Abstract: A lightweight software bus is devised in the article. It attempts to introduce software bus notion into customization and integration of standalone system. Software bus technology is proposed to resolve construction of distributed heterogeneous environment. It is applied broadly in the distributed system. The lightweight software bus reforms structure of traditional software bus by applies dualbus framework and discards unneeded burdensome distributed elements. Therefore, it is qualified as effective software architecture in standalone environment. By means of giving a demonstrated implementation of lightweight software bus architecturebased bank service simulative application, it testifies lightweight software bus effectual as a truss of standalone application’s establishment.

Key words: lightweight, software bus, distributed system, dualbus framework, software architecture