关键词: 网格, 资源发现, Web服务, P2P技术, 泛洪算法

Abstract: To find numerous and complicated grid resources effectively is a very important factor affecting the grid’s performance.Along with the expansion of grid’s scale and application，ways of resource discovery become increasingly complicated.This paper combines Web service technology with grid environment and introduces the concept of P2P equivalence.And a new stratified model is put forward，which has two layer—the inside one and the outside one.This architecture in manufacturing grid is applied.Simulations show that through this innovation the problem of chock point in traditional model is readily solved，and so on.Also，it reduces the network traffic in distributed system greatly.This new model is provided to be valid，scalable and robust.

Key words: grid, resource discovery, Web Service（WS）, Peer-to-Peer（P2P）, flooding algorithm