Technische Softwaredokumentation unter ?konomischen Gesichtspunkten – Ein formal-deduktiver Ansatz

Only a very low priority seems to be given to software documentation. For example, about 80% of the software systems in production worldwide are badly documented. In contrast empirical studies confirm that an adequate technical documentation reduces the error rate of subsequent changes during software maintenance. This leads to the question about the optimal scale of investment in technical documentation in any software project. In research, this decision problem has been largely neglected. Since underlying cause-effect relationships may be empirically hard to detect, this paper proposes a new deductive approach, which compares the present value of payments for the documentation and bug fixing. The basis of this model is the phenomenon of error propagation from one component to adjacent components through its dependencies. As a result the following hypothesis can be inferred: It is always beneficial to document too much rather than comparatively too little even for an arbitrarily low quality of documentation and for any required rate of interest. This hypothesis shows robustness even against some changes in assumptions.     

The effects of state-dependent human behavior on the design of a serial line

Most research on line design assumes that human operators perform independently from the status of the line. Recent empirical evidence is contradictory. Humans are likely to change their working speed if they might otherwise cause idle time (Schultz et al., Manage Sci 44(12):1595–1607, 1998). This peculiarity of worker behavior is observed in a variety of settings but little is still known about optimal line design that accounts for this more realistic modeling of worker behavior. Therefore, we analyze work allocation in a serial line with limited buffer capacity and adaptive human behavior. An extensive simulation study reveals that optimal work allocation in state-dependent models is different from classical state-independent models. A bowl-shaped work allocation might be suboptimal and design guidelines are more complicated. Depending on the extent of human reactions, a bowl-shaped, balanced, or reversed-bowl work allocation can be preferable.     

Open Government: Theoretische Bezüge und konzeptionelle Grundlagen einer neuen Entwicklung in Staat und ?ffentlichen Verwaltungen

New models of innovation have suggested that the innovation process of product and service development is becoming more open, emphasizing the importance of external knowledge and systematically involving external actors and sources in innovation endeavours. The growing success of open innovation practices in many firms raises the question whether these principles can be transferred for reinventing public sector organisations. Beyond technocratic eGovernment and digitalization effort, but with support of web 2.0 technology, we present first examples of how external collaboration and innovation with citizens for public administrations can offer new ways of citizen integration, enhancing public value creation and the political decision making process. In the following, theoretical references and conceptual foundations of this development are identified. By intensive use of internet technologies the aim of Open Government is to achieve more transparency, more participation and a closer collaboration with the various stakeholders in the public sector.     

Blended Business Coaching

The article presents an approach of Blended Coaching, which was evaluated in an empirical study in the non-profit-sector and emerged as a concept for the profit sector. Blended Business Coaching helps to transfer training contents of advanced vocational trainings into professional daily life. Using special methods, this transfer coaching utilizes the advantages of both face-to-face communication and internet based communication for the continuing education and coaching of the participants. This article shows the results of the empirical study and the approach itself.