Understanding Constraints and GOMS

Which of the following is NOT one of Norman’s four constraints?

• Logical

• Cultural

• Financial

• Semantic

Physical constraints in design primarily work by:

• Making some actions impossible

• Forcing users to memorize steps

• Providing users with unlimited choices

• Hiding unnecessary interface elements

Logical constraints help users by:

• Restricting choices based on reasoning

• Limiting access to certain features

• Requiring specific hardware to operate

• Encouraging trial and error learning

A common example of a cultural constraint is:

• A light switch flipping down to turn off

• A machine that requires biometric input

• A car only moving when the seatbelt is fastened

• A safety valve that releases pressure when turned

What makes semantic constraints different from logical constraints?

• They are based on meaning rather than structure

• They depend on regional customs

• They restrict physical actions

• They apply only to digital interfaces

A screwdriver only fitting into a screw of the correct type is an example of:

• Physical constraint

• Logical constraint

• Semantic constraint

• Cultural constraint

If a mobile app prevents users from submitting a form without filling all required fields, it is an example of:

• Logical constraint

• Semantic constraint

• Cultural constraint

• Physical constraint

The 'Play' button on media devices being a triangle pointing to the right is an example of:

• Cultural constraint

• Semantic constraint

• Physical constraint

• Logical constraint

A door that can only be pushed from one side due to a lack of a handle is an example of:

• Logical constraint

• Physical constraint

• Semantic constraint

• Cultural constraint

Which constraint is most influenced by user expectations and understanding of an object’s purpose?

• Semantic

• Logical

• Cultural

• Physical