求翻译：本文是以电器公司信息管理系统的研究设计和开发为背景，以现有成熟软件开发方法为指导，研究开发了一套以Visual Basic语言和SQL Server数据库相结合的三层结构的企业管理信息系统。是什么意思？

This article is based on the electrical company information management system design and development in the context of existing mature software development methodology, research and development of enterprise management information system of the three-tier structure combining a visual basic language

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This article is take the electric appliance company information management system management system research design and the development as a background, take the existing mature software method of exploitation as the instruction, the research has developed a set three structure business management i

This article is for the electric company information management system research and development background, guided by the existing mature software development methods, research and development and SQL Server database in Visual Basic language combination of three-layer structure of enterprise managem

With the rapid development of computer technology and popularization of computer application in enterprise management