Give four benefits of direct manipulation. Also list four problems of direct manipulation.

What will be an ideal response?

Benefits:
a) Control/display compatibility
b) Less syntax reduces error rates
c) Errors are more preventable
d) Faster learning and higher retention
e) Encourages exploration

Problems:
a) Spatial or visual representations can be too spread out
b) High-level flowcharts and database-schema can become confusing
c) Designs may force valuable information off of the screen
d) Users must learn the graphical representations
e) The visual representation may be misleading
f) Typing commands with the keyboard may be faster