Peter Tandler

• Dr.
• Consultant at IKU_Die Dialoggestalter

Inszenierte Digitale Moderation unterstützt wertschätzende Partizipation. Sie ermöglicht auch sehr großen und über verschiedene Standorte verteilten Gruppen den Einsatz und Erfolg bewährter Moderationstechniken. Sowohl die Aktivierung der Teilnehmer durch Interaktion als auch die inhaltliche Einbindung der Teilnehmer wird ermöglicht, die ohne Digit...

Die klassische Moderation ist für Gruppen entwickelt worden, die sich „Face-to-Face“ sehen und miteinander arbeiten. Was aber, wenn die Gruppe sehr groß wird und das „analoge“ Zusammentragen der einzel-nen Beiträge den zeitlichen Rahmen sprengt? Was ist mit verteilt arbei-tenden Teams, die sich aufgrund der räumlichen Distanz nur selten von Angesic...

Meetings are an important form of interaction in business settings. However, meetings are often not held in a way that makes all participants feel engaged. Meeting support systems try to overcome this obstacle by helping meeting participants in the meeting workflow. This paper takes a complementary approach by distinguishing between different persp...

The paper presents a collaboration platform with model-based configurable services. It is a part of a more general approach developed by the EU project MAPPER that enables distributed collaboration over adaptive knowledge-intensive engineering processes. In a model-configured infrastructure, active knowledge models (AKMs) of products and processes...

In einer Zeit, in der schnelle Entscheidungen, Wirtschaftlichkeit und moderne Kommunikationsmedien zunehmend den Alltag bestimmen, stehen viele Unternehmen vor der Herausforderung, vorhandenes Wissen effizient als Wettbewerbsfaktor zu nutzen. Verteiltes Expertenwissen und Kompetenzen verschiedener Unternehmensbereiche müssen schnell ausgetauscht we...

The increasing availability of mobile devices in today’s business contexts raises the demand to shift the focus of groupware framework design. Instead of solely focusing on functional requirements of specific application domains or device characteristics, nonfunctional requirements need to be taken into account as well. Flexibility concerning the i...

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The increasing availability of mobile devices in today's business contexts raises the demand to shift the focus of groupware framework design. Instead of solely focusing on functional requirements of specific application domains or device characteristics, nonfunctional requirements need to be taken into account as well. Flexibility concerning the i...

Ubiquitous computing environments offer a wide range of devices in many different shapes and sizes, creating new possibilities for interaction. In the context of meetings and teamwork situations, it is desirable to take advantage of their different properties for synchronous collaboration. Besides providing an adapted user interface, this requires...

Computer technology has evolved to a stage where it is available everywhere and every time - even in meetings. The pattern language presented in this paper sheds light on how to make use of technology when preparing and conducting a meeting. We collected advice both on social practices of good meetings as well as on implications for technology supp...

There is currently little reuse of either design or code in the development of collaborative applications. Though there are some application frameworks for this domain, they tend to be rather inflexible in the functionality they offer. This paper seeks to provide design reuse in the form of architectural patterns that focus on low-level horizontal...

Today there exist many frameworks for the development of synchronous groupware applications. Although the domain of these applications is very heterogeneous, existing frameworks provide only limited flexibility to integrate diverse groupware applications in a meaningful way. We identify five variation points that a groupware framework needs to offe...

Many ubiquitous computing scenarios deal with cooperative work situations. To successfully support these situations, computer-supported co-operative work (CSCW) concepts and technologies face new challenges. One of the most fundamental concepts for cooperation is sharing. By analyzing applications of sharing in the context of ubiquitous computing i...

We develop a comprehensive approach to the design of information and collaboration environments that support human activities by starting in the real world. Our goal is to design environments that combine the affordances of real objects with potential computer-based support in the virtual world. This combination generates hybrid worlds that have si...

Ubiquitous computing environments offer a wide range of devices in many different shapes and sizes, creating new possibilities for interaction. In the context of meetings and teamwork situations, it is desirable to take advantage of their different properties for synchronous collaboration. Besides providing an adapted user interface, this requires...

Playing games has always been a joint activity. New hardware de-velopments such as multi-user touch-sensitive tabletop surfaces offer new pos-sibilities to support games with information technology. This paper analyzes the properties of games that are relevant for choosing an appropriate hardware setup, e.g. the need for public or personal data for...

In this paper, a conceptual model for synchronous applications in ubiquitous computing environments is proposed. To test its applicability, it was used to structure the architecture of the BEACH software framework that is the basis for the software infrastructure of i-LAND (the ubiquitous computing environment at FhG-IPSI). The BEACH framework prov...

