0000000000213298
AUTHOR
Heikki Saastamoinen
On handling exceptions
The current literature of information systems has dealt extensively with all kinds of exceptions. There are several studies defining the concept of exception and even providing classifications. However, no studies provide a method for verifying the rules in order to handle exceptions and to achieve the goals set by an organization's rules. In this paper, a model employing a set of unique input/output (UIO) sequences is presented for verifying such rules. The model originally presented for Finite State Machines (FSM) has been modified to include concepts of exception handling and will be used to form a tool usable for verifying exception handling rules in OISs.
Case study on exceptions
Discusses exceptions in office work and the link between rules and exceptions in office information systems. After describing the nature of exceptions, examines their effect on rules. Provides a case study of a factory purchasing process, including unmatched invoices, costs, classification and strategic changes.