Multimodal interfaces offer ever-changing tasks and challenges for designers to accommodate newer technologies, and as these technologies become more accessible, newer application scenarios emerge. Prototype development and user evaluation are important steps in the creation of solutions to these challenges. Furthermore, playful interactions and games are shown to be important settings to study social signals of interaction people. Research in multimodal analysis brings together people with diverse skills and specializations on the integration of tools in different modalities, to collect and annotate data, and to exchange ideas and skills, and this special issue is a reflection of that collective effort.

多模式接口为设计师提供了不断变化的任务和挑战，以使其适应新技术，并且随着这些技术变得更加易于访问，新的应用场景也应运而生。原型开发和用户评估是创建针对这些挑战的解决方案的重要步骤。此外，有趣的互动和游戏被证明是研究互动人物社交信号的重要环境。多模式分析研究使具有各种技能和专长的人们聚集在一起，以各种不同的方式集成工具，收集和注释数据以及交换思想和技能，这一特殊问题反映了这种集体努力。