Because demos show a product or service operating in its ideal environment with the ideal user flow. The person showcasing it knows exactly what the system can and cannot do, and how to make it look good in front of a crowd.
Real users are more complicated, and have specific demands that run into weird edge cases that the developers haven't thought of/tested properly. Like for an AI voice recognition system, can it deal with every accent under the sun? What about people with speech impediments or weird ways of pronouncing words? What about users who don't what to say or how to say it?
A demo only has to work in one specific way. A real product has to cover hundreds or thousands of edge cases its creators may not have even thought of.
Comments
Because demos show a product or service operating in its ideal environment with the ideal user flow. The person showcasing it knows exactly what the system can and cannot do, and how to make it look good in front of a crowd.
Real users are more complicated, and have specific demands that run into weird edge cases that the developers haven't thought of/tested properly. Like for an AI voice recognition system, can it deal with every accent under the sun? What about people with speech impediments or weird ways of pronouncing words? What about users who don't what to say or how to say it?
A demo only has to work in one specific way. A real product has to cover hundreds or thousands of edge cases its creators may not have even thought of.