To create successful interactive systems, user interface designers need to cooperate with developers and application domain experts in an interdisciplinary team. These groups, however, usually miss a common terminology exchange ideas, opinions, values.This paper presents approach that uses pattern languages capture this knowledge software development, HCI, the domain. A formal, domain-independent definition of design patterns allows for computer support without sacrificing readability, use...

We show how modern mobile phones (Weiser's tabs) can interact with their environment, especially large situated displays boards). Smart phones' emerging capabilities are fueling a rise in the use of as input devices to such resources displays, vending machines, and home appliances. Mobile prevalence gives them great potential be default physical interface for ubiquitous computing applications. survey interaction techniques that environments. smart phone describe an enhanced phone. Our...

The iStuff toolkit of physical devices, and the flexible software infrastructure to support it, were designed simplify exploration novel interaction techniques in post-desktop era multiple users, systems applications collaborating an interactive environment. leverages existing workspace in-frastructure, making it lightweight platform independent. supporting framework includes a dynamically configurable intermediary mapping devices applications. We describe architecture provide several...

We present Silicone iLluminated Active Peripherals (SLAP), a system of tangible, translucent widgets for use on multitouch tabletops. SLAP Widgets are cast from silicone or made acrylic, and include sliders, knobs, keyboards, buttons. They add tactile feedback to multi-touch tables, improving input accuracy. Using rear projection, can be relabeled dynamically, providing inexpensive, battery-free, untethered augmentations. Furthermore, combines the flexibility virtual objects with physical...

While learning new motor skills, we often rely on feedback from a trainer. Auditive and demonstrations are used most frequently, but in many domains they inappropriate or impractical. We introduce tactile instructions as an alternative to assist correcting wrong posture during physical activities, present set of full-body vibrotactile patterns. An initial study informed the design our patterns, determined appropriate locations for body. A second experiment showed that users perceived...

We present Pinstripe, a textile user interface element for eyes-free, continuous value input on smart garments that uses pinching and rolling piece of cloth between your fingers. The granularity can be controlled in natural way by varying the amount pinched. Pinstripe elements physically consist fields parallel conductive lines sewn onto fabric. This way, they invisible, included across large areas garment. also addresses several problems previously identified placement operation UI...

We introduce FingerFlux, an output technique to generate near-surface haptic feedback on interactive tabletops. Our system combines electromagnetic actuation with permanent magnets attached the user's hand. FingerFlux lets users feel interface before touching, and can create both attracting repelling forces. This enables applications such as reducing drifting, adding physical constraints virtual controls, guiding user without visual output. show that vibration patterns up 35 mm above our...

E-Textiles are fabrics that integrate electronic circuits and components. Makers use them to create interactive clothing, furniture, toys. However, this requires significant manual labor skills, using technology-centric design tools. We introduce Sketch&Stitch, an embroidery system e-textiles a traditional crafting approach: Users draw their art circuit directly on fabric colored pens. The takes picture of the sketch, converts it patterns, sends machine. Alternating between sketching...

We present a system for the actuation of tangible magnetic widgets (Madgets) on interactive tabletops. Our combines electromagnetic with fiber optic tracking to move and operate physical controls. The presented mechanism supports actuating complex tangibles that consist multiple parts. A grid optical fibers transmits marker positions past our hardware cameras below table. introduce visual algorithm is able detect objects touches from strongly sub-sampled video input grid. Six sample Madgets...

We introduce MudPad, a system capable of localized active haptic feedback on multitouch screens. use an array electromagnets combined with overlay containing magnetorheological (MR) fluid to actuate tablet-sized area. As MudPad has very low reaction time it is able produce instant multi-point for input, ranging from static levels surface softness broad set dynamically changeable textures. Our does not only convey global confirmative user input but allows the UI designer enrich entire...

We introduce Springlets, expressive, non-vibrating mechanotactile interfaces on the skin. Embedded with shape memory alloy springs, we implement Springlets as thin and flexible stickers to be worn various body locations, thanks their silent operation even neck head. present a technically simple rapid technique for fabricating wide range of Springlet computer-generated tactile patterns. developed six primitives: pinching, directional stretching, pressing, pulling, dragging, expanding. A study...

