Modelling Event-Based Interactions in Component-Based Architectures for Quantitative System Evaluation

Modelling Event-Based Interactions in Component-Based Architectures for Quantitative System Evaluation

Author: Christoph Rathfelder

Publisher: KIT Scientific Publishing

Published: 2014-07-31

Total Pages: 388

ISBN-13: 3866449690

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This dissertation thesis presents an approach enabling the modelling and quality-of-service prediction of event-based systems at the architecture-level. Applying a two-step model refinement transformation, the approach integrates platform-specific performance influences of the underlying middleware while enabling the use of different existing analytical and simulation-based prediction techniques.


Efficiently Conducting Quality-of-Service Analyses by Templating Architectural Knowledge

Efficiently Conducting Quality-of-Service Analyses by Templating Architectural Knowledge

Author: Lehrig, Sebastian Michael

Publisher: KIT Scientific Publishing

Published: 2018-04-06

Total Pages: 552

ISBN-13: 3731507560

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Previously, software architects were unable to effectively and efficiently apply reusable knowledge (e.g., architectural styles and patterns) to architectural analyses. This work tackles this problem with a novel method to create and apply templates for reusable knowledge. These templates capture reusable knowledge formally and can efficiently be integrated in architectural analyses.


Performance Problem Diagnostics by Systematic Experimentation

Performance Problem Diagnostics by Systematic Experimentation

Author: Wert, Alexander

Publisher: KIT Scientific Publishing

Published: 2018-03-29

Total Pages: 486

ISBN-13: 3731506777

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In this book, we introduce an automatic, experiment-based approach for performance problem diagnostics in enterprise software systems. The proposed approach systematically searches for root causes of detected performance problems by executing series of systematic performance tests. The presented approach is evaluated by various case studies showing that the presented approach is applicable to a wide range of contexts.


An Approach for Guiding Developers to Performance and Scalability Solutions

An Approach for Guiding Developers to Performance and Scalability Solutions

Author: Heger, Christoph

Publisher: KIT Scientific Publishing

Published: 2018-09-05

Total Pages: 390

ISBN-13: 373150698X

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The quality of enterprise software applications plays a crucial role for the satisfaction of the users and the economic success of the enterprises. Software applications with unsatisfying performance and scalability are perceived by its users as low in quality, as less interesting and less attractive, and cause frustration when preventing the users from attaining their goals. This book proposes an approach for a recommendation system that enables developers who are novices in software perform.


Modeling and Prediction of I/O Performance in Virtualized Environments

Modeling and Prediction of I/O Performance in Virtualized Environments

Author: Noorshams, Omar-Qais

Publisher: KIT Scientific Publishing

Published: 2017-03-10

Total Pages: 312

ISBN-13: 373150359X

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We present a novel performance modeling approach tailored to I/O performance prediction in virtualized environments. The main idea is to identify important performance-influencing factors and to develop storage-level I/O performance models. To increase the practical applicability of these models, we combine the low-level I/O performance models with high-level software architecture models. Our approach is validated in a variety of case studies in state-of-the-art, real-world environments.


Consolidation of Customized Product Copies into Software Product Lines

Consolidation of Customized Product Copies into Software Product Lines

Author: Klatt, Benjamin

Publisher: KIT Scientific Publishing

Published: 2016-11-10

Total Pages: 484

ISBN-13: 3731503689

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In software development, project constraints lead to customer-specific variants by copying and adapting the product. During this process, modifications are scattered all over the code. Although this is flexible and efficient in the short term, a Software Product Line (SPL) offers better results in the long term, regarding cost reduction, time-to-market, and quality attributes. This book presents a novel approach named SPLevo, which consolidates customized product copies into an SPL.


Automated Experiments for Deriving Performance-relevant Properties of Software Execution Environments

Automated Experiments for Deriving Performance-relevant Properties of Software Execution Environments

Author: Hauck, Michael

Publisher: KIT Scientific Publishing

Published: 2014-02-11

Total Pages: 346

ISBN-13: 3731501384

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The software execution environment can play a crucial role when analyzing the performance of a software system. In this book, a novel approach for the automated detection of performance-relevant properties of the execution environment is presented. The properties are detected using predefined experiments and integrated into performance prediction tools. The approach is applied to experiments for detecting different CPU, OS, and virtualization properties, and validated in different case studies.


Evaluating Architectural Safeguards for Uncertain AI Black-Box Components

Evaluating Architectural Safeguards for Uncertain AI Black-Box Components

Author: Scheerer, Max

Publisher: KIT Scientific Publishing

Published: 2023-10-23

Total Pages: 472

ISBN-13: 373151320X

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Although tremendous progress has been made in Artificial Intelligence (AI), it entails new challenges. The growing complexity of learning tasks requires more complex AI components, which increasingly exhibit unreliable behaviour. In this book, we present a model-driven approach to model architectural safeguards for AI components and analyse their effect on the overall system reliability.