Papers: Modeling user behaviors and activities adapted to use contexts

Usefulness Simulation of Design Concepts

[+] Author and Article Information
Alborz Bekhradi

Ecole Centrale Paris,
Laboratoire Genie Industriel,
Chatenay-Malabry 92290, France
e-mail: alborz.bekhradi@ecp.fr

Bernard Yannou

Ecole Centrale Paris,
Laboratoire Genie Industriel,
Chatenay-Malabry 92290, France
e-mail: bernard.yannou@ecp.fr

Romain Farel

Ecole Centrale Paris,
Laboratoire Genie Industriel,
Chatenay-Malabry 92290, France
e-mail: romain.farel@ecp.fr

Benjamin Zimmer

Silver Valley,
11, rue Pierre Rigaud,
Ivry-sur-Seine 94200, France
e-mail: benjamin.zimmer@silvervalley.fr

Jeya Chandra

Harold and Inge Marcus Department of Industrial
and Manufacturing Engineering,
Penn State University,
361 Leonhard Building,
University Park, PA 16802
e-mail: mjc3@engr.psu.edu

Contributed by the Design Automation Committee of ASME for publication in the JOURNAL OF MECHANICAL DESIGN. Manuscript received September 14, 2014; final manuscript received March 23, 2015; published online May 19, 2015. Assoc. Editor: Carolyn Seepersad.

J. Mech. Des 137(7), 071414 (Jul 01, 2015) (12 pages) Paper No: MD-14-1573; doi: 10.1115/1.4030180 History: Received September 14, 2014; Revised March 23, 2015; Online May 19, 2015

Usefulness, from the utilitarianism perspective, is the ability of a product or service to improve the well-being of humans and to minimize their suffering in different situations. In the case of the widespread issue of falls among the elderly, designing an adapted solution to is not an obvious task. The latter requires quantifying various usage scenarios. The usage scenarios, or segments, associated with elderly falls must be investigated to ensure that newly designed products and services are likely to bring essential health, social, and economic values. Optimizing a design solution by considering the coverage of such usage segments extends the classical methods of design for market approaches. Starting from a disparate literature on elderly falls’ issue, we have first built a usage scenarios space. Next, the usefulness and the coverage ability of three design solutions are evaluated over a tessellation of usage segments. In addition, the developed usage simulator is used to assess the potential of non or poorly covered usage segments to deliver insightful information in order to truly be a need seeker in the front-end of innovation.

Copyright © 2015 by ASME
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Fig. 1

Design solutions to prevent and alert elderly falls

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Fig. 2

Design by usage coverage framework described in Ref. [13]

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Fig. 4

Representation of performance on a usefulness scale

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Fig. 5

DFLE and TLE calculation for the case of falls among the elderly

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Fig. 3

Usage coverage methodology for the widespread issue of elderly falls

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Fig. 6

Identification of the usage coverage potential




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