Abstract: Product recommendations are selected according to a model. Product recommendations may be annotated with rules of the model used to select the products. A user may modify the model and be provided with a URL and a cookie associated with the modified model. Subsequent requests or the URL and presenting the cookie are processed using the modified model. A context may be associated with the cookie and modified by the user to observe performance of the model for the context. An interface may permit a user to specify rules for the model or otherwise model its behavior. User interactions with a website result in recommendations according to the model. A journey is recorded that records content, recommendations, and parameters of the model corresponding to the recommendations. The journeys of users may be filtered and visually presented to a user.

Abstract: An electronic controller (10) having one or two rotational position detectors (48), a tilt/shake sensor (50), and optional press controls (18). A user may rotate control knobs (14) causing the position detectors (48) to create rotation signals (80) from which the amount of rotation can be resolved and the direction of rotation detected. Tilting or shaking of the electronic controller (10) causes the tilt/shake sensor (50) to create a tilt/shake signal (84), and pressing (or releasing) the press controls (18) can create press signals (82). A processor system (46) processes and integrates all of these signals (80, 82, 84) into a data signal (86) which is communicated over a communications interface (16) to a computerized device or system employing the electronic controller (10) as an input device or system.