影音串流平台好用性評估：以Spotify、Last.fm、YouTube、Vimeo為例

Comparative Usability Study of Four Audio and Video Streaming Platforms: Spotify, Last.fm, YouTube, and Vimeo

使用影音串流平台已是人們日常休閒之一。此類平台提供哪些功能，操作流程如何設計，介面如何呈現，最直覺友善、便於使用？都是值得探究的議題，但國內外在這些方面研究卻不多。故本研究採取好用性研究方法，運用Spotify、Last.fm、YouTube及Vimeo四個影音串流平台，針對不同平台相同功能之操作方式進行評估，以期透過觀察、受測者回饋與資料分析，得知功能操作流程問題，瞭解使用者對好用平台之期待，提出改善建議，並建構一兼具效益、效率、滿意度與娛樂性之好用影音串流平台模型。

A variety of audio and video streaming platforms, equipped with streaming technology that supports instant usage of media resources in the process of downloading, have become a popular part of daily entertainments. Current researches on streaming platforms mostly focus on the technical dimension of streaming technology, with much less attention to the usability dimension of streaming operation. Nevertheless, issues concerning platform design and user-friendly operation are worthy of further exploration. This study selects four currently most popular audio and video streaming platforms as research subjects, including Spotify, Last.fm, YouTube, and Vimeo. To examine the usability of these platforms, 12 users were arranged to perform 16 tasks by alternatively applying streaming functions provided on the platforms. Their activities and self-report data are observed and analyzed. Research results indicate some drawbacks in streaming operations as well as users' expectation for streaming usability. Based on the research results, this study proposes some suggestions for improving streaming platform design, and furthermore configures a model of streaming platform that incorporates effective, efficient, enjoyable, and usable audio and video streaming services.