As IT professionals know, accessing mainframe applications for integration with other systems can be a slow, difficult job. That’s because mainframe applications rarely provide a clear separation between logic and data.
The traditional process for extracting data from screen-based mainframe applications is commonly known as screen scraping. Over the years, screen scraping has proved useful for simple task automation and limited application rejuvenation. However, early methods were quickly pushed beyond their limits, earning screen scraping a reputation for being slow, unreliable, and difficult to maintain.
This paper examines the history and limits of traditional screen scraping and introduces programmatic integration modeling with Verastream Host Integrator. For organizations planning to reuse legacy mainframe logic and data in web, portal, CRM, mobile, call-center, web self-service, or other new business initiatives, this paper is especially relevant. Verastream Host Integrator makes it possible to develop new, fully integrated applications -- very quickly -- while allowing the mainframe interfaces to be changed at any time without affecting the new application.
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