Limitations in PDA based Food Ordering Systems
Even though the PDA based system provided a better option to conventional food ordering system they possess
some limitations:
A number of PDAs are to be prepared to serve the number of customers during peak hours. Thus increasing the
restaurant expenditures [2].
PDAs do not provide provision to order from workplace. Thus the customer has to be physically present in restaurant
to place order [6].
It lacks real time feedback between restaurant owner and customers [2].
Pose health problems as the PDAs are to be shared with public customers. If any customer is suffering from
infectious disease like flu, then the other customers using the same PDA are exposed to similar health hazards.
The user interface consist only textual information. UI has become unattractive and uninformative due to lack of
images [6