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Production processes in Industry 4.0 settings are usually highly automated. However, many complicated tasks, such as machine maintenance, must be executed by human workers. In current smart factories, such tasks can be supported by Augmented Reality (AR) devices. These AR tasks rely on high numbers of contextual factors like live data from machines or work safety conditions and are mostly not well integrated into the global production process. This can lead to various problems like suboptimal task assignment, over-exposure of workers to hazards like noise or heat, or delays in the production process. Current Business Process Management (BPM) Systems (BPMS) are not capable of readily taking such factors into account. There- fore, this contribution proposes a novel approach for context- integrated modeling and execution of processes with AR tasks. Our practical evaluations show that our AR Process Framework can be easily integrated with prevalent BPMS. Furthermore, we have created a comprehensive simulation scenario and our findings suggest that the application of this system can lead to various benefits, like better quality of AR task execution and cost savings regarding the overall Industry 4.0 processes.
Die Anforderungen an gute Unternehmensführung (Corporate Governance) nehmen in der Praxis stetig zu. Dies ist zum einen auf eine stark ansteigende Regulierungsdichte zurückzuführen. Beispiele wie die 2018 in Kraft tretende EU-Datenschutzgrundverordnung, das neue CSR-Richtlinie-Umsetzungsgesetz oder das seit 2016 anzuwendende Gesetz zur gleichberechtigen Teilhabe von Frauen in Führungspositionen zeigen, dass internationale und nationale Gesetzgeber das Thema Corporate Governance als außerordentlich wichtig erachten.
Enterprise Architecture (EA) Frameworks (EAFs) have attempted to support comprehensive and cohesive modeling and documentation of the enterprise. However, these EAFs were not conceived for today’s rapidly digitalized enterprises and the associated IT complexity. A digitally-centric EAF is needed, freed from the past restrictive EAF paradigms and embracing the new potential in a data-centric world. This paper proposes an alternative EAF that is digital, holistic, and digitally sustainable - the Digital Diamond Framework. D2F is designed for responsive and agile enterprises, for aligning business plans and initiatives with the actual enterprise state, and addressing the needs of EA for digitized structure, order, modeling, and documentation. The feasibility of D2F is demonstrated with a prototype implementation of an EA tool that applies its principles, showing how the framework can be practically realized, while a case study based on ArchiSurance example and an initial performance and scalability characterization provide additional insights as to its viability.
Potentials of Digital Business Models – Empirical investigation of data driven impacts in industry
(2018)
Optimierung der Oberflächengüte additiv gefertigter transmittierender Optiken mittels Dip-Coating
(2018)
Industry 4.0 production comprises complicated highly automated processes. However, human activities are also a crucial component of these processes, e.g., for machine main- tenance. Task assignment of human resources in this domain is challenging, as many factors have to be taken into account to ensure effective and efficient activity execution and satisfy special conditions (like worker safety). To overcome the limita- tions of current Business Process Management (BPM) Systems regarding activity resource assignment, this contribution provides a BPM-integrated approach that applies fuzzy sets for activity assignment. Our findings suggest that this approach can be easily applied to complex production scenarios, while providing efficient performance even with a large number of concurrent activity assignment requests. Additionally, our evaluation shows its potential for improved work distribution which can lead to cost savings in Industry 4.0 production processes.
Die vorliegende Untersuchung beschäftigt sich mit der Umsetzung und Implementierung von Compliance-Management in deutschen Unternehmen. Dazu wurden 142 Unternehmen anhand einer elektronischen Umfrage befragt. Der Fragebogen enthält 32 Fragen, diese sind in die drei Abschnitte „allgemeine Unternehmensfragen“, „Fragen zum Compliance Management“ und „demographische Daten“ unterteilt. Die Umfrage fokussiert sich hierbei besonders auf Fragestellungen hinsichtlich der organisatorischen Eingliederung, Funktionsweise, Aufgaben und Instrumente sowie der Bewertung des Compliance-Managements innerhalb der Unternehmen.
Die vorliegende Studie beschäftigt sich mit der Hygiene-Compliance in Krankenhäusern.
Zur Einhaltung von Regeln der Hände- und Flächendesinfektion wurden hierzu Entscheider von Krankenhäusern in Deutschland, Österreich und der Schweiz befragt.
In der Studie zeigt sich eine starke Sensibilisierung für das Thema Compliance. Hier ist hinzuzufügen, dass die Studie vor der Corona-Pandemie durchgeführt wurde, und
bereits zu diesem Zeitpunkt gab es eine Aufmerksamkeit für das Thema.