Drag-and-pop and drag-and-pick are interaction techniques designed for users of pen- and touchoperated display systems. They provide users with access to screen content that would otherwise be impossible or hard to reach, e.g., because it is located behind a bezel or far away from the user. Drag-and-pop is an extension of traditional drag-and-drop....

Introduction In contrast to the widely accepted availability of computer support in today's work environments, the productivity of face-to-face collaboration has not yet significantly improved from the days of conventional group work. Instead, during face-to-face collaboration, information technology is usually abandoned in favor of traditional med...

Drag-and-pop and drag-and-pick are interaction techniques designed for users of pen- and touchoperated display systems. They provide users with access to screen content that would otherwise be impossible or hard to reach, e.g., because it is located behind a bezel or far away from the user. Drag-and-pop is an extension of traditional drag-and-drop....

This paper presents an analysis of the different kinds of traditional tables that exist in an office environment. The tables' relation to the range of activities that they afford and support are discussed. Concluding from this, design issues for interactive tables and their corresponding software are brought up together with examples from the body...

digitalinformation as a major part of everydaywork. The desktop computer as a device isubiquitously present in every office.This idea was further pursued by Mark Weiser,who coined the term ubiquitous computing.2We interpret this view as the design goal of atwo-way augmentation and smooth transitionbetween real and virtual worlds. Combiningreal and...

This paper addresses the realization of a text entry system for walls and mobile devices as well as further services that may become available when the handheld also serves as an authentication device

ContextWall is a Single Display Groupware system based on the focus plus context screen architecture. The display consists of multiple high-resolution computer screens that are seamlessly embedded into a larger projected display. ContextWall supports three different collaboration styles. First, the embedded hi-res displays allow users to use the sy...

In this paper, we describe our 'Formal Demonstration Presentation' and provide background information on the video published in the video proceedings. The presentation provides an account of the development of the second generation of roomware© components based on our experiences with the first generation. The redesign, resp. new design and impleme...

There is a growing research interest in enhancing and augmenting the interaction with large, stationary displays. One promising approach is to utilize mobile devices that offer richer interaction capabilities than an interactive display. This paper addresses the realization of a text entry system for walls and mobile devices as well as further serv...

In ubiquitous computing environments, multiple users work with a wide range of different devices. In many cases, users interact and collaborate using multiple heterogeneous devices at the same time. The configuration of the devices should be able to change frequently due to a highly dynamic, flexible and mobile nature of new work practices. This pr...

We present the ConnecTable, a new mobile, networked and context-aware information appliance that provides affordances for pen-based individual and cooperative work as well as for the seamless transition between the two. In order to dynamically enlarge an interaction area for the purpose of shared use, a flexible coupling of displays has been realiz...

As recognition of pen gestures tends to be ambiguous and error-prone, it is essential that users get feedback about recognized shapes as early as possible. This is especially important in modeless user interfaces with no separate modes for writing and gesturing. In this paper, we propose to give feedback continuously while users draw, as this allow...

Shared environments beyond the desktop supporting face-to-face collaboration put new requirements on software: Users interact with multiple devices, and collaborate using different kinds of devices. The configuration of the devices is changing frequently due to the demands of new work practices in organizations which will be characterized by a high...

This paper proposes to separate clearly models for documents, user interface, tools, physical environment, and interaction to gain flexibility in adapting and extending these different aspects independently. In addition, a core model providing a shared-object space and multiuser event handling eases the development of applications supporting synchr...

We present the ConnecTable, a new mobile, networked and context-aware information appliance that provides affordances for pen-based individual and cooperative work as well as for the seamless transition between the two. In order to dynamically enlarge an interaction area for the purpose of shared use, a flexible coupling of displays has been realiz...

In the past, a central mainframe computer provided terminals for many users. In the current age of the personal desktop computer, there is one computer for one person. Observation of early adopters and predictions about the future point to an era where each person will have multiple devices and computational power will be ubiquitous. Against this b...

We describe the i-LAND environment which constitutes an example of our vision of the workspaces of the future, in this case supporting cooperative work of dynamic teams with changing needs. i-LAND requires and provides new forms of human-computer interaction and new forms of computer-supported cooperative work. Its design is based on an integration...

Many object-oriented toolkits and frameworks for groupware development provide shared objects as a basic service. This relieves developers of a lot of problems originating from the field of distributed systems. However, there is little support on how to use shared objects to actually build collaborative applications. In this paper we propose an obj...