http://dl.gi.de/handle/20.500.12116/11848 2026-07-23T16:01:25Z 2026-07-23T16:01:25Z Jonen, Andreas Lingnau, Volker Müller, Jochen Müller, Paul http://dl.gi.de/handle/20.500.12116/12407 2018-03-26T09:09:43Z 2004-01-01T00:00:00Z

Balanced IT-Decision-Card Ein Instrument für das Investitionscontrolling von IT-Projekten Jonen, Andreas; Lingnau, Volker; Müller, Jochen; Müller, Paul Balanced IT Decision Card — An Instrument for Investment Controlling of IT Projects p]This paper introduces a Balanced IT Decision Card. It aims at overcoming the shortcomings of common decision making processes on large information technology (IT) projects.The investment decision should be based on an evaluation process that takes into account monetary and non-monetary measures. Given this infinite amount of data, decision makers need tools that present the important information in a simple and structured way. Therefore, this working paper makes use of the latest findings of cognition theory. Furthermore, the IT project must be integrated in the overall IT strategy, so that synergies with other IT projects can be realized. Following this argumentation, the Balanced Scorecard approach is adopted to control the investment process of IT projects.

2004-01-01T00:00:00Z Becker, Jörg Winkelmann, Axel http://dl.gi.de/handle/20.500.12116/12404 2018-03-26T09:09:43Z 2004-01-01T00:00:00Z

IV-Controlling Becker, Jörg; Winkelmann, Axel IT-controlling is necessary for an increase of transparency within the IT departments. This article examines current Internet resources on IT-controlling that are offered by controlling associations, research institutions, companies, portals, newspapers and discussion groups.

2004-01-01T00:00:00Z Lammers, Markus http://dl.gi.de/handle/20.500.12116/12401 2018-03-26T09:09:43Z 2004-01-01T00:00:00Z

Make, Buy or Share Lammers, Markus In this paper a sourcing decision framework is developed combining the resource based view, transaction cost economics and production economies. The combined theories are used to provide a sequential application of the main arguments of resource based view, transaction cost theory and production cost theory to decide on making, buying or sharing an activity. A further key contribution of this paper is the introduction of share as an alternative to make or buy. Share means the bundling of resources between competitors and reflects the importance of cooperation between competitors as a way of improving the efficiency of production. The developed framework regards IT as a portfolio of activities and can be used to evaluate which IT activities should be produced internally and whether cost savings expected from IT outsourcing may be realizable.

2004-01-01T00:00:00Z Zarnekow, Rüdiger Brenner, Walter Scheeg, Jochen http://dl.gi.de/handle/20.500.12116/12406 2018-03-26T09:09:43Z 2004-01-01T00:00:00Z

Untersuchung der Lebenszykluskosten von IT-Anwendungen Zarnekow, Rüdiger; Brenner, Walter; Scheeg, Jochen IT management focuses on planning and developing new IT solutions. The importance of production (operation, support, maintenance) and further development of existing solutions is often neglected, although these tasks are responsible for the majority of today’s IT costs. The paper introduces a life cycle model for IT application systems and presents the results of a survey of the life cycle costs of 30 IT application systems. Within the survey, the distribution of costs over the application life cycle was recorded and evaluated. The results show the central importance of recurring costs for production and further development. For a production time of 5 years these costs amounted to 79% of all life cycle costs, whereas only 21% of the costs were incurred during the planning and initial development stages.

2004-01-01T00:00:00Z