1、Engineering and R&D(Design Concept) （設計理念）,2,DF”x”:Design for “Functionality”;（達至功能要求？） Design for “Manufacturability”;（可否生產？） Design for “Quality”;（達至品質要求？） Design for “Cost Effectiveness”;（成本效益？） Design for “Maintenance Capability”;（維修，維護，可持續？）,3,Design for “Functionality”- (eg. Server);Form Facto
2、r:ATX Micro ATX - PC?Tower Server Rack Server Blade Server - 1U; 2U;.? 2. Power Supplier:Power Rating; Physical Dimension; 3. Cooling Features:Heat Sinks; CPU Fans; Cases Fans; Temperature Sensors; 4. Filtering:Air Filter Prevent Contanmination;,4,5. Physical Security:Chassis Key Lockable (with heav
3、y gauge steel?); 6. Status Indicators:Status Indicator LEDs (power on / hard drive active / internal temperature rating, etc); 7. System Boards ,5,What Are the Differencies Between PC and Server in Terms of Functionality?(可靠性方面？) (速度方面？) (储存量方面？) (Backup方面？) (Else?),6,Design for “Manufacturability”;
4、Parts ,7,Design for “Manufacturability”;Assembly ,8,Design for “Quality”;Material Selection;模具材料？部品材料？ 2. Reliability;需滿足那些可靠性測試項目？ EMC / EMI? 3. Quality Control Method Consideration;IQC, IPQC, OQC; （檢驗方法？） Measurement Tools / Methods Assessment;校對方法？ 好用，容易用？,9,Design for “Cost Effectiveness”;Toolin
5、g Cost（如：模具數量）; 2. Material Cost（如：已優化利用率？）; 3. Production Cost（如：儘量考慮優化生產工序，以減少生產工時）; Material Handling Cost（如：原材料，半成品）; Inspection Cost（不增值的成本，越少越好）; Transportation Cost（交貨送貨成本）; Administration Cost（如：PN數量越多，行政費用越高）;,10,Design for “Maintenance Capability”; (Is less maintenance required possible?)Parts ,11,Conclusion:DF”x” is a basic “Design Concept” that the design engineer should always keep in his / her mind through out the whole design process. 每個“x”之間是會“相互影響”的. 故工程師應該從不同的角度去思考和審視每一個設計，而從中選擇一個“合理”的設計方案。格言:“Nothing Is Best But There Are Always Something Are Better!” “無最好，只有更好！”,END,
