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- Sources and approaches across disciplines in Near Eastern studies : proceedings of the 24th congress, Union Européenne des Arabisants et Islamisants, Leipzig 2008 (2013)
- WertFlex: Wertebasiert flexibel - Nachhaltige Förderung von Innovationsfähigkeit durch persönlichkeitsgerechte Personalentwicklung (2010)
- BPMN 2.0 Serialization - Standard Compliance Issues and Evaluation of Modeling Tools (2013)
- Business Process Model and Notation (BPMN) 2.0 process models are used more and more, both in practice as in academia. Although academic research mainly focuses on sophisticated semantic checks and extensions there still exist problems in the basic usage of BPMN. This paper investigates issues in BPMN model serializations which arise as a result of the complexity and inconsistency of the standard document. We present a set of serialization constraints as a starting point for sophisticated compliance checks on serialized BPMN models. Furthermore, these constraints are used to perform an evaluation of current modeling tools. This evaluation reveals that the creation of standard compliant models is still a non-trivial endeavor.
- A Hybrid OLAP & OLTP Architecture Using Non-Relational Data Components (2013)
- Relational database systems are still the first choice for the realization of business application systems. They are used as operational databases to persist business process data or as the basis for data warehouse systems. In recent years, the NoSQL-movement proposed a number of new non-relational data stores because of changing requirements of Web 2.0 applications and related limitations of relational systems. We argue that these new systems can also be used in OLTP- and right-time OLAP-scenarios. We demonstrate how enterprise application systems can be realized based on concepts of the NoSQL-movement. We propose an architecture that enables the deployment of an appropriate data model to a certain business domain and the integration of OLTP- and OLAP-functionality. Components of the architecture are suited to enhance business data with analysis-relevant information and to perform analysis tasks. To demonstrate the application of the architecture and its analytic features, we introduce a short case study.
- Scrabble yourself to success: Methods in teaching transcription (2013)
- This paper summarizes the results of a study that tested and evaluated two methods for teaching phonemic transcription to German EFL students at university level. The research design included a control group and two training groups receiving treatment with different methods: one based on the transcription of auditive stimuli, the other based on a phonemic adaption of the board game Scrabble®. The different training methods had significant effects on the improvement of transcription skills. A comparison of the training groups did not yield significant differences – the descriptive statistics, however, suggest that phoneme scrabble cannot be recommended as a uniform teaching method.