In this article we focus on evolving information systems. First a delimitation of the concept of evolution is provided, resulting in a first attempt to a general theory for such evolutions. The theory makes a distinction between the underlying information structure at the conceptual level, its evolution on the one hand, and the description and semantics of operations on the information structure and its population on the other hand. Main issues within this theory are object typing, type relatedness and identification of objects. In terms of these concepts, we propose some axioms on the well-formedness of evolution. In this general theory, the underlying data model is a parameter, making the theory applicable for a wide range of modelling techniques, including object-role modelling and object oriented techniques.

翻译：在本条中,我们侧重于不断演变的信息系统。首先,对演变的概念进行了界定,从而首次尝试了这种演变的一般理论。理论区分了概念层面的基本信息结构、其演变过程以及信息结构及其人口操作的描述和语义。这一理论的主要问题是物体打字、类型关联和物体识别。关于这些概念,我们提出了一些关于演变的完善性学说。在这个一般性理论中,基础数据模型是一个参数,使该理论适用于广泛的建模技术,包括物体-功能建模和以物体为导向的技术。