Model integration using SML

Structured modeling language (SML) is a modeling language for the structured modeling framework, which represents the semantics as well as mathematical structure of a model. This paper extends some structured modeling concepts and defines SML schema operations for formalizing model integration. Executing any of the operations could possibly disrupt the integrity of an SML model schema. Some major propositions and several examples in the paper settle practically many of the open questions for the operations studied. This research not only contributes an operational approach to perform model integration in SML, but also allows us to understand how different kinds of schema edits can disrupt the formal correctness of SML, and what can be done about it. It helps lay the foundation for the future development of an incremental static semantic analyzer and smart schema-directed editor.