現代的產品開發需仰賴不同專業領域知識的集合，以團隊合作的方式進行產品開發以符合消費市場的需求。由於跨功能團隊協同開發產品，彼此之間需相互有效的溝通與互動才能有利於產品開發的執行。本研究以訪談5家公司或事業單位的產品設計部門，探討跨功能團隊在執行產品開發的溝通問題。本研究結果發現：(1)跨功能團隊溝通管道以面對面、電話、電子郵件、會議溝通4種管道進行專案的溝通。(2)溝通不良發生的時機以系統層級階段發生的溝通不良情形最多，其次為細部設計階段與概念發展階段。(3)溝通不良發生的原因有：設計目標不明確、專案成員間專業背景相異、專案成員間互有堅持、專案成員參與度不足與缺乏詳細的設計討論。其中以專案成員間專業背景相異為最關鍵的溝通不良因素。(4)溝通不良對於產品開發所造成的後果為：失去接案的機會、設計變更、專案進度拖延、開發費用增加與產品品質的隱患。失去接案的機會是溝通不良最嚴重的後果。(5)跨功能團隊的溝通不良多由專案經理或主管之間進行協調取得共識。(6)專案成員的背景相異的因素發生在產品開發流程的各階段。(7)專案型的產品開發組織型態溝通問題可由專案經理即時的進行協調與整合，避免專案成員間的溝通不良，但若設計目標不明確，亦造成失去接案機會的嚴重結果。輕型矩陣型的產品開發組織在跨部門溝通中協調緩慢，亦造成產品開發進度的拖延。產品開發跨功能團隊雖然有專業背景的差異，可經由跨領域學習及互動中產生共通知識，降低成員之間因專業背景的差異所造成的溝通不良。

Product development nowadays require different professional background teams co-work each other to develop products to meet market requirement. Due to coordinate with different Cross-Functional Team, effective communication and interaction between Cross-Functional Team will benefit product development process.

In the research I had interviewed product design department of five companies or business units, discussing communication issue between Cross-Functional Teams in product development process. The research found: 1) Cross-Functional Team use to face to face, telephone, E-Mail, conference, four communication channel to communicate each other. 2) The major bad communication happened in system level design stage, the second are detail design and concept development stage. 3) The reasons of bad communication are: Design target is not clear, different background between Cross-Functional Team, team members insist on personal opinion, team members lacked for joining project and lack of detail design review. Background difference is key factor for bad communication between Cross-Functional Team. 4) The effect for bad communication are: lose business, design change, project schedule delay, product development expanse increase, product quality issue. Lose business is most serious result due to bad communication. 5) Communication issue between Cross-Functional Team eliminated by project manager or functional department manager. 6) The factor of background difference effect bad communication that happened in each stage of product development process. 7) Communication issue of project organization eliminated by project manager but if design target is not clear also cause business lose result. Matrix organization coordination slowly between Cross-Functional Team will effect project schedule delay also.

Cross-disciplinary learning and interaction to produce common knowledge may reduce communication issue of background difference between Cross-Functional Team.

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