The digital transformation brings up various new tasks to manage new business application software and
integrate them into existing business processes and legacy systems, which are necessary to keep e.g. a
production system running. Today, all these tasks are on the one hand not clearly defined and on the other
hand, responsibility of these cross-disciplinary tasks is unclear in companies being mostly structured in a
function-oriented way. While quality management has developed to a firmly established function of process
excellence years ago, IT-application management is still to become an inevitable part of the digital
transformation. There are just a few authors trying to define and describe this part, the related tasks, and
necessary roles in an organization. In this paper, we show how the business needs of a company can influence
the ideal adaptation of the digitization solutions and thus become the success of the digital transformation.
We base the paper on a use case in manufacturing companies. We then describe how companies deal with
business application systems today. Based on the framework Aachen Digital Architecture Management we
describe how a company can holistically improve the management of business application systems.
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