Presenting large amount of Multivariate Data is not a simple problem. When there are multiple correlated variables involved, it becomes difficult to comprehend data using traditional ways. Information Visualization techniques provide an interactive way to present and analyze such data. This thesis has been carried out at ABB Corporate Research, Västerås, Sweden. Use of Parallel Coordinates and Multiple Coordinated Views was has been suggested to realize interactive reporting and trending of Multivariate Data for ABB’s Network Manager SCADA system. A prototype was developed and an empirical study was conducted to evaluate the suggested design and test it for usability from an actual industry perspective. With the help of this prototype and the evaluations carried out, we are able to achieve stronger results regarding the effectiveness and efficiency of the visualization techniques used. The results confirm that such interfaces are more effective, efficient and intuitive for filtering and analyzing Multivariate Data.

Diese Arbeit untersucht wie man mit mehreren, miteinander koordinierten Mobilgeräten Selektionen verwalten und Brushing und Linking unterstützen kann. Im Rahmen der Arbeit wird ein konzeptionelles Framework zur Selektionsverwaltung für mehrere Geräte angedacht und ein Konzept zur Selektionsverwaltung vorstellt, das Brushing und Linking für Mobilgeräte unterstützt. Des Weiteren werden Ziele für den Prototypen erörtert, die zur Umsetzung das Konzept beitragen. Mobile Geräte werden immer häufiger für Informationsvisualisierungen verwendet. Jedoch wurde bisher noch nicht untersucht, wie gängige Interaktionstechniken, wie Brushing und Linking, für diese Geräte anpassen werden müssen. Während des Brushings, werden zusätzlich Selektionen erstellt, für die es bislang keine Art der Verwaltung für Mobilgeräte gibt. In dieser Arbeit wird untersucht wie man Brushing und Linking mit mehreren Mobilgeräten unterstützen kann und Selektionen gleichzeitig verwalten kann.:1 Introduction 1.1 Contributions 1.2 Motivation and Background 1.3 Goals 1.4 Research Questions 1.5 Thesis Overview 2. Related Work 2.1 Mobile Devices for InfoVis and Their Screen Real Estate Issues 2.2 Interacting with CMVs 2.3 Brushing and Linking 2.4 Summary 3 Selection Management and Brushing and Linking for Mobile Cross- Device Interaction 3.1 The Selection Management Framework 3.2 Fundamental Information About VisTiles 3.3 Design Considerations 3.4 Creating Selections Within a Visualization 3.5 Interacting with Selections Within a Visualization 3.6 Managing Multiple Selections 3.7 Managing a Single Selection 3.8 Linking Selections to Other Devices 3.9 Incorporating Join Operations 3.10 Overview over Side-by-side Interactions 3.11 Summary: Reviewing the Selection Management Framework 4 Prototype 4.1 Technical Setup 4.2 Techniques 5 Conclusion and Discussion 5.1 Discussion 5.2 Future Work 5.3 Conclusion / This thesis examines how to manage selections and use brushing and linking with multiple coordinated mobile devices. We discuss thoughts for a conceptual framework for selection management in multi-device environments. We then present a concept for managing selections and supporting brushing and linking for co-located mobile devices. Finally, we are providing an overview of and the goals for our proof-of-concept prototype. More and more mobile devices are used for visualization. However, it is still an open question how to adjust common interaction techniques, such as brushing and linking, for mobile devices. Furthermore, it has not been addressed how to manage the selections that are created through brushing. We explore how brushing and linking can be used in a setting with multiple, co-located mobile devices and how to manage its selections.:1 Introduction 1.1 Contributions 1.2 Motivation and Background 1.3 Goals 1.4 Research Questions 1.5 Thesis Overview 2. Related Work 2.1 Mobile Devices for InfoVis and Their Screen Real Estate Issues 2.2 Interacting with CMVs 2.3 Brushing and Linking 2.4 Summary 3 Selection Management and Brushing and Linking for Mobile Cross- Device Interaction 3.1 The Selection Management Framework 3.2 Fundamental Information About VisTiles 3.3 Design Considerations 3.4 Creating Selections Within a Visualization 3.5 Interacting with Selections Within a Visualization 3.6 Managing Multiple Selections 3.7 Managing a Single Selection 3.8 Linking Selections to Other Devices 3.9 Incorporating Join Operations 3.10 Overview over Side-by-side Interactions 3.11 Summary: Reviewing the Selection Management Framework 4 Prototype 4.1 Technical Setup 4.2 Techniques 5 Conclusion and Discussion 5.1 Discussion 5.2 Future Work 5.3 Conclusion