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Bridging Design and Runtime: Models and Capabilities in Palladio Days 2013 New York

Explore the integration of design and runtime models in the context of Palladio Days 2013 New York, focusing on calibration, parameterization, and extraction of models using monitoring data. Understand the capabilities of Kieker for application-level monitoring, tracing, and resource utilization in runtime analysis. Delve into model extraction, dynamic runtime behavior capture, and the differences between design-time and runtime abstractions.

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Bridging Design and Runtime: Models and Capabilities in Palladio Days 2013 New York

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  1. Design vs Runtime ModelsPalladio Days 2013, New York2013-11-29 André, Catia, Simon, Robert, Eric, Reiner, Qais, Nikolaus, Teerat, Fabian, Ralf BO Group Design vs Runtime

  2. Motivation • Calibration/Extraction of architectural models • How to use monitoring data (from Kieker) to parameterize PCM models • Use monitoring data to characterize parameter distributions in a representative way • Use monitoring data to keep performance model up-to-date • Other QoS properties than performance? • Share existing information in the group BO Group Design vs Runtime

  3. Capabilities of Kieker • Application Level • Tracing • Resources • OS monitors, Utilization • Monitoring virtual resources? • What is the utilization of virtual resources? BO Group Design vs Runtime

  4. Model Extraction • Extract perf model using monitoring data • Extract usage profile • How to know if the extracted model is „good enough“? • Mapping Components to SW artefacts? • Mapping of model entities to monitoring probes? • Ongoing: Instrumentation Language • References: • Extraction: • AndrevH PDays2011, FabianB ASE2011 • Tailored Model Extraction: • AndrevH Diss BO Group Design vs Runtime

  5. Models at Runtime • Using models for runtime analysis (performance, reliability) • Capture dynamic runtime behavior (cloud domain) • Be aware of the reconfiguration options, build the model accordingly • Same abstraction level for design and runtime models? BO Group Design vs Runtime

  6. Design-time vs Runtime abstractions • Differences • Type and amount of data available for model parameterization • Degrees of Freedom • ... • Notion of component instance in PCM? • AssemblyContext not sufficient to identify a component instance • Descartes • Use path of assembly contexts to identify component instances • Flexible service behavior abstractions • Degrees-of-Freedom Model • References: • FabianB SciCo2013, NikoH SoCa 2013 BO Group Design vs Runtime

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