P0924WV模塊報(bào)警鍵盤可議價(jià)
P0924WV模塊報(bào)警鍵盤可議價(jià)
P0924WV模塊報(bào)警鍵盤可議價(jià)
P0924WV模塊報(bào)警鍵盤引腳線
P0924WV模塊報(bào)警鍵盤電路圖
P0924WV模塊報(bào)警鍵盤線路圖
P0924WV功能模塊獨(dú)立的概念是功能模塊化、抽象、信息隱蔽和局部化概念的直接結(jié)果。
P0924WV抽象是指對(duì)事物、狀態(tài)或過(guò)程之間所存在的某些相似的方面集中和概括起來(lái),而暫時(shí)忽略他們之間的差異,即考慮抽象事物的本質(zhì)特征而暫時(shí)不考慮他們的細(xì)節(jié)。
P0924WV信息隱蔽是指再設(shè)計(jì)功能模塊時(shí)使得一個(gè)功能模塊內(nèi)所包含的信息(過(guò)程或數(shù)據(jù)),對(duì)于不需要這些信息的功能模塊來(lái)說(shuō)是不能訪問(wèn)的。
P0924WV信息隱蔽原則對(duì)于以后在軟件維護(hù)期間修改軟件時(shí)會(huì)帶來(lái)極·的好處,因?yàn)榇罅繑?shù)據(jù)和過(guò)程是軟件的其他部分所不能覺察的,因而再對(duì)某個(gè)功能模塊修改時(shí)就不大會(huì)影響到軟件的其他部分,所謂局部化是指把一些關(guān)系密切的軟件元素在物理位置上彼此靠近。
P0924WV The concept of functional module independence is a direct result of the concepts of functional modularity, abstraction, information hiding and localization.
P0924WV Abstraction refers to concentrating and summarizing some similar aspects that exist between things, states or processes, while temporarily ignoring the differences between them, that is, considering the essential characteristics of abstract things without temporarily considering their details.
P0924WV Information concealment refers to redesigning functional modules so that the information (process or data) contained in a functional module cannot be accessed by functional modules that do not need this information.
P0924WV The principle of information concealment will bring great benefits to future modifications to the software during software maintenance, because a large amount of data and processes cannot be detected by other parts of the software, so modifications to a certain functional module will not affect the software. For other parts, the so-called localization refers to placing some closely related software elements physically close to each other.
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