Abstract: Product model design is one of the critical factors to tackle fast changing market. Shared information/data (SID) model from telecommunication management forum(TMF) is good and comprehensive. But the complication of implementation and high cost makes it hard to be adopted in building operation support system(OSS) in China. With the actual situations of Chinese telecom operators in mind, this paper simplifies the SID model and presents a new product data model for communication service providers based on the in-depth study of SID model. This paper also describes the differences between SID model and new product data model from model complicity and model cohesion perspective. The new product data model has been successfully implemented into the telecom operation management support system(TOMSS) in China Netcom Henan Branch.