REXplorer is a mobile, pervasive spell-casting game designed for tourists of Regensburg, Germany. The uses location sensing to create player encounters with spirits (historical figures) that are associated historical buildings in an urban setting. A novel mobile interaction mechanism "casting spell" (making gesture by waving phone through the air) allows awaken and communicate spirit continue playing game. make learning history fun young (and at heart) influence their path city.

Elderly users suffering from hand tremor have difficulties interacting with touchscreens because of finger oscillation. It has been previously observed that sliding one's across the screen may help reduce this In work, we empirically confirm advantage by (1) measuring oscillation during different actions and (2) comparing error rate user satisfaction between traditional tapping swabbing in which slides his towards a target on edge to select it. We found is generally reduced sliding. Also,...

We present an experimental comparison of tangible rotary knobs and touch-based virtual in three output conditions: eyes-on, eyes-free, peripheral. Twenty participants completed a simple rotation task on interactive surface with four different input techniques (two tangibles two touch widgets) the conditions, representing distance from locus attention. found that users were average 20% faster using than knobs. retains performance even if they are not attention users. provide recommendations...

Modeling in Augmented Reality (AR) lets users create and manipulate virtual objects mid-air that are aligned to their real environment. We present ARPen, a bimanual input technique for AR modeling combines standard smartphone with 3D-printed pen. Users sketch the pen mid-air, while holding other hand see traces live camera image. ARPen pen's higher 3D precision rich interactive capabilities of touchscreen. studied subjective preferences this technique, such as how people hold drawing,...

column Otherware: how to best interact with autonomous systems Share on Authors: Marc Hassenzahl University of Siegen SiegenView Profile , Jan Borchers RWTH Aachen UniversityView Susanne Boll Oldenburg OldenburgView Astrid Rosenthal-von der Pütten Volker Wulf Authors Info & Affiliations InteractionsVolume 28Issue 1January - February 2021 pp 54–57https://doi.org/10.1145/3436942Published:23 December 2020 3citation1,392DownloadsMetricsTotal Citations3Total Downloads1,392Last 12 Months1,392Last...

Dark patterns are malicious UI design strategies that nudge users towards decisions going against their best interests. To create technical countermeasures them, dark must be automatically detectable. While researchers have devised algorithms to detect some automatically, there has only been little work use obtained results technically counter the effects of when face them on devices.

We present DRAGON, a direct manipulation interaction technique for frame-accurate navigation in video scenes. This benefits tasks such as professional and amateur editing, review of sports footage, forensic analysis By directly dragging objects the scene along their movement trajectory, DRAGON enables users to quickly precisely navigate specific point timeline where an object interest is desired location. Examples include frame sprinter crosses finish line, or car passes traffic light....

Capacitive multi-touch displays are not designed to detect passive objects placed on them-in fact, these systems usually contain filters actively reject such touch data. We present a technical analysis of this problem and introduce Passive Untouched Widgets (PUCs). Unlike previous approaches, PUCs do require power, they can be made entirely transparent, detected reliably even when no user is touching them, internal electrical or software modifications the display its driver. show results...

We present BendDesk, a hybrid interactive desk system that combines horizontal and vertical surface via curve. The provides seamless touch input across its entire area. explain scalable algorithms provide graphical output multi-touch on curved surface. In three tasks we investigate the performance of dragging gestures curve, as well virtual aiming at targets. Our main findings are: 1) Dragging curve is significantly slower than flat surfaces. 2) smaller entrance angle when longer average...

Touch-sensitive fabrics let users operate wearable devices unobtrusively and with rich input gestures similar to those on modern smartphones tablets. While hardware prototypes exist in the DIY crafting community, HCI designers researchers have little data about how well these actually work realistic situations. FabriTouch is first flexible touch-sensitive fabric that provides such scientifically validated information. We show placing a pad onto clothing body instead of rigid support surface...

When people hold their smartphone in landscape orientation, they use thumbs for input on the frontal touchscreen, while remaining fingers rest back of device (BoD) to stabilize grip. We present BackXPress, a new interaction technique that lets users create BoD pressure with these augment touchscreen front: Users can apply various levels each enter different temporary "quasi-modes" are only active as long is applied. Both then interact screen mode. illustrate practicality BackXPress several...