Quality Engineering: Quality of Communication Technology Systems

Description

Der Begriff der Qualität und der Gebrauchstauglichkeit hat in der Informations- und Kommunikationstechnik sowie der Informatik eine herausragende Bedeutung. Der Autor führt in diese Thematik ein, indem er zunächst die Fachbegriffe und die Grundlagen der Psychophysik und Psychometrie erläutert. Darauf aufbauend wird der Kreislauf einer menschenorientierten Systementwicklung vorgestellt. Die Messung und Vorhersage von Qualität und Gebrauchstauglichkeit wird anhand von Beispielen veranschaulicht, u. a. für Sprach- und multimodale Dialogsysteme. Preface Preface to the 2nd edition Acknowledgments Contents 1: Motivation and Objectives, Quality and Usability 1.1 Motivation 1.2 Definitions 1.3 Perception and Assessment Processes 1.4 Taxonomy of Quality Aspects Bibliography 2: Basics of Psychophysics and Psychometrics 2.1 Properties of Measurements 2.2 Psychophysical Measurements 2.3 Measuring Quality and Usability 2.4 User Types 2.5 Psychometric Methods 2.6 Experimental Planning and Design Bibliography 3: Scaling 3.1 Scale Types 3.2 Ratio Scaling 3.3 Category Scaling 3.4 Category Ratio Scaling 3.5 Multidimensional Analysis 3.5.1 Similarity Assessment and Multidimensional Scaling 3.5.2 Semantic Differential and Principal Component Analysis 3.5.3 Preference Mapping 3.6 Evaluation of Scaled Measurement Results Bibliography 4: Usability Engineering 4.1 Usability Engineering Lifecycle 4.2 Analysis 4.3 Design 4.4 Prototyping 4.5 Expert Evaluation 4.6 Empirical Testing 4.7 Iterative Design 4.8 Feedback from the Field 4.9 Summary Bibliography 5: Quality of Voice and Audio Transmission Systems 5.1 Quality Elements of Voice Transmission Systems 5.2 Quality Features of Voice Transmission Systems 5.3 Basic Information on the Measurement of Speech Quality 5.4 Comprehensibility Tests 5.5 Measurement of Speech Quality in the Listening Test 5.6 Measurement of Audio Quality in the Listening Test 5.7 Multidimensional Analysis 5.8 Conversation Tests 5.9 Standards Bibliography 6: Quality of Video Transmission Systems 6.1 Quality Elements of Video Transmission Systems 6.2 Quality Characteristics of Video Transmission Systems 6.3 Basic Information on Measuring Video Quality 6.4 Evaluation of Visual Sequences 6.5 Evaluation of Audiovisual Sequences 6.6 Conversation Attempts 6.7 Standards Bibliography 7: Quality of Spoken Dialog Systems 7.1 Quality Elements of Spoken Dialog Systems 7.2 Quality Features of Spoken Dialog Systems 7.3 Overview 7.4 Performance of the System Components 7.4.1 Speech Recognition 7.4.2 Speech Understanding 7.4.3 Dialog Management 7.4.4 Speech Output 7.5 Quality Measurement of Overall Systems 7.5.1 Annotation of Interactions 7.5.2 Measurement of Interaction Parameters 7.5.3 Quality Measurement by Means of Questionnaires 7.5.4 Wizard-of-Oz Tests 7.6 Standards Bibliography 8: Quality of Multimodal Systems 8.1 Quality Elements of Multimodal Dialog Systems 8.2 Determining the Performance of Multimodal System Components 8.3 Quality Measurement in Multimodal Dialogue Systems 8.4 Measurement of Other Quality Aspects Bibliography 9: Quality Prediction 9.1 Models for Predicting Speech Transmission Quality 9.1.1 Model Types 9.1.2 Signal-Based Comparison Measures 9.1.3 Parametric Models 9.1.4 Quality Monitoring 9.1.5 Prediction of Speech Intelligibility 9.2 Models for Predicting Video Transmission Quality 9.2.1 Signal-Based Models 9.2.2 Parametric Models 9.3 Models for Predicting Interaction Quality 9.3.1 Regression Models 9.3.2 Simulation of User Behavior 9.4 Summary and Outlook Bibliography Index