Interdisciplinarity is required: from those in charge at universities, policy-makers and leading researchers globally. It is essential, however, that interdisciplinarity be founded on a unified scientific theory so it is not a mere catchword but filled with substance of its own. This paper presents a conceptual framework, which allows the need-based reconstruction of interdisciplinary content. This is done using an example: the creation of a language-critical organization theory as part of Computer Science (CS), which seems to have entered the global discussion of the topics “Web Science”, “Enterprise Computer Science” or "Services Science. Nowadays, because of “ubiquitous computing”, it is modeling in almost every scientific or business area and not programming, that is in the focus of a worldspanning System and Applied Computer Science.