Digital Shadow Economy – Literature Review

The virtual environment is a phenomenon that has grown exponentially in recent years, changing the way the economy evolves. Through e-commerce, social media platforms, online stores, or websites, financial resources are rolled both legally and illegally. Thus, some transactions are not accounted for or taxed, and also the concept of the digital shadow economy, defined as economic shadow activities conducted in electronic space, with no physical contact is increasingly present today. This paper aims to review and systematically analyze, through bibliometric analysis, using the Web of Science scientific platform and the VOSviewer software, the notion of digital shadow economy, determining the current state of knowledge in the field. Also, a comparative research was performed between digital shadow economy and the traditional shadow economy. The main findings reveal that digital shadow economy has a novelty character that refers to an economy based on digitized services and products, which escapes the official estimates of the GDP and the main research tendencies concern the conceptualization of the term and its main activity channels, aspects that distinguish it from traditional shadow economy. Furthermore, a thematic cluster, containing links to the digital shadow economy term can be noticed to be around cybercrimes.

Modeling and Visualization of Man’s ‘Digital Shadow’ at Enterprises

The article studies the potential of introducing systems of the situational center in order to build a system providing safe life in the real range of time and effective management of production and organization processes within the frames of the concept of shifting to industry 4.0. On the basis of research findings today's enterprises and organizations should form strategy of their development with due regard to the necessity to digitalize the man. The key goals of this process are monitoring of employees' vital functions, extrapolation and modeling of substandard situations and visualization of generalized information in a suitable format in the range of real time. By analyzing the condition and problems of enterprise digitalization the authors systematized key factors, which should be taken into account for building the advanced system of providing labour safety in the range of real time, proposed the automated management system of providing labour safety based on the system of the situational center and the procedure of developing strategy of enterprise digitalization with regard to HR digitalization, which includes introduction of the system of situational center. By using situational center the modulus for modeling and visualization of ‘digital shadow' was worked out to monitor vital functions of enterprise employees.

Digital Twins for High-Tech Machining Applications—A Model-Based Analytics-Ready Approach

This paper presents a brief introduction to competition-driven digital transformation in the machining sector. On this basis, the creation of a digital twin for machining processes is approached firstly using a basic digital twin structure. The latter is sub-grouped into information and data models, specific calculation and process models, all seen from an application-oriented perspective. Moreover, digital shadow and digital twin are embedded in this framework, being discussed in the context of a state-of-the-art literature review. The main part of this paper addresses models for machine and path inaccuracies, material removal and tool engagement, cutting force, process stability, thermal behavior, workpiece and surface properties. Furthermore, these models are superimposed towards an integral digital twin. In addition, the overall context is expanded towards an integral software architecture of a digital twin providing information system. The information system, in turn, ties in with existing forward-oriented planning from operational practice, leading to a significant expansion of the initially presented basic structure for a digital twin. Consequently, a time-stratified data layer platform is introduced to prepare for the resulting shadow-twin transformation loop. Finally, subtasks are defined to assure functional interfaces, model integrability and feedback measures.

Antecedents and Consequences of Digital Shadow Work in Mobile Shopping Apps Context

Shadow work continues to witness a significant uptick in the context of mobile shopping. Therefore, we question whether shadow work perceived by mobile shoppers may become a bigger problem, create fatigue for mobile shoppers, and lead them to discontinue the use of mobile shopping apps. This study examines the relationship between shadow work and the discontinuance of mobile shopping apps. Data from a total of 266 completed surveys were collected by a market research firm. We adopted partial least squares structural equation modeling (PLS-SEM) to assess both the measurement and structural components of the model. The results show that both information overload and system feature overload positively influence individuals’ shadow work. This study explores the concept of shadow work in the context of mobile shopping apps. Specifically, the study developed the relationships between the antecedents and consequences of shadow work in the mobile shopping context. The main contribution of our study is that it introduces an integrative model of shadow work in the mobile shopping context, highlighting the importance of shadow work.

Digital determination: can information technology become meaningful?

The article analyzes the impact of digital determination and its effects. The author poses a problem - can digital technologies become meaningful? The main goal of the article is aimed at analyzing digital determination in the context of the prospects for its meaningfulness. The article shows the deformations caused by digital determination, offers a classification of subjects, taking into account the degree of involvement in computer interactions. The author identifies the specifics of instrumental and technological rationality, draws attention to the phenomenon of “digital shadow” and infomania. The methodological strategy is based on the method of interpretation and comparative analysis. The principles of objectivity and sociocultural determination, as well as activity and subject-oriented approaches are effective. Of particular importance is the procedure of conceptualization, obtained generalizations. The author attracts modern English-language literature to the study. The main conclusions include the substantiation of the need for a complete restructuring of relations with information technologies in order to subordinate them to human reflection and awareness.

Concept of a System Architecture for a Simulation Data Management In the Digital Twin

The Department of Computer Integrated Design (DiK) at the TU Darmstadt deals with the Digital Twin topic from the perspective of virtual product development. A concept for the architecture of a Digital Twin was developed, which allows the administration of simulation input and output data. The concept was built under consideration of classical CAE process chains in product development. The central part of the concept is the management of simulation input and output data in a simulation data management system in the Digital Twin (SDM-DT). The SDM-DT takes over the connection between Digital Shadow and Digital Master for simulation data and simulation models. The concept is prototypically implemented. For this purpose, real product condition data were collected via a sensor network and transmitted to the Digital Shadow. The condition data were prepared and sent as a simulation input deck to the SDM-DT in the Digital Twin based on the product development results. Before the simulation data and models are simulated, there is a comparison between simulation input data with historical input data from product development. The developed and implemented concept goes beyond existing approaches and deals with a central simulation data management in Digital Twins.