 12

system design evaluation

Answer 12

where the development company and the customer decide is a project has been successful

Question 13

key aspects of evaluation

Answer 13

ensuring requirements are met
ensuring system responds in an acceptable time frame
review if the product was developed on cost and on time
assess how useable the system is by the end user