銀行交易系統-1,設計理念,Design Requirements,Availabilityresponsiveness, throughput, stability, load balancing, quick recovery Reliabilityresponsibility, trustiness Integrityconsistency, truth, uprightness Securityconfidentiality, authentication, authority, recognizance, strength,Concepts applied,Global clock Independent failure Concurrency control Interprocess Communications Synchronous / Asynchronous (e.g.) Security assurance 操作管理 系統及資料維護管理 亂碼作業管理,Identical state vs. Less consistency,