Patterns for Modelling Time and Consistency in Business Information Systems

Maintaining semantic consistency of data is a significant problem in distributed information systems, particularly those on which a business may depend. Our current work aims to use Event-B and the Rodin tools to support the specification and design of such systems in a way that integrates well into existing development processes. This paper presents Event-B patterns that may be used to represent recovery from time-bounded inconsistency and illustrates their use in a model derived from industrial applications.