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Auflistung nach Autor:in "Meier, Andreas"

1 - 10 von 97
  • Konferenzbeitrag
    Anonymity preserving authorization granting in medical information networks
    (European Conference on eHealth 2006, 2006) Eskeland, Sigurd; Oleshchuk, Vladimir
    Due to the sensitivity of personal medical information, this paper addresses the need of hiding patient identities - in contrast to only keeping their medical data confidential. Thus, it is desirable that personal and meaningful patient identity information like names, addresses, personal identity numbers, etc., are not to be linked to disclosed electronic patient records (EPR). To achieve this, we propose a scheme that enables patients to anonymously grant medical teams authorization to access their EPRs without revealing their identities to the teams providing medical care. An essential benefit is that it enables patients to exert control over their own medical data. A security evaluation is included.
  • Zeitschriftenartikel
    Big Data Analytics
    (HMD Praxis der Wirtschaftsinformatik: Vol. 56, No. 5, 2019) Meier, Andreas
  • Zeitschriftenartikel
    Blockchain
    (HMD Praxis der Wirtschaftsinformatik: Vol. 55, No. 6, 2018) Meier, Andreas
  • Zeitschriftenartikel
    Blockchain = Distributed Ledger + Consensus
    (HMD Praxis der Wirtschaftsinformatik: Vol. 55, No. 6, 2018) Meier, Andreas; Stormer, Henrik
    Die Blockchain ist eine Datenbank für verteilte Buchführung, welche ein dezentrales Transaktionsmanagement über Peer-to-Peer Netzwerke und Konsensalgorithmen realisiert. Jeder gültige Block der Blockchain verweist auf seine vor ihm validierten Blöcke, wodurch eine Kette von verifizierten Blöcken entsteht. Da jeweils eine vollständige Kopie der Blockchain auf den Geräten der Teilnehmer vorhanden ist, kann ein Konsens durch die Mehrheit gefunden werden. Der Überblicksbeitrag erläutert die Grundlagen zur asymmetrischen Verschlüsselung, zur Datenstruktur der Blockchain sowie zum Konsensalgorithmus. Darüber hinaus werden wichtige Anwendungsoptionen skizziert und eine kritische Bewertung zur Blockchain Technologie gegeben. The block chain is a database for distributed accounting (ledger), including a distributed transaction management based on peer-to-peer networks and a consensus algorithm. Any valid block of the block chain refers to its validated blocks in front of it, creating a chain of verified blocks. Since there exists a complete copy of the blockchain on all devices of the participants, a consensus by the majority can be found. This overview article explains the basics for asymmetric cryptography, the data structure of the blockchain as well as the consensus algorithm. In addition, important application options are outlined and a critical evaluation on the blockchain technology is given.
  • Zeitschriftenartikel
    Buchbesprechungen
    (HMD Praxis der Wirtschaftsinformatik: Vol. 51, No. 4, 2014) Meier, Andreas
  • Zeitschriftenartikel
    Bücher
    (HMD Praxis der Wirtschaftsinformatik: Vol. 49, No. 5, 2012) Meier, Andreas; Heilmann, Heidi
  • Zeitschriftenartikel
    Bücher
    (HMD Praxis der Wirtschaftsinformatik: Vol. 50, No. 5, 2013) Meier, Andreas; Knoll, Matthias; Heilmann, Heidi
  • Zeitschriftenartikel
    Bücher
    (HMD Praxis der Wirtschaftsinformatik: Vol. 48, No. 4, 2011) Meier, Andreas
  • Konferenzbeitrag
    Building a smart hospital using RFID technologies
    (European Conference on eHealth 2006, 2006) Guinard, Patrik Fuhrer Dominique
    Technologies of identification by radio frequencies (RFID) experience a fast development and healthcare is predicted to be one of its major growth areas. After briefly introducing the common terminology of the RFID field and its current standards, this paper describes how this emerging technology can be used to build a smart hospital. Indeed, used in combination with mobile devices in eHealth applications, RFID helps optimizing business processes in healthcare and improve patient safety. The second part of this article shows how to use an assets tracking application, called the RFIDLocator, to improve the quality of the hospital services. We developed the RFIDLocator to support the high requirements for scalability and reliability one can expect for such an application. An overview of its distributed software architecture is given. A short cookbook presents the required steps for its configuration to the concrete case of the hospital. Some critical remarks about RFID technology, the important questions it raises and the barriers it has to overcome to be fully integrated in eHealth applications conclude this paper.
  • Konferenzbeitrag
    Building flexible eHealth processes using business rules
    (European Conference on eHealth 2006, 2006) Hüsemann, Stefan; Schäfer, Mike
    This article describes how business agility in a health insurance company can benefit from more flexible business processes. The suggested architecture for a flexible information system is service-oriented and uses a business rule management system to externalize rules. At the organizational level the business rule approach helps to identify and formalize rules.