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"Hewing, Michael"
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Business Process Blueprinting - an enhanced view on process performance
Purpose - In contemporary times process-oriented approaches in information management are elementary in meeting business challenges. However, most methods for business process management (BPM) focus on improved performance from only the company's perspective. They neglect the growing importance of value co-creation between company and customer that typically results from a service-dominant logic. Modern BPM methods need to focus on the internal performance of processes whilst including the customer's perspective. This paper aims to address these issues.Design methodology approach - By combining the market-oriented approach, service blueprinting, with the syntax of business process modeling, the authors introduce a method that visualizes and analyzes processes simultaneously from the company's and customer's point of view. Within this integrated approach, information management and marketing are linked. A used case illustrates implementation and benefits of this method.Findings - This paper addresses the gap between marketing and information management sciences. \"Business Process Blueprinting\" (BP2) provides a conceptual foundation for a further integration of these two scopes of interest.Research limitations implications - The integrated view on processes supports an enhanced understanding of process performance. In its current stage, the method reflects a basic combined approach - further development is needed. Well-established models and tools from controlling and marketing as well as from other fields can be integrated to open this analysis for service elements.Practical implications - Applying BP2 to practical process analysis promotes a better understanding of the customer's process perception. This potentially leads to a more efficient and effective process design.Originality value - The paper introduces the missing method for the integration of the effectiveness-driven perspective into business process modeling.
Journal Article
The Prompt Canvas: A Literature-Based Practitioner Guide for Creating Effective Prompts in Large Language Models
The rise of large language models (LLMs) has highlighted the importance of prompt engineering as a crucial technique for optimizing model outputs. While experimentation with various prompting methods, such as Few-shot, Chain-of-Thought, and role-based techniques, has yielded promising results, these advancements remain fragmented across academic papers, blog posts and anecdotal experimentation. The lack of a single, unified resource to consolidate the field's knowledge impedes the progress of both research and practical application. This paper argues for the creation of an overarching framework that synthesizes existing methodologies into a cohesive overview for practitioners. Using a design-based research approach, we present the Prompt Canvas, a structured framework resulting from an extensive literature review on prompt engineering that captures current knowledge and expertise. By combining the conceptual foundations and practical strategies identified in prompt engineering, the Prompt Canvas provides a practical approach for leveraging the potential of Large Language Models. It is primarily designed as a learning resource for pupils, students and employees, offering a structured introduction to prompt engineering. This work aims to contribute to the growing discourse on prompt engineering by establishing a unified methodology for researchers and providing guidance for practitioners.
Paper
Renal and hepatic function of patients with severe tricuspid regurgitation undergoing inferior caval valve implantation
Due to progressive abdominal-venous congestion severe tricuspid regurgitation (TR) is a common cause of cardiorenal and cardiohepatic syndrome. We initiated the TRICAVAL study to compare interventional valve implantation into the inferior vena cava (CAVI) versus optimal medical therapy (OMT) in severe TR. In the present subanalysis, we aimed to evaluate the effects of CAVI on clinical signs of congestion, renal and hepatic function. TRICAVAL was an investigator-initiated, randomized trial. Twenty-eight patients with severe TR were randomized to OMT or CAVI using an Edwards Sapien XT valve. Probands who completed the 3-month follow-up (CAVI [
n
= 8], OMT [
n
= 10]) were evaluated by medical history, clinical examination, and laboratory testing at baseline, 3 and 12 months. After 3 months, the CAVI group exhibited a significant reduction of body weight (from 80.7 [69.0–87.7] kg to 75.5 [63.8–84.6] kg,
p
< 0.05) and abdominal circumference (from 101.5 ± 13.8 cm to 96.3 ± 15.4 cm,
p
≤ 0.01) and a trend to lower doses of diuretics compared to OMT. Renal and hepatic function parameters did not change significantly. Within a short-term follow-up, CAVI led to an improvement of clinical signs of venous congestion and a non-significant reduction of diuretic doses compared to OMT.
Journal Article
Effect of inferior caval valve implantation on circulating immune cells and inflammatory mediators in severe tricuspid regurgitation
Background
Interventional valve implantation into the inferior vena cava (CAVI) lowers venous congestion in patients with tricuspid regurgitation (TR). We evaluated the impact of a reduction of abdominal venous congestion following CAVI on circulating immune cells and inflammatory mediators.
Methods
Patients with severe TR were randomized to optimal medical therapy (OMT) + CAVI (
n
= 8) or OMT (
n
= 10). In the OMT + CAVI group, an Edwards Sapien XT valve was implanted into the inferior vena cava. Immune cells and inflammatory mediators were measured in the peripheral blood at baseline and three-month follow-up.
Results
Leukocytes, monocytes, basophils, eosinophils, neutrophils, lymphocytes, B, T and natural killer cells and inflammatory markers (C-reactive protein, interferon-gamma, interleukin-2, -4, -5, -10, and tumor necrosis factor-alpha) did not change substantially between baseline and three-month follow-up within the OMT + CAVI and OMT group.
Conclusion
The present data suggest that reduction of venous congestion following OMT + CAVI may not lead to substantial changes in systemic inflammation within a short-term follow-up.
Clinical trial registration
NCT02387697
Graphical Abstract
Journal Article