Norbert Siegmund, J. Siegmund, M. Soffner, Jana Fruth, V. Köppen
{"title":"Challenges of secure and reliable data management in heterogeneous environments","authors":"Norbert Siegmund, J. Siegmund, M. Soffner, Jana Fruth, V. Köppen","doi":"10.1145/1837154.1837157","DOIUrl":"https://doi.org/10.1145/1837154.1837157","url":null,"abstract":"Ubiquitous computing is getting more important since requirements for complex systems grow fast. In these systems, embedded devices have to fulfill different tasks. They have to monitor the environment, store data, communicate with other devices, and react to user input. In addition to this complexity, quality issues such as security and reliability have to be considered, as well, due to their increasing use in life critical application scenarios. Finally, different devices with different application goals are used, which results in interoperability problems. In this paper, we highlight challenges for interoperability, data management, and security, which arise with complex systems. Furthermore, we present approaches to overcome different problems and how an integrated solution can be realized using software product line techniques.","PeriodicalId":131720,"journal":{"name":"International Workshop on Digital Engineering","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128755895","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Visualization of robot's awareness and perception","authors":"André Dietrich, M. Schulze, S. Zug, J. Kaiser","doi":"10.1145/1837154.1837160","DOIUrl":"https://doi.org/10.1145/1837154.1837160","url":null,"abstract":"Today, direct interaction between humans and robots is limited, although the combination of human flexibility and robots power enables a growing productivity. The problem for humans lies in the nearly unpredictable behavior and motion of the robot itself. However, we can enhance human's view with more information to get knowledge about robot's perception and awareness. We use Augmented Reality methods for providing the information in an adaptable visualization for different user types. We show that our approach leads to shorter development cycles as well as to safer human-robot interaction.","PeriodicalId":131720,"journal":{"name":"International Workshop on Digital Engineering","volume":"84 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131814310","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Categorisation of data management solutions for heterogeneous data in collaborative virtual engineering","authors":"S. Vornholt, Ingolf Geist, Yuexiao Li","doi":"10.1145/1837154.1837156","DOIUrl":"https://doi.org/10.1145/1837154.1837156","url":null,"abstract":"Computer based virtual development is the basis of product engineering, called virtual engineering. The increasing demand of virtual engineering solutions for new domains and companies leads to a huge width of approaches in this area. To enhance the communication and collaboration between engineers, engineering processes and tasks are supported by specialized applications. Each of the collaboration solutions has benefits and weaknesses, depending on the tasks. This paper analyzes collaboration approaches, i.e., different exchange and integration techniques for the virtual engineering domain. To enable the classification and comparison of existing data management solutions, collaboration techniques and technical approaches to handle heterogeneous data are categorized. The developed categories will help choosing or developing new collaboration systems.","PeriodicalId":131720,"journal":{"name":"International Workshop on Digital Engineering","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115836230","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
T. Mönch, S. Adler, P. Hahn, Ivo Rössling, B. Preim
{"title":"Distance-aware smoothing of surface meshes for surgical planning","authors":"T. Mönch, S. Adler, P. Hahn, Ivo Rössling, B. Preim","doi":"10.1145/1837154.1837161","DOIUrl":"https://doi.org/10.1145/1837154.1837161","url":null,"abstract":"The evaluation of spatial relationships between anatomic structures is a major task in surgical planning. Surface models generated from medical image data (intensity, binary) are often used for visualization and 3D measurement of extents and distances between neighboring structures. In applications for intervention or radiation treatment planning, the surface models need to exhibit a natural look (referring to smoothness of the surface), but also to be accurate. Smoothing algorithms allow to reduce artifacts from mesh generation, but the result is always a tradeoff between smoothness and accuracy. Required features will be removed and distances between adjacent structures get changed. Thus, we present a modification to common mesh smoothing algorithms, which allows to generate smooth surfaces models while distances of neighboring structures are preserved. We compared our distance-aware approach to conventional uniform smoothing methods and evaluated the resulting surface models regarding smoothness and accuracy for their application within the context of surgical planning.","PeriodicalId":131720,"journal":{"name":"International Workshop on Digital Engineering","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132261458","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Sven Tuchscheerer, J. Dittmann, Tobias Hoppe, J. Krems
{"title":"Theoretical analysis of security warnings in vehicles and design challenges for the evaluation of security warnings in virtual environments","authors":"Sven Tuchscheerer, J. Dittmann, Tobias Hoppe, J. Krems","doi":"10.1145/1837154.1837159","DOIUrl":"https://doi.org/10.1145/1837154.1837159","url":null,"abstract":"In this paper, we present an approach for designing security warnings in vehicles for software based security incidents. With this we pursue the goal of reducing safety relevant component failures, which can be caused by manipulated or malicious software. The basis of our work is a theoretical analysis of the correlation of manipulated software (including malware) in automotive systems with the safety relevant failures of system components. We describe the potential of a security warning, which can be presented in time ahead of a traditional safety warning: The latter would only indicate safety-relevant implications that potentially arise later as an implication of the preceding security incident. In this paper we suggest three exemplary icons for a combined security-safety warning. Combined warning means a warning not at the time of a safety-relevant failure but already in the detection of the security-violation (e.g. manipulated software in the vehicle). An essential precondition is a recognition algorithm for such malicious software, which has been examined in previous research like [3]. Based on theoretical analyses, we introduce an exemplary design for the testing of these warnings in a virtual environment, precisely, in a driving simulator. A couple of factors play a central role in such evaluations, such as: perception, reaction of the driver, interpretation of warnings and security awareness. The results can be interpreted in the context of the fundamental aim: the reduction of accidents by security alerts. They thus serve as a recommended course of action for implementation in future vehicles.","PeriodicalId":131720,"journal":{"name":"International Workshop on Digital Engineering","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128440068","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
