In this paper, a Prototype design of electronic coupons ecosystem using NFC (Near Field Communication) in smart phones with OMM (Object Memory Model) is presented. The goal of OMM is to support the life cycle of NFC-based Electronic Coupon ecosystem for profile and usage, from E-Coupon push service and to E-Coupon clearance, using smart phone based on NFC devices. We propose the E-Coupon with OMM based on NFC, and present software design of E-Coupon among server and users.