What are the essential qualities of electronic payment system?

The important properties of electronic payment system are as follows :
(i) Acceptability : For electronic payment system to be work, this should be widely accepted by the customers as well as by the merchants.
(ii) Ease of integration: The software that accomodates the user and website, must be effective and well integrated.
(iii) Customer Base : There must be enough users and enough traffic to justify investing in the electronic payment mechanism.
(iv) Ease of Use and Ease of Access : Users like a payment system which is easily accessible and not comlex to use.