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Alexandra Mazak

Alexandra Mazak
TU Wien | TU Wien · Institute of Software Technology and Interactive Systems

About

46
Publications
11,312
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357
Citations
Introduction
Skills and Expertise

Publications

Publications (46)
Article
Full-text available
The OMG standard Systems Modeling Language (SysML) has been on the market for about thirteen years. This standard is an extended subset of UML providing a graphical modeling language for designing complex systems by considering software as well as hardware parts. Over the period of thirteen years, many publications have covered various aspects of S...
Article
With the emergence of Cyber-Physical Systems (CPS), several sophisticated runtime monitoring solutions have been proposed in order to deal with extensive execution logs. One promising development in this respect is the integration of time series databases that support the storage of massive amounts of historical data as well as to provide fast quer...
Article
Full-text available
Among the plethora of industrial standards available in the context of smart manufacturing, one series of standards is consistently being mentioned for dealing with manufacturing operations management: IEC 62264. Its second part provides a conceptual model for the description of production systems and their capabilities, including runtime informati...
Preprint
Full-text available
Model-driven engineering (MDE) provides tools and methods for the manipulation of formal models. In this letter, we leverage MDE for the transformation of production system models into flat files that are understood by general purpose planning tools and that enable the computation of plans, i.e., sequences of production steps that are required to r...
Chapter
In order to deal with the increasing complexity of modern systems such as in software-intensive environments, models are used in many research fields as abstract descriptions of reality. On the one side, a model serves as an abstraction for a specific purpose, as a kind of “blueprint” of a system, describing a system’s structure and desired behavio...
Article
Model-driven engineering (MDE) provides tools and methods for the manipulation of formal models. In this work we leverage MDE for the transformation of production system models into flat files that are understood by general purpose planning tools and that enable the computation of "plans", i.e., sequences of production steps that are required to re...
Chapter
One of the main tasks in hardware asset management is to predict types and amounts of hardware assets needed, firstly, for component renewals in installed systems due to failures and, secondly, for new components needed for future systems. For systems with a long lifetime, like railway stations or power plants, prediction periods range up to ten ye...
Article
Full-text available
Variability is crucial in the design of many advanced goods and it is also receiving increasing attention in production systems engineering. Since OPC Unified Architecture plays an important role when it comes to standardized information exchange in modern production systems, it can be a melting pot for information from various engineering domains,...
Article
Full-text available
Driven by present megatrends like digitization and demographic change, Learning Factories all over the world are gaining recognition in science, industry and society. In these collaborative learning environments, students and interested trainees from industry acquire methodological, social and personal competencies for future challenges in producti...
Conference Paper
Full-text available
IEC 62264-2 and AutomationML can co-exist as separate views on the same production system; the former with a slight bias towards the upper levels, the latter slightly biased towards the lower levels of the automation hierarchy. Still, there is quite some semantic and structural overlap between IEC 62264-2 and AutomationML. Therefore, a semantic and...
Article
Production system operators need support for collecting and pre-processing data on production systems consisting of several system components, as foundation for optimization and defect detection. Traditional approaches based on hard-coded programming of such run-time data collection systems take time and effort, and require both domain and technolo...
Conference Paper
Full-text available
OPC Unified Architecture (UA) is a powerful technology for modeling and instantiating domain-specific information in a standardized manner. Its initial application scenario is in the domain of automated production systems, that increasingly have to deal with variability information, (i) regarding the products being manufactured and (ii) regarding t...
Conference Paper
OPC Unified Architecture (UA) is a powerful and versatile platform for hosting information from a large variety of domains. In some cases, the domain-specific information models provide overlapping information, such as (i) different views on a specific entity or (ii) different levels of detail of a single entity. Emerging from a multi-disciplinary...
Chapter
In Rail Automation, planning future projects requires the integration of business-critical data from heterogeneous, often noisy data sources. Current integration approaches often neglect uncertainties and inconsistencies in the integration process and thus cannot guarantee the necessary data quality. To tackle these issues, we propose a semi-automa...
Article
Full-text available
Big Data technology has discarded traditional data modeling approaches as no longer applicable to distributed data processing. It is, however, largely recognized that Big Data impose novel challenges in data and infrastructure management. Indeed, multiple components and procedures must be coordinated to ensure a high level of data quality and acces...
Chapter
In model-driven engineering (MDE), models are mostly used in prescriptive ways for system engineering. While prescriptive models are indeed an important ingredient to realize a system, for later phases in the systems’ lifecycles additional model types are beneficial to use. Unfortunately, current MDE approaches mostly neglect the information upstre...
Chapter
In Anlehnung an die Umsetzungsempfehlung des deutschen Arbeitskreises zu Industrie 4.0 widmen wir uns in diesem Kapitel dem offenen Handlungsfeld der Standardisierung und Referenzarchitektur im Kontext einer modellbasierten horizontalen und vertikalen Integration. Wir zeigen, dass die Zusammenführung international etablierter Standards genutzt werd...
