Architectures for integrating legacy information systems with modern bar code technology
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- 作者：J. David Porter ; Richard E. Billo ; Robert Rucker
- 关键词：Bar Codes ; Legacy Systems ; Material Tracking ; Systems Integration ; Web Services ; Wireless Communications ; XML
- 刊名：Journal of Manufacturing Systems
- 出版年：2004
- 出版时间：2004
- 年：2004
- 卷：23
- 期：3
- 页码：256-265
- 全文大小：2042 K
文摘
This work reviews alternative solutions for retrofitting existing legacy manufacturing information systems with modern bar code tracking hardware and software. Technologies are divided into one-tier architecturs, which include the use of screen scrapers and terminal emulation software; two-tier architectures, which include the use of standard and custom application program interfaces (API); and three-tier architectures, which discuss the application of standards such as CORBA, DCOM, XML messaging, and application protocols for seamless integration with legacy systems. A case study is provided that describes the use of a two-tier API product for implementing a wireless bar code data capture system with a proprietary warehouse management system. Concluding remarks discuss the importance of emerging three-tier architectures and wireless bar code technologies for business-to-business e-commerce applications. The approaches presented here are consonant with the modern view of considering legacy systems as also providing Web services via multiple channels serving multiple categories of clients.