User interaction in a web application can be regarded as a flow of questionanswering “acts”. From a communication perspective, the selection of a link can be represented as the operational counterpart of a question that the user “asks” to herself, and to the system (e.g., “who is the director of this movie?”). The effect of link selection, i.e., the display of the link destination page, can be regarded as the system’s (or designer’s) answer, i.e., the information that better responds to the user’s question. This idea of looking at a web application as a “dialogue generator” is the core concept underlying the IDM model. IDM, standing for Interactive Dialogue Model, is inspired by previous hypermedia design models such as HDM, HDM+, HDM2, and W2000, and by linguistic theories and practices, from which it partially derives concepts and terms. IDM is specifically tailored to the design of content-intensive, multichannel web applications, i.e., web enabled systems that deliver the “same” content and a “similar interactive experience” using different devices and different technologies (e.g. stationary PCs, palm held devices, car navigators, mobile phones, or interactive TVs). Beside the inguistic approach and the emphasis on multi-channel fruition, IDM has additional distinctive features. It is lightweight, providing a small set of primitives (and a simple graphic notation) which are easy to learn and to teach. Moreover, it is suitable for brainstorming and generating ideas at the early stage of design (or during the shift from requirements to design); finally, it has proved to be costeffective (it requires little effort to be used efficiently on behalf of designers).
Designing Multichannel Web Applications as “Dialogue Systems”: the Idm Model
BOLCHINI, DAVIDE PIETRO;GARZOTTO, FRANCA
2007-01-01
Abstract
User interaction in a web application can be regarded as a flow of questionanswering “acts”. From a communication perspective, the selection of a link can be represented as the operational counterpart of a question that the user “asks” to herself, and to the system (e.g., “who is the director of this movie?”). The effect of link selection, i.e., the display of the link destination page, can be regarded as the system’s (or designer’s) answer, i.e., the information that better responds to the user’s question. This idea of looking at a web application as a “dialogue generator” is the core concept underlying the IDM model. IDM, standing for Interactive Dialogue Model, is inspired by previous hypermedia design models such as HDM, HDM+, HDM2, and W2000, and by linguistic theories and practices, from which it partially derives concepts and terms. IDM is specifically tailored to the design of content-intensive, multichannel web applications, i.e., web enabled systems that deliver the “same” content and a “similar interactive experience” using different devices and different technologies (e.g. stationary PCs, palm held devices, car navigators, mobile phones, or interactive TVs). Beside the inguistic approach and the emphasis on multi-channel fruition, IDM has additional distinctive features. It is lightweight, providing a small set of primitives (and a simple graphic notation) which are easy to learn and to teach. Moreover, it is suitable for brainstorming and generating ideas at the early stage of design (or during the shift from requirements to design); finally, it has proved to be costeffective (it requires little effort to be used efficiently on behalf of designers).I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
