University of Mannheim

About: University of Mannheim is a education organization based out in Mannheim, Germany. It is known for research contribution in the topics: Context (language use) & Politics. The organization has 4448 authors who have published 12918 publications receiving 446557 citations. The organization is also known as: Uni Mannheim & UMA.

Information systems outsourcing: a survey and analysis of the literature

Abstract: In the last fifteen years, academic research on information systems (IS) outsourcing has evolved rapidly. Indeed the field of outsourcing research has grown so fast that there has been scant opportunity for the research community to take a collective breath, and complete a global assessment of research activities to date. This paper seeks to address this need by exploring and synthesizing the academic literature on IS outsourcing. It offers a roadmap of the IS outsourcing literature, highlighting what has been done so far, how the work fits together under a common umbrella, and what the future directions might be.In order to adequately address the immense diversity of research on IS outsourcing and outsourcing in general, we develop a conceptual framework that helps us to categorize the literature. In particular, we look at the research objectives, methods used and theoretical foundations of the papers. In identifying the major research objectives, we view outsourcing as an organizational decision process and adapt Simon's stage model of decision making. This allows us to identify five major sourcing issues, from which at least one is covered by each academic article. These are the questions of why to outsource, what to outsource, which decision process to take, how to implement the sourcing decision, and what is the outcome of the sourcing decision. In analyzing the literature, we identify and structure the main explanatory factors and theoretical relationships within each of these sourcing stages. Based on our discussion of the research objectives, theoretical foundations and research approaches taken in the literature, we show how the various research streams hang together and we come up with a number of implications for research. Moreover, we identify a number of emerging sourcing issues. We believe that research on these "new" phenomena such as offshore outsourcing, application service providing and business process outsourcing would benefit from 'standing on the shoulders' of what has already been accomplished in the field of IS outsourcing.

A Multiple-Layer Model of Market-Oriented Organizational Culture: Measurement Issues and Performance Outcomes

Abstract: Previous research addressing market orientation from a cultural perspective typically has used behavioral measures of this construct. Drawing on literature in the fields of organizational theory and marketing, the authors develop a multilayer model of market-oriented organizational culture. They draw an explicit distinction among values that support market orientation, norms for market orientation, artifacts indicating high and low market orientation, and market-oriented behaviors. On the basis of qualitative research and a subsequent survey, the authors develop scales for measuring the different layers of market-oriented culture and analyze relationships among the different components of market-oriented culture. Findings indicate that artifacts play a crucial role in determining behavior within organizations. Results also indicate that a market-oriented culture influences financial performance indirectly through market performance and that this relationship is stronger in highly dynamic markets.

Lucas/Kanade meets Horn/Schunck: combining local and global optic flow methods

Abstract: Differential methods belong to the most widely used techniques for optic flow computation in image sequences. They can be classified into local methods such as the Lucas-Kanade technique or Bigun's structure tensor method, and into global methods such as the Horn/Schunck approach and its extensions. Often local methods are more robust under noise, while global techniques yield dense flow fields. The goal of this paper is to contribute to a better understanding and the design of novel differential methods in four ways: (i) We juxtapose the role of smoothing/regularisation processes that are required in local and global differential methods for optic flow computation. (ii) This discussion motivates us to describe and evaluate a novel method that combines important advantages of local and global approaches: It yields dense flow fields that are robust against noise. (iii) Spatiotemporal and nonlinear extensions as well as multiresolution frameworks are presented for this hybrid method. (iv) We propose a simple confidence measure for optic flow methods that minimise energy functionals. It allows to sparsify a dense flow field gradually, depending on the reliability required for the resulting flow. Comparisons with experiments from the literature demonstrate the favourable performance of the proposed methods and the confidence measure.

Personal characteristics as moderators of the relationship between customer satisfaction and loyalty—an empirical analysis

Abstract: Previous research on the relationship between customer satisfaction and loyalty has largely neglected the issue of moderator variables. The authors develop a set of hypotheses related to the moderating effect of selected personal characteristics on the satisfaction-loyalty link. These hypotheses are tested in a consumer durables context using multiple group causal analysis. Empirical findings provide reasonable support for the theoretical arguments. Specifically, variety seeking, age, and income are found to be important moderators of the satisfaction-loyalty relationship.

Model-driven development: a metamodeling foundation

Abstract: Metamodeling is an essential foundation for MDD, but there's little consensus on the precise form it should take and role it should play. The authors analyze the underlying motivation for MDD and then derive a concrete set of requirements that a supporting infrastructure should satisfy. They discuss why the traditional "language definition" interpretation of metamodeling isn't a sufficient foundation and explain how it can be extended to unlock MDD's full potential.