本研究分析現有有關應用電腦於改善ESL教學之理論，這些理論目前係為了提供較易懂與靈活的人機介面。本研究同時對於在中國大陸與台灣在ESL教學上應用CAI（電腦輔助教學）有關的討論也予以分析。 本研究也試圖提出一套方法來找出並發展適台這些市場的CAI/ESL工具，而且可證實工具的有效性。此外，本研究並提出對設計這些工具非常關鍵的技術、文化、社會以及政治方面的考量。 最後，本研究提出了一個「E計畫」的產品說明及設計。E計畫為一種模組性的CAI多媒體系統，用於加強台灣大學生第一年英語教學。 / This paper analyses the existing theories underlying the application of computers to improve ESL education, theories which currently define the nature of interfaces designed to enhance access to and flexibility of computer-based information, and arguments for the application of computer-aided instruction to the problem of ESL education in the Chinese-language markets of Mainland China and Taiwan. The paper then attempts to outline a methodology for identifying, developing, and verifying the effectiveness of appropriate computer-assisted instructional ESL tools for these markets. Moreover, it outlines specific technological, cultural, social, and political issues critical to the design of such tools. Finally, it provides a product description and design for Project E, a modular CAI multimedia program aimed at enhancing ESL training for a first-year English course for English students at a Taiwanese university.