外文资料翻译英文原文A platform for communicating construction material information between e-commerce systems[16]E-commerce systems are becoming increasingly important in the Hong Kong construction material procurement market. Currently ， however, many e-trading marketplaces have been developed, owned, and/or hosted by different companies. Each of the e-trading marketplaces forms a closed system with their unique customers and clients. The totality of these e-trading marketplaces appears to be islands in the sea, as they are isolated with no interoperation between them. Since material information in each e-trading marketplace is limited ， buyers usually cannot find all the required materials from one marketplace. This paper introduces a platform ， named ‘E-Union’, that enables interoperation between e-trading marketplaces. The ability of marketplaces to interoperate extends the idea of liquidity and network effect by joining more buyers with more suppliers，without sacrificing the ability of each marketplace to be highly specific to the supply-chain node or target buyer group it serves． This paper first discusses problems in a non-interoperable E-commerce marketplace environment. Then two approaches for enabling interoperation between marketplaces ，the mobile agent approach and the Web services approach ， are introduced ． The third part presents the concept, system architecture and functions of the E-Union platform．1 Problems in Non-Interoperable E-Trading Marketplace EnvironmentThe Web-based e-trading marketplace contains two major functions ： providing trading information and facilitating trading transactions. Users may log into the system as either buyers or sellers of construction materials. Sellers can upload their ...
