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Choi, Young Mi

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    Variability of User Evaluations Based on Design Representation
    (Georgia Institute of Technology, 2014-10-23) Choi, Young Mi
    A critical component in the development of new products is the inclusion of input from future users. This input is invaluable in defining and understanding the technical/functional needs that the product must fulfill. It also serves as a guide to other important attributes such as usability, satisfaction or acceptability. Though almost all product development methodologies call for user input and utilize it in various ways within the design process, the accuracy of this input to guide design decisions is not well defined. This presentation will share the results of an investigation into the accuracy of user input when it is provided based on different representations of a design (such as sketches, renderings or models) that are commonly available at various stages of the design process. A better understanding of this input will allow designers base design decisions on the components of it that are most likely to accurately represent users’ opinion of a finished product.
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    The impact of input during the design of an assistive technology product
    (Georgia Institute of Technology, 2010-01-11) Choi, Young Mi
    The design of Assistive Technology (AT) products that are highly functional as well satisfactory is presents many challenges. Various types of input are used in design of AT products to help overcome them. A study was conducted to gather data on the impact that different types of input (from simulation tools, a professional therapist, and end users) during the design of an AT product has on the effectiveness, efficiency and satisfaction of the final design. The results show that input from stakeholders (end users or a therapist) can be very effective. However, effectiveness of the input is influenced by many factors and its impact on the design can be highly variable. Input from simulation tools was also found to be equally effective. Implications of these findings for the process of designing AT products are discussed.
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    The When of user engagement
    (Georgia Institute of Technology, 2006) Choi, Young Mi ; Sprigle, Stephen
    One of the most important components in the design of new products is the inclusion of input from the end users and a large body of literature exists that describes how to identify and engage relevant stakeholders. Many design tools and methodologies such as concurrent engineering (McGrath, Anthony et al. 1992) or quality function deployment (Griffin and Hauser 1993) identify consumer or user input as imporant, but there is surprisingly little guidance on precicely when it should be collected. The objective of this poster was to demonstrate how the design structure matrix (DSM) can be used to identify when to collect user input to aid in the development of better assistive technology (AT) devices.