University of Applied Sciences Emden Leer
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Teaching and Learning ICPS: Lessons Learned and Best Practices
No full textIndustrial cyber-physical systems (ICPS) forge the core of real-world digitalized and networked industrial infrastructures. Building a curriculum for ICPS-oriented professionals generates teaching and learning challenges in a multidisciplinary and cultural engineering setting. In this chapter, the authors describe a bachelor-level curriculum offered at the University of Warwick (UK) and a masters-level curriculum implemented at the University of Applied Sciences Emden/Leer (Germany). Aiming to bridge the gap between the realization of Industry 4.0 and educational organizations, the Warwick Manufacturing Group at the University of Warwick developed a degree apprenticeship in Digital Technology Solutions, providing specialization in three pathways (software engineering, data analysis and network engineering) in a four-year program. The key enabling technologies and key enabling features of the Master Industrial Informatics with Specialization in industrial cyber-physical systems are first a study body composed of two major graduate programs and, second, the use of a Digital Factory for learning digitalization through hands-on practical training
A Web-Based Analysis Toolkit for the System Usability Scale
No full textThe System Usability Scale (SUS) questionnaire is a broadly used
usability measurement tool, which is fast in its application and
straight forward in its interpretation. While the original SUS ques-
tionnaire was envisioned as a one-dimensional "quick and dirty"
approach to measure usability, research over the past 25 years
revealed helpful insights and dimensions to contextualize and com-
pare individual SUS scores on. In this paper, we present an open
source web-based analysis toolkit for the SUS questionnaire, which
calculates SUS measurements, analyses them based on the insights
and contextualization scales suggested by previous work, and pro-
vides versatile plotting facilities to create appealing SUS graphs for
scientific publications and presentations
May I Remain Seated: A Pilot Study on the Impact of Reducing Room-Scale Trainings to Seated Conditions for Long Procedural Virtual Reality Trainings
No full textAlthough modern consumer level head-mounted-displays of today provide high-quality room scale tracking, and thus support a high level of immersion and presence, there are application contexts in which constraining oneself to seated set-ups is necessary. Classroom sized training groups are one highly relevant example. However, what is lost when constraining cybernauts to a stationary seated physical space? What is the impact on immersion, presence, cybersickness and what implications does this have on training success? Can a careful design for seated virtual reality (VR) amend some of these aspects? In this line of research, the study provides data on a comparison between standing and seated long (50–60 min) procedural VR training sessions of chemical operators in a realistic and lengthy chemical procedure (combination of digital and physical actions) inside a large 3-floor virtual chemical plant. Besides, a VR training framework based on Maslow's hierarchy of needs (MHN) is also proposed to systematically analyze the needs in VR environments. In the first of a series of studies, the physiological and safety needs of MHN are evaluated among seated and standing groups in the form of cybersickness, usability and user experience. The results (n=32, real personnel of a chemical plant) show no statistically significant differences among seated and standing groups. There were low levels of cybersickness along with good scores of usability and user experience for both conditions. From these results, it can be implied that the seated condition does not impose significant problems that might hinder its application in classroom training. A follow-up study with a larger sample will provide a more detailed analysis on differences in experienced presence and learning success
Augmented Reality based training for student midwives (Heb@AR) – what kind of support do teachers need?
No full textApproaches to manage the user experience process in Agile software development: A systematic literature review
No full textContext:
Software development companies use Agile methods to develop their products or services efficiently and in a goal-oriented way. But this alone is not enough to satisfy user demands today. It is much more important nowadays that a product or service should offer a great user experience — the user wants to have some positive user experience while interacting with the product or service.
Objective:
An essential requirement is the integration of user experience methods in Agile software development. Based on this, the development of positive user experience must be managed. We understand management in general as a combination of a goal, a strategy, and resources. When applied to UX, user experience management consists of a UX goal, a UX strategy, and UX resources.
Method:
We have conducted a systematic literature review (SLR) to analyse suitable approaches for managing user experience in the context of Agile software development.
Results:
We have identified 49 relevant studies in this regard. After analysing the studies in detail, we have identified different primary approaches that can be deemed suitable for UX management. Additionally, we have identified several UX methods that are used in combination with the primary approaches.
