[教育學(xué)]資訊科技基礎(chǔ)建設(shè)(編輯修改稿)
2025-01-04 00:22 本頁(yè)面
【文章內(nèi)容簡(jiǎn)介】 AVA虛擬機(jī)器（ JAVA Virtual Machine, JVM）來(lái)執(zhí)行程式。 16 Java2EE 軟體開(kāi)發(fā)平臺(tái) 17 Programming Tools ? Graphical Programming Interfaces ? Programming Editors ? Debuggers除錯(cuò)器 ? ComputerAided Software Engineering (CASE)電腦輔助軟體工程 tools 18 資料處理課程大綱 ? 文件 ? 傳統(tǒng)檔案處理 ? SQL Queries ? 資料倉(cāng)儲(chǔ)與資料探勘 ? 資料庫(kù)發(fā)展歩驟 19 Document Concepts (Unstructured Information) Character字母 Word/Phrase字／詞 Sentence句 Paragraph段 Section/Chapter節(jié)／章 Document文件 Document Repository 文件儲(chǔ)存庫(kù) 20 Data Concepts（ structured Information) ? Character – single alphabetic, numeric or other symbol字串、數(shù)字等 ? Field欄位 – group of related characters ? Attribute屬性 – characteristic of an entity ? Entity實(shí)體 – person, place, object or event ? Record記錄 – collection of attributes that describe an entity ? File檔案 – group of related records ? Database資料庫(kù) – integrated collection of logically related data elements 21 邏輯資料元件 22 Traditional File Processing Systems and problems ? Data Redundancy資料重覆 – duplicate data requires an update to be made to all files storing that data ? Lack of Data Integration缺乏整合 – data stored in separate files require special programs for output making ad hoc reporting dif
教學(xué)課件相關(guān)推薦
鄂ICP備17016276號(hào)-1