Question

(a)Distinguish between design principles, guidelines, and standards, using examples of each to illustrate. (b) Why is context important in selecting and applying guidelines and principles for interface design? Illustrate your answer with example

Answer 1

The difference between these is that standards are high in authority and limited in application, whereas design guidelines are low in authority and are more general in application. The best user interface guidelines are high level and contain widely applicable design principles.

Answer 2

Answer:

=> In triangles PQL and RSM

RS=PQ ( opposite sides of a parallelogram)

angle PQL= angle RSM ( alternate int. angles) angle PLQ=RMS=90 degree

therefore triangle PQL is congruent to triangle RSM ( by AAS)