Comparing Techniques for Mobile Interaction with Objects from the Real World.

Mobile interaction with objects from the real world is gaining in popularity and importance as different mobile technologies increasingly provide the basis for the extraction and usage of information from physical objects. So far, Physical Mobile Interaction is used in rather simple ways. This paper presents a comparison and evaluation of more complex and sophisticated techniques for Physical Mobile Interaction. The results indicate the importance of usability guidelines that pay attention to these new interaction techniques

Supporting Mobile Service Usage through Physical Mobile Interaction

Although mobile services can be used ubiquitously, their employment and the interaction with them are still restricted by the constraints of mobile devices. In order to facilitate and leverage mobile interaction with services, we present a generic framework that combines Semantic Web Service technology and Physical Mobile Interaction. This interaction paradigm uses mobile devices to extract information from augmented physical objects and use it for a more intuitive and convenient invocation of associated services. For that purpose, the presented framework exploits Web Service descriptions for the automatic and dynamic generation of customizable user interfaces that support and facilitate Physical Mobile Interaction. This generic approach to mobile interaction with services through the interaction with physical objects promises to meet the complementary development of the Internet of Things. A user study with a prototype application for mobile ticketing confirms our concept and shows its limits

Supporting Mobile Service Interaction through Semantic Service Description Annotation and Automatic Interface Generation.

One of the current challenges in Mobile Computing is bringing services directly to mobile users, which is handicapped by two major hurdles: Phones and services do not interoperate as smoothly as they should and the delivered services have to be adapted to a wide range of different mobile client platforms. In order to address these problems we present a service framework that extends Semantic Web Service descriptions with abstract interface annotations and uses them for the automatic generation of adapted user interfaces. These interfaces support and facilitate the mobile interaction with physical objects and thus the interaction with associated Semantic Web Services. The focus of this paper lies on the service description annotations based on OWL-S. Furthermore we show how these extensions can be used for the generation of a compact and abstract interface description as the basis for the rendering of Java ME and XHTML-based interfaces. In order to motivate our approach and confirm its concept, we developed two prototypes for mobile ticketing that are based on the presented system

Mobile Interaction with Web Services through Associated Real World Objects.

The proposed demonstration is based on the work performed in the PERCI project and presents a generic framework to access and interact with Web Services through mobile interaction with real world objects. The demonstration will put a focus on the front-end of the framework that comprises augmented posters for mobile ticketing as well as a mobile client application for the interaction with associated services. By supporting Physical Mobile Interaction techniques such as Touching or Pointing, the framework tries to make mobile service interaction more intuitive and shift its focus from the menus of mobile devices to augmented physical objects

Policy Based Adaptive Services for Mobile Commerce

In this paper we describe a novel adaptation architecture as well as a process for the development of policy based adaptive services for mobile commerce. Our architecture is based on three basic requirements and defines the four core elements: context, policies, policy decision point and policy enforcement point. The proposed approach is based on the reuse and adaptation of existing and matured standards, APIs and middleware for representing context information, usage of policies for reasoning and for the communication between the involved parties. Our aim is to present a simple architecture taking as much as possible available work and software into account to support the rapid development of context aware mobile services. Furthermore we present a novel methodology for the definition of context information and policies that is supported by a new UML based diagram and a module pipeline. We show the feasibility of the architecture as well as of the process based on a prototype which implements a typical scenario for an adaptive mobile service