While Virtual Reality (VR) has been applied to various domains to provide new visualization and interaction capabilities, enabling programmers to utilize VR for their software development and maintenance tasks has been insufficiently explored. In this paper, we present the Hyper-Display Environment (HyDE) in the form of a mixed-reality (HyDE-MR) or virtual reality (HyDE-VR) variant respectively, which provides simultaneous multiple operating system window visualization with integrated keyboard/mouse viewing and interaction using MR or in pure VR via a virtual keyboard. This paper applies HyDE in a software development case study as an alternative to typical non-VR Integrated Development Environments (IDEs), supporting software engineering tasks with multiple live screens in VR as an augmented virtuality. The MR solution concept enables programmers to benefit from VR visualization and virtually unlimited information displays while supporting their more natural keyboard interaction for basic code-centric tasks. Thus, developers can leverage VR paradigms and capabilities while directly interacting with their favorite tools to develop and maintain program code. A prototype implementation is described, with a case study demonstrating its feasibility and an initial empirical study showing its potential.
Hardcore Gamer Profiling
(2018)
Development and trial of a blended learning concept for students in engineering study courses
(2018)
DEKXTROSE: An Education 4.0 Mobile Learning Approach and Object-Aware App Based on a Knowledge Nexus
(2020)
The exponential growth in knowledge coupled with the decreasing knowledge half-life creates a challenging situation for educational programs - particularly those preparing software engineers for their very dynamic high-technology field. Teachers in high technology education areas are challenged in selecting and making relevant knowledge intuitively accessible to students, especially with regard the highly dynamic digital and software technologies. This paper contributes a knowledge nexus-based multimedia approach aligned with Higher Education 4.0 for creating learning apps on mobile devices that support multiple didactic models, leverage intrinsic curiosity and motivation, support gamification, and enable digital collaboration. Object recognition is used to trigger learning paths, and various didactic methods are supported via workflow-like learning flows to support group or team-based learning. A prototype app was realized to demonstrate its feasibility and an empirical evaluation in software engineering shows the didactic potential and advantages of the approach, which can be readily generalized and applied to the arts, sciences, etc.
Databases are becoming an ubiquitous and integral part of most software as the data era and the Internet of Everything unfolds. Alternative database types such as NoSQL grow in popularity and allow data to be stored and accessed more simply or in new ways. Thus, software developers, not just database specialists, are more likely to encounter and need to deal with databases. Virtual Reality (VR) technology has grown in popularity, yet its integration in the software development tool chain has been limited. One potential application area for VR technology that has not been sufficiently explored is database-model visualization. This paper describes Virtual Reality Immersion in Data Models (VRiDaM), a generic database-model approach for visualizing, navigating, and conveying database-model information interactively. It describes and explores both native VR and WebVR solution concepts, with prototypes showing the viability of the approach.
Cybercrime im Mittelstand
(2020)
Die Bedrohung durch Cyber-Kriminalität entwickelt sich ständig weiter. Auch die Studie des Aalener Instituts für Unternehmensführung (AAUF) zeigt, dass Cyber-Security ein durchaus Ernst zunehmendes Thema ist, dessen sich die Geschäftsleitung zwingend annehmen sollte, gehören Cyber-Angriffe doch mittlerweile schon zum Alltag vieler Unternehmen.
Die vorliegende Studie des Aalener Instituts für Unternehmensführung (AAUF)zur Risikomanagementpraxis in deutschen Unternehmen zeigt, dass Risikomanagement für die Unternehmen ein Thema ist, welches aktiv von der Geschäftsführung/dem Vorstand diskutiert wird und welchem mehrheitlich eine mittlere bis sehr hohe Relevanz beigemessen wird, die in Zukunft sogar noch steigen wird.
Forming complex parts out of high and ultra-high strength aluminium alloys has proved to be more challenging in comparison to the currently used deep drawing steels. Nevertheless, aluminium alloys show a limited formability in contrast with, for example, deep drawing steels. Novel processes like Warm-forming, W-Temper or Hotforming, offer the potential to produce light and highly integrated one-piece components from such aluminium alloys at elevated temperatures. When considering aluminium alloys of the 7000 group, which can reach strength values (UTS) of about 600 MPa, crash components such as side impact bars would offer a suitable field of application.
Forming at elevated temperatures, in particular with the Hotforming process, offers high potential in the production of complex structural components on the one hand and in the use of existing press hardening equipment on the other. To date, the material behaviour of aluminium alloys in the 7000 group, applied in such processes and in the later final state after forming, is not sufficiently known.
Therefore, in this study, systematic investigations on the formability and the final strength during and after forming at elevated temperature of the EN AW-7075 aluminium wrought alloy from different suppliers are conducted. In general, material- and damage/ failure models were created and implemented into simulation in order to make predictions. Characterisation of the plastic material properties on the basis of various tensile specimens as shear-, notched-, tensile- and Erichsen tests are carried out to adapt the complex material- and failure models such as Barlat YLD2000 and GISSMO to the experimental values using a parameter optimisation. These were made for the material conditions during forming, i.e. after solution heat treatment, the final condition after artificial ageing at 180°C for 20 minutes, which corresponds to the cathodic dip coating, and the T6 condition, which is the highest strength condition.
