usability
user a use product
simple and effecitvent
subject matter experts
users
usability expert
methonds
survery and invterivew
observations
methonds- what you did
results sections-feedback
anlsyis- jusity resutls
Karts
sinkholes
caves
conical hills
porsity -space
permeability-eas whihc water flows
fluvuak geomorphology -streams