No abstract

The boundary between tangible and digital products is getting more fused while rapidly evolving systems for interaction require novel processes that allow for rapidly developed designs, evaluations, and interaction strategies to facilitate efficient and unique user interactions with computer systems. Accordingly, the literature suggests combining creativity enhancement tools or methods with human-computer interaction (HCI) design. The TRIZ base of knowledge appears to be one of the viable options, as shown in the fragmental indications reported in well-acknowledged design textbooks. The goal of this paper is to present a systematic review of the literature to identify and analyze the published approaches and recommendations to support the synergy between HCI and TRIZ from the perspective of product innovation related to HCI, with the aim of providing a first comprehensive classification and discussing about observable differences and gaps. The method followed is the guidelines related to systematic literature review methods. As results, out of 444 initial results, only 17 studies reported the outcomes of the synergy between HCI and TRIZ. The 7 of these studies explored the feasibility of the combination of HCI and TRIZ. The 10 studies attempted to combine and derive approaches in these two fields, and the outcomes defined 3 different integration strategies between HCI and TRIZ. Some conclusions achieved are that the generic solutions to support the synergy between HCI and TRIZ are still rare in the literature. The extraction and combination of different tools caused the randomization of the evaluation criteria, and the performance of the proposals has not been comprehensively evaluated. However, the findings can help inform future developments and provide valuable information about the benefits and drawbacks of different approaches.

The border between tangible and digital products is getting more diffuse, which has caused the focus of product innovation to migrate from technology to user experience and Human-Computer Interaction (HCI). In HCI, the comprehensive interactions between users and products are collectively referred to as multimodal interaction, and multimodal interaction defines the user experience of the product. However, there is currently a lack of design methods for multimodal interaction. This paper presents a multimodal interaction design method by exploiting the synergy of HCI and TRIZ. This method covers the whole design process, from the analysis of the user needs to the generation of the design solutions and it contains tools as flexible as active, a more valid view on user experience is provided during all design stages. A case experiment validated the effectiveness of the method. The implications of this study will help designers to innovate products with multimodal interaction.