To evaluate a suitable friction coefficient for high temperature forming processes, anti-friction agents are screened, and the potential applicability evaluated by strip-drawing tests. Thereby, using an analytical relationship, friction coefficients are determined at room temperature and 180°C, which are used as corresponding friction model for the finite element forming simulation.
Crash simulations using the nonlinear finite element method (FEM) of side impact protection beams are used to demonstrate the weight saving potential of high and ultra-high strength aluminium alloys compared to a beam made of press hardened steel. A weight saving of about 20 % could be achieved with the same crash performance. This can be significantly increased to around 30 % - 40 % by using local reinforcements such as CFRP or GFRP (carbon/ glass fibre reinforced plastic) patch. For this reason, a novel process was developed which is based on the conventional Hotforming process with an integrated thermal direct joining step called “Extended Hotforming”.
Subsequently, a heatable forming tool for the production of a serial like sheet metal side impact beam was developed to validate the finite element simulation and to demonstrate the potential of the forming processes at elevated temperatures for aluminium sheet metal components.
SARS-CoV-2 bestimmt maßgeblich unseren Alltag. Seit einiger Zeit ständiger
Wegbegleiter im öffentlichen Raum und teilweise auch modisches Accessoire: Der Mund-Nasenschutz. In einer aktuellen Mixed-Method-Studie geht das Institut für Unternehmensführung (AAUF) der Hochschule Aalen der privaten Nutzung von Mund-Nasenschutz im öffentlichen Raum (Einzelhandel und ÖPNV) auf den Grund. Dafür wurden im Zeitraum vom 25.05.2020 bis 13.06.2020 insgesamt 2.393 Personen in einer Online-Erhebung befragt und die gewonnenen Erkenntnisse um persönliche Interviews (433 Probanden) und Beobachtungen (691 Probanden) vor diversen Supermärkten und Einkaufszentren im süddeutschen Raum ergänzt.
SARS-CoV-2 bestimmt maßgeblich unseren Alltag. Seit einiger Zeit ständiger
Wegbegleiter im öffentlichen Raum und teilweise auch modisches Accessoire: Der
Mund-Nasenschutz. In einer aktuellen Mixed-Method-Studie geht Institut für Unternehmensführung (AAUF) der Hochschule Aalen der privaten Nutzung von Mund-
Nasenschutz im öffentlichen Raum (Einzelhandel und ÖPNV) auf den Grund. Dafür wurden im Zeitraum vom 25.05.2020 bis 13.06.2020 insgesamt 2.393 Personen in
einer Online-Erhebung befragt und die gewonnenen Erkenntnisse um Beobachtungen (691 Probanden) vor diversen Supermärkten und Einkaufszentren im süddeutschen Raum und persönliche Interviews (433 Probanden) ergänzt.
SARS-CoV-2 bestimmt maßgeblich unseren Alltag. Seit einiger Zeit ständiger Wegbegleiter im öffentlichen Raum und teilweise auch modisches Accessoire: Der Mund-Nasenschutz. Im Rahmen einer Mixed-Method-Studie geht das Aalener Institut für Unternehmensführung (AAUF) der privaten Nutzung von Mund-Nasenschutz im öffentlichen Raum (Einzelhandel und ÖPNV) auf den Grund. Dafür wurden im Zeitraum vom 25.05.2020 bis 13.06.2020 insgesamt 2.393 Personen in einer Online-Erhebung befragt und die gewonnenen Erkenntnisse um persönliche Interviews (433 Probanden) und Beobachtungen (691 Probanden) vor diversen Supermärkten und Einkaufszentren im süddeutschen Raum ergänzt. Dieser Forschungsbericht enthält die Ergebnisse der während des Zeitraums vom 02.06.2020 bis 06.06.2020 durchgeführten Interviews.
As the amount of software source code increases, manual approaches for documentation or detection of software design patterns in source code become inefficient relative to the value. Furthermore, typical automatic pattern detection tools are limited to a single programming language. To address this, our Design Pattern Detection using Machine Learning (DPDML) offers a generalized and programming language agnostic approach for automated design pattern detection based on machine learning (ML). The focus of our evaluation was on ensuring DPDML can reasonably detect one design pattern in the structural, creational, and behavioral category for two popular programming languages (Java and C#). 60 unique Java and C# code projects were used to train the artificial neural network (ANN) and 15 projects were then used to test pattern detection. The results show the feasibility and potential for pursuing an ANN approach for automated design pattern detection.