J. Dittmann, B. Karpuschewski, Jana Fruth, M. Petzel, Richard Münder
{"title":"An exemplary attack scenario: threats to production engineering inspired by the Conficker worm","authors":"J. Dittmann, B. Karpuschewski, Jana Fruth, M. Petzel, Richard Münder","doi":"10.1145/1837154.1837158","DOIUrl":"https://doi.org/10.1145/1837154.1837158","url":null,"abstract":"In this article an existing formalisation methodology for malicious code [6] is used to describe characteristics of the worm Conficker variant C to analyse oncoming threats to modern production engineering systems. Based on the Conficker worm formalism and a component model of an exemplary production scenario (the automatic chamfering of great gears with an industrial robot) an exemplary methodology is demonstrated to analyse malware threats to component related security aspects and to compare the criticality of different malware instances for a special system. On the basis of this methodology potential threats to the security of software and hardware components of the exemplary production scenario are simulated and could also be used to illustrate security threats and protection concepts with virtual techniques to help software engineers to program secure software. The threats are illustrated by the means of four exemplary scenarios.","PeriodicalId":131720,"journal":{"name":"International Workshop on Digital Engineering","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129481784","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Matthias Güdemann, Stefan Kegel, F. Ortmeier, Olaf Poenicke, Klaus Richter
{"title":"SysML in digital engineering","authors":"Matthias Güdemann, Stefan Kegel, F. Ortmeier, Olaf Poenicke, Klaus Richter","doi":"10.1145/1837154.1837155","DOIUrl":"https://doi.org/10.1145/1837154.1837155","url":null,"abstract":"Today, most projects are interdisciplinary. They require expertise from various domains like legal regulations, mechanical restrictions and software engineering. Digital engineering is a relatively new discipline, which aims at minimizing friction losses, when different disciplines meet each other.\u0000 This paper shows how model-based development on the basis of SysML can be used in digital engineering to develop a common system model. Such a common system model helps to track requirements, provides precise specification of (sub-)components together with necessary interfaces, intended interactions and information flow among them.\u0000 This information supports the overall development process as it is a consistent specification of the whole system. Parts of this model can then be used as input for disciplines dealing with specific subproblems. It is also providing means to test the interaction of different components and can even be used for formal proofs of correctness using semantically well-founded models and automatic proof techniques.\u0000 The paper is centered around a real-world case study: a logistic monitoring system at an airport cargo hub. This case study can be seen as a benchmarking scenario for research questions as well as an illustrative example for using SysML in digital engineering.","PeriodicalId":131720,"journal":{"name":"International Workshop on Digital Engineering","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121642605","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Overlay of patient-specific anatomical data for advanced navigation in surgery simulation","authors":"S. Adler, Zein Salah, R. Mecke, G. Rose, B. Preim","doi":"10.1145/1837154.1837162","DOIUrl":"https://doi.org/10.1145/1837154.1837162","url":null,"abstract":"This paper introduces a method to integrate patient specific anatomical image data into our surgery simulation. The image data can be used to plan the next steps within the simulated surgery intervention. The anatomical images are presented with in anatomical directions, but also plane parallel and orthogonal. The camera orthogonal view is intended to give an overview over the operational field and to explore the anatomical structures for the current point of view. The plane parallel view is used to recognize changes of tissue in the direction of infiltration to avoid injuries during interaction. We support basic histogram manipulation and augmentation in real time by using advanced rendering techniques, no additional computation time is required during rendering. The presented method supports apprenticeship and training of surgeons when interacting within a simulated intervention, but is also useful for the training of the interpretation of the medical images, because the anatomical data and the related images can be explored without any risk to the patient. With the introduction of target points to mark and augment regions of interests we support advanced guidance to those points, whereas the location of the augmentation is visible within multiple viewports.","PeriodicalId":131720,"journal":{"name":"International Workshop on Digital Engineering","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133988505","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Use of super resolution algorithms for indoor positioning keeping novel designed WLAN signal structure","authors":"T. Khanzada, A. R. Ali, S. Napoleon, A. Omar","doi":"10.1145/1837154.1837163","DOIUrl":"https://doi.org/10.1145/1837154.1837163","url":null,"abstract":"This paper presents the utilization of super resolution algorithms for the indoor positioning applications in order to estimate Time Difference of Arrival (TDOA) and distances using Orthogonal Frequency Division Multiplexing (OFDM) transceiver. Optimal reduction in Distance Measurement Error (DME) is achieved. We have utilized OFDM/Single Carrier-Decision Feedback Equalizer (OFDM/SC-DFE) signal structure presented in our previous works. The super resolution algorithms Estimation of Signal Parameters via Rotational Invariance Technique (ESPRIT), Root Multiple Signal Classification (Root-MUSIC) and Matrix Pencil (MP) are compared for DME estimation. We have applied Minimum Descriptive Length (MDL) criterion to these algorithms, that provides optimized estimate of the length of actual Channel Impulse Response (CIR) by eliminating the noise component from the dispersive CIR. Our scheme is based on two different antennas used to transmit the pre-half-zero-carriers and post-half-zero-carriers OFDM symbols respectively, mapped to multiple carriers using Wireless Local Area Network (WLAN) system and received by the object to be positioned.","PeriodicalId":131720,"journal":{"name":"International Workshop on Digital Engineering","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130101611","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}