Conference Paper
"Industrie 4.0" aims at flexible production networks that require horizontal integration across companies. Evidently, any production related information exchanged in the network must be vertically forwarded to the corresponding service endpoints of the local production system. Accordingly, there is a need to align information that flows between com...
Conference Paper
Smart manufacturing requires deeply integrated IT systems in order to foster flexibility in the setup, re-arrangement and use of attached manufacturing systems. In a vertical integration scenario, IT systems of different vendors might be in use and proprietary interfaces need to defined in order to allow the exchange of relevant information from on...
Conference Paper
System performance is one of the most critical quality characteristics of Web applications which is typically expressed in response time, throughput, and utilization. These performance indicators, as well as the workload of a system, may be evaluated and analyzed by (i) model-based or (ii) measurement-based techniques. Given the complementary benef...
Chapter
Full-text available
To engineer large, complex, and interdisciplinary systems, modeling is considered as the universal technique to understand and simplify reality through abstraction, and thus, models are in the center as the most important artifacts throughout interdisciplinary activities within model-driven engineering processes. Model-Driven Systems Engineering (M...
Conference Paper
Resource-Event-Agent (REA) has been applied to various engineering and business domains, with a focus on transfer activities rather than transformation activities. In the context of smart manufacturing, vertical integration of IT systems (e.g., business applications and production control systems) is a key factor. In this work, we shed light on the...
Conference Paper
Today, we recognize a discrepancy between design time models concentrating on the desired behavior of a system and its real world correspondents reflecting deviations taking place at runtime. In order to close this gap, design time models must not be static, but evolutionary artifacts so called liquid models. Such liquid models are the cornerstone...
Conference Paper
Enterprise resource planning (ERP) systems are often cumbersome to customize to a client’s needs. Model-driven approaches promise to simplify these attempts. In this work we present an ERP prototype based on the Resource-Event-Agent (REA) business ontology that follows a "model-at-runtime" approach: one may customize the ERP system during runtime b...
Conference Paper
In the context of smart factories, a seamless information exchange between information systems on the same layer (horizontal integration) and between information system son different layers (vertical integration) is a key issue. For this purpose we aim for an integrated modeling framework spanning over production chains and value networks. In build...
Conference Paper
The German working committee for “Industrie 4.0” identified the horizontal integration throughout value networks and the vertical integration of networked manufacturing systems as key issues in the context of smart factories. For this purpose we aim for a universal model-driven industrial engineering framework spanning over production chains and va...
Conference Paper
Quality function deployment (QFD) is a method for quality assurance developed for application in production processes. One prominent tool for implementing QFD is the House of Quality (HoQ), whose basic design principles have been left unchanged for the last decades. Modern concepts for handling product variability, most notably feature models, repr...
Chapter
In Anlehnung an die Umsetzungsempfehlung des deutschen Arbeitskreises zu Industrie 4.0 widmen wir uns in diesem Kapitel dem offenen Handlungsfeld der Standardisierung und Referenzarchitektur im Kontext einer modellbasierten horizontalen und vertikalen Integration. Wir zeigen, dass die Zusammenführung international etablierter Standards genutzt werd...
Article
Often, there is a lack of efficient procedures in order to identify design errors when transforming customer requirements into servic-oriented solution. A well-established approach supporting this kind of transformation in classical requirements engineering is the traceability matrix which allows tracing the coverage of customer requirements by sys...
Conference Paper
Full-text available
Sophisticated business rule engines provide a way to enable users with a non-software-engineering background to take action during the runtime of e.g. an enterprise information system: rules for customers can be defined, based on the turnover realized through them. The REA accounting model defines a concept for the modeling and excecution of busine...
Conference Paper
Full-text available
Enterprise Resource Planning (ERP) systems are nowadays adapted to the company-specific requirements by customization. Whereas smaller and general feature changes are performed quickly by parameterization, changes of a company's business activities may lead to enormous changes in the system's code. To overcome this problem, we introduce an approach...
Conference Paper
Full-text available
A multitude of research works and surveys dealing with ontol-ogy reuse point to a discrepancy between ontology engineers and users when interpreting the meaning of ontology concepts. Missing the engineers' knowl-edge of the concepts' usage in certain contexts may lead to problems (e.g., pragmatic heterogeneity) in the interpretation task caused by...
Conference Paper
Full-text available
The implementation of a domain agnostic software system (such as an enterprise resource planning system or a trading information system) based on the REA model requires a generic, yet highly adaptable software architecture. Building on top of well established academic findings and proposals regarding the REA model we are proposing a software model...

Projects

Projects (2)
Project
TransIT is setting up a digitial framework for research and teaching in subsurface enginnering.
Project
The Christian Doppler Laboratory for Model-Integrated Smart Production (CDL-MINT) investigates the modeling of smart production facilities, as well as the evolution of such models based on production information gathered at runtime. https://cdl-mint.se.jku.at/