Ex: Directions To Northgate Cinema
When we give directions, we are giving a process for reaching a destination
- To go to the Northgate Cinema, exit I-5 at Northgate, go straight through the light, take a left once in the mall parking lot and go one block.
Weaknesses of these directions …
- Finiteness: It is finite, at least under some circumstances
Definiteness: Assumes one is traveling on I-5, but doesn’t say which direction; or equivalently what is Northgate’s exit number; assumes a particular exit, though there are two
Input: Should have the starting location as input
Output: Ill-specified -- directions lead to back of cinema
Effectiveness: Is vague about navigating in mall parking lot