The paper presents the results of a doctoral research related to Information Systems
evaluation in context. The authors propose changes in the context, the new level of contextual
analysis was added: the system context located between the internal and external context. The
system context reflects the fact that the case companies are business units and parts of the
corporations and IS evaluation is influenced by the corporation, Three levels of context
analysis can be used in case of IS evaluation in complex structures, such as corporations or
supply chain