Conclusions:
However, we could not identify any approaches that directly address UX management. There is also no general definition or common understanding of UX management. To successfully implement UX management, it is important to know what UX management actually is and how to measure or determine successful UX management
UX Poker: Estimating the Influence of User Stories on User Experience in Early Stage of Agile Development
No full textTowards a structure of a pattern language for visualising in business processes
No full textAesthetic business processes. The motivation for the project presented is to conceptualise a business process as an aesthetic medium that enriches companies, society, and individual lives with new ideas of beauty. For this, it is important to make the spectrum of business processes visible by no longer understanding business processes as exclusively technical systems. In his works, the Nobel Prize winner for literature John Steinbeck focuses on the milieu of simple workers and yet recognises "And this I believe: that the free, exploring mind of the individual human is the most valuable thing in the world."
Visualising. Business process management seeks to understand processes by reducing them to their essential actions, studying them, and making the interplay of those actions as efficient and effective as they can be. This reductionist approach extends to visualising as the chosen method of this project as well. A pattern language will be recreated that enables visual learning in education at universities and in companies. The patterns of this pattern language enable us to explore the essence of processes by developing a holistic view of them, communicating them, and finally, creating them for businesses.
PatternPool. In a recent experiment conducted at the University of Applied Sciences Emden/Leer, students of mechanical engineering, together with industry partners, were asked to visualise the spectrum of business processes, and identify the first patterns and link them in a pattern language. A PatternPool database was created for the explication, documentation, and dissemination of the patterns as best practices.
Visual learning. Through these patterns, knowledge in the world can be combined with knowledge in our heads, and the intangibility of processes can be visualised. Collective inspiration can be set free through learning together from past experience and from others. Therefore, a concept for visual learning based on the pattern approach is to be developed for business process management.
Creativity. The true value of the project is revealed when we understand business processes holistically through visual thinking and learning based on a pattern language, which leads to free-spirited creativity at all organisational levels
Towards additively manufactured dynamic rod seals
No full textIn a recently started DFG-funded research project, the suitability of additive manufacturing
methods and materials for the production of dynamic rod seals is investigated. Initially, a range
of methods was defined, which shall be considered in the next phases of the project. For one
of those methods, Fused Filament Fabrication (FFF), commercially available TPU-materials
were analyzed. A set of potential materials has been defined and analyzed with respect to
different criteria. These criteria comprise the processability, the static stiffness of the material,
and the tribological properties.
In a systematic process, the capability of the materials has been evaluated and compared
with a commercially available reference sealing material to find the most promising ap-
proaches. With these findings, a fully coupled FSI (fluid-structure interaction) simulation model
was developed and parametrized to predict the behavior of 3D-printed seals under working
condition
S0-No-More: A Z-Wave NonceGet Denial of Service Attack utilizing included but offline NodeIDs
No full textIn this paper a vulnerability in the Z-Wave protocol specification, especially in the S0 Z-Wave protocol is presented. Devices supporting this standard can be blocked (denial of service) through continuous S0 NonceGet requests. This way a whole network can be blocked if the attacked devices are Z-Wave network controller. This also effects S2 network controller as long as they support S0 NonceGet requests. As only a minimal amount of nonce requests (1 per ~2 seconds) is required to conduct the attack it cannot be prevented by standard countermeasures against jamming
Screening Process Mining and Value Stream Techniques on Industrial Manufacturing Processes: Process Modelling and Bottleneck Analysis
No full textOne major result of the Industrial Digitalization is the access to a large set of digitalized data and information, i.e. Big Data. The market of analytic tools offers a huge variety of algorithms and software to exploit big datasets. Implementing their advantages into one approach brings better results and empower possibilities for process analysis. Its application in the manufacturing industry requires a high level of effort and remains to be challenging due to product complexity, human-centric processes, and data quality. In this manuscript, the authors combine process mining and value streams methods for analyzing the data from the information management system, applying the approach to the data delivered by one specific manufacturing system. The manufacturing process to be examined is the process of assembling gas meters in the manufacture. This specific and important part of the whole supply-chain process was taken as suitable for the study due to almost full-automated line with data about each process activity of the value-stream in the information system. The paper applies process mining algorithms in discovering a descriptive process model that plays the main role as a basis for further analysis. At the same time, modern techniques of the bottleneck analysis are described, and two new comprehensible methods of bottlenecks detection (TimeLag and Confidence intervals methods), as well as their advantages, will be discussed. Achieved results can be subsequently used for other sources of big data and industrial-compliant Information Management Systems