Abstract Subdifferential Calculus and Semi-Convex Functions

∗ The work is partially supported by NSFR Grant No MM 409/94.We develop an abstract subdifferential calculus for lower semicontinuous functions and investigate functions similar to convex functions. As application we give sufficient conditions for the integrability of a lower semicontinuous function

IT Project Management Control and the Control Objectives for IT and Related Technology (CobiT) Framework

Motivated by scarce academic consideration of project management control frameworks, this article explores usage, value and structure of frameworks with a focus on the popular Control Objectives for IT and related Technology (CobiT) construct. We attempt to add to an empirically validated structure of internal control over IT project management by including CobiT's views on the intended domain of content. Results from the empirical survey indicate that the metrics suggested by CobiT are regarded as feasible and important by project management professionals, and are regularly used in controlling practice. Experience, regularity of significant projects and the size of the hosting organisations, however, seem to be stronger moderators of success rates than the use of a management control system with or without support of CobiT. CobiT's suggestions are of generic nature and in particular useful for programme performance management. The latent dimensions of project quality on process and activity levels were not validated and gaps to other project assessment models were identified

Slopes and Moreau-Rockafellar Theorem

Properties of local and global slope of a function and its approximate critical points sets are studied in relation to determination of the function

ENABLING DIGITAL INNOVATION IN PRODUCT-CENTRIC FIRMS THROUGH MICROFOUNDATIONS

Digital innovation poses a threat for incumbent product-centric firms as digitalization blurs industry boundaries and lowers entry barriers to new entrants. However, digital innovation offers many opportunities for incumbents to sustain and successfully compete in the new digital space, if they can overcome the challenges associated with the development and adoption of digital innovation practices. This study empirically explores how incumbent product-centric firms based in Germany, Switzerland, and Austria master the challenge of digital innovation by looking for specific microfoundations through the lens of the dynamic capabilities framework. The grounded theory method is used to get a subjective view of practitioners. The study’s contribution is two-fold. Firstly, it addresses criticism related to the practical application of the dynamic capabilities framework by providing a detailed view on specific underlying microfoundations. Secondly, it aims at expanding our understanding of how digital innovation evolves by providing key microfoundations deemed important by practice for the development of digital innovation among product-centric firms

Digital Innovation Management and Path Dependence: An Integrated Perspective of Manufacturing Incumbents

Is digital innovation a big chance or a big threat for physical product-centric incumbents? Building on the unique characteristics of digital innovation, new market players can break the dominance of incumbents by providing digitally enabled products with distinct characteristics. Therefore, this paper empirically explores the dynamics within incumbents related to digital innovation management. Qualitative methods are used to systematically and inductively gain insights into how digital innovation is considered in the context of incumbents with physical product-driven business models. We use path dependence theory to explain the findings and support theoretical generalization of our results. The study contributes to the literature on digital innovation, how incumbents manage digital innovation under certain circumstances, and the related impacts on their business model. Further, we suggest three stages of digital innovation management in the context of path dependence