團隊協作工具能協助使用者有效規範專案內容，手機版的團隊協作工具應考量用戶在團隊溝通過程中的使用性，且設計出符合使用者操作直覺的介面。本研究探討團隊協作工具的發展、使用性評估方法，以及智慧型手機的操作等理論；透過樣本收集、用戶訪談與情境故事法，進行三款手機版的團隊協作工具 - JANDI、asana與Slack的使用性評估。結果顯示操作JANDI時，完成任務的總時數較長(31分36秒)、asana其次(27分14秒)、Slack最短(19分42秒)。根據研究結果，本研究歸納出手機版團隊協作平台的操作形式與設計建議，作為設計師在介面規劃上的設計參考：(1)加入引導式說明介面；(2)加入專案進度/時程一覽表；(3)新增還原機制；(4)優化待辦事項介面；(5)提升介面切換的流暢度。

Team communication platforms can help users effectively standardize the content of the project. While designing the mobile version of the team communication platforms, designers should consider users’ need during the team communication process, and design the interface which meets users’ intuition. In this study, we conducted a usability testing through user interviews and scenario method, to evaluate the usability of JANDI, asana, and Slack. The results showed that when participants were operating JANDI, the among of time to complete the task was 31m36s, asana was 27m14s, and Slack was 19m42s. According to the results, we summarized the operation forms and design suggestions of the mobile version of the team communication platforms, for designers’ references in the interface design: (1) add onboarding; (2) add the project schedule / timeline; (3) add undo function; (4) optimize the interface of to-do list; (5) improve the smoothness when of switching interface.