Digital library information systems generate large amounts of complex, numeric content. A new category of digital libraries with supporting services for such content is important to advancing library research. Intelligent services likewise are required to automate scientific workflows. Simulation environments are notably well suited for automation with digital libraries. This paper shows a new method to build intelligent information systems framework generates simulation supporting digital library instances. This framework contains processes for producing workflows of layers and services, formal definitions of content and services, a software toolkit, and a set of service implementations. Coordinating such digital library examples within a library practice infrastructure leads to more intelligent services and to the automation of numerous routine tasks. The intelligent information systems are is developed at library of Hohai University in China.