User-centered design (UCD) facilitates the creation of technologies that are specifically designed to answer users’ needs. This paper presents the first step of a UCD using a persona, a fictitious character representing the targeted population, which in this case is people having sustained a traumatic brain injury (TBI). The persona is used to better understand the possible interactions of a TBI population with a prototype of a technology that we wish to develop, namely the Cognitive Orthosis for coOKing (COOK). COOK is meant to be an assistive technology that will be designed to promote independence for cooking within a supported-living residence. More specifically, this paper presents the persona’s creation methodology based on the first four phases of the persona’s lifecycle. It also describes how the persona methodology served as a facilitator to initiate an interdisciplinary collaboration between a clinical team and a computer science team. Creation of personas relied on a clinical model (Disability Creation Process) that contextualized the needs of this population and an evaluation tool [Instrumental Activities of Daily Living (IADL) Profile] that presented a wide range of cognitive assistance needs found in this same population. This paper provides an in-depth description of some of the most frequent everyday difficulties experienced by individuals with TBI as well as the persona’s abilities, limitations and social participation during the realization of IADL, and an evaluation of the manifestations of these difficulties during IADL performance as represented through scenarios. The interdisciplinary team used the persona to complete a first description of the interactions of a persona with TBI with COOK. This work is an attempt at offering a communication tool, the persona, to facilitate interdisciplinary research among diverse disciplines who wish to learn to develop a common language, models and methodologies at the beginning of the design process.

中文翻译：

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使用角色支持创伤性脑损伤膳食准备辅助技术的跨学科设计

以用户为中心的设计 (UCD) 有助于创建专门为满足用户需求而设计的技术。本文介绍了使用角色的 UCD 的第一步，角色是代表目标人群的虚构角色，在这种情况下是遭受创伤性脑损伤 (TBI) 的人。该角色用于更好地了解 TBI 人群与我们希望开发的技术原型的可能交互，即烹饪认知矫形器 (COOK)。COOK 旨在成为一种辅助技术，旨在促进在支持生活的住宅内做饭的独立性。更具体地说，本文介绍了基于角色生命周期的前四个阶段的角色创建方法。它还描述了角色模型方法如何作为促进者在临床团队和计算机科学团队之间发起跨学科合作。角色的创建依赖于将这一人群的需求置于情境中的临床模型（残疾创建过程）和一个评估工具 [日常生活工具活动 (IADL) 概况]，该工具展示了在同一人群中发现的广泛的认知援助需求。本文深入描述了 TBI 个体在实现 IADL 过程中遇到的一些最常见的日常困难以及角色在 IADL 实现过程中的能力、局限性和社会参与，并评估了这些困难在 IADL 执行过程中的表现如通过场景所代表的那样。跨学科团队使用角色来完成对角色与 TBI 和 COOK 交互的第一次描述。这项工作试图提供一种交流工具，即角色，以促进希望在设计过程开始时学习开发通用语言、模型和方法的不同学科之间的跨学科研究。