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    # Mis 筆記 資訊科技 ### MIS剖析主要方式 1. 成本 品質 效率->效益&顧客滿意度 2. 安全 3. 隱私 -> CIA (Confidential、Integrity、Availability 4. 3A 1. Authentication 認證:確認身份 2. Authorization 授權:授予應得之權限 3. Accounting 稽查:記錄其行為 流程圖:PDCA 計畫書:5W1H * RFID(Radio Frequency Identify)電子標籤, 特性:不接觸,晶片存量大,可重複讀寫 缺點:隱私議題,成本,干擾 被動:沒有電池 半被動式:有電池,平常休眠,讀取器訊號才開啟電池 主動:常發訊號 * QR code(Quickly Response code)<->bar code:不用直線對準 存更多資料 * NFC (Near Field Communication) 可模擬卡 可讀卡 可以p2p傳送資料、基礎為RFID的技術 * iBeacon mm-10m距離接收通知 * IOT (Internet of thing) 1.感測器 連網 根據回傳反應 2.感知層 網路層 應用層 * Mobile Computing:使用者透過各種手持設備,使用行動應用程式稱之 * CAC情境感知運算(Context-Aware Computing):結合感測器,行動運算,AI,分析使用者資訊,並給予相對應的服務 --- ### Web 2.0 * 特性:client 可以進行資訊分享、協同合作、分散式管理 使用者主導 <u>Mashup 混搭 :功能混搭 </u> * Social Bookmarking 網路書籤:收藏分享#Tag folksonomy(大眾分類法) * Virtual Community :自由表達 缺乏集中管理 多對多傳播 自願 1. Social Network Computing:支援使用者的網路平台 2. Social Network Service:如facebook 又稱為Social Network site first tier: 每個人都有 second tier:特定族群才有(eq.巴哈) * Wiki 特性 :共筆 版控 內容條目多 條目成長快速 內容更新頻繁 多重觀點 成本低 * Rss(Really Simple Syndication) 推送資訊給消費者m,不需要user request * viral hook:An inducement to pass communiction along the tier of communuty (dcard在fb經營粉專) --- ### Cloud Computing 1. 3 layer : saas paas Iaas eq Saas:google apps saleforce pixlr Paas:Heroku azure force.com Iaas:AWS Hp cloud start IBM Blue 2. 5特性:resource pooling:資源池 rapid elasticity or expansion on-demand self-service broad network access measured service 4部署:public cloud private cloud community cloud:多個private構成 Hybird cloud:private and public 都用 * Grid computing: 善用不同台電腦多餘的資源,解決大規模計算的問題 * On-demand Computing:資料轉到資料中心處理,處理尖峰流量問題 * Virtualization:在同個硬體資源上虛擬出不同的硬體資源,已達到最大的運算能力 * Multi-Tenacy technology:多重租賃,探討與實作如何於多用戶的環境下共用相同的系統或程式元件 data isolation * CDN(Content delivery network) * Edge Computing:分散式架構,將部分運算拆解讓端點可以進行處理= fog computing * SDN(Software defined Networking):is a general term for being able to differentiate between the level of network performance and reliablity required by different applications and to allocate more network resources to applications with relatively higher priorities * load balance:server,bandwidth --- 資料倉儲(Data warehouse):組織中資料集中儲存的倉庫,管理者可以透過資料分析工具動態即時檢視其中的資料,以支援決策制定。 <u>多維度</u> 特性:1.Intergrated 2.Non-Volatile:存入後就不可更改 3.Time Variance:強調時間變化的動態資料,目前與歷史資料共存 4.Subject Orient:根據決策主題設計資料架構。 1. OLAP:online analyst processing a. Roll-up b. Drill-down c. Slidev and Dice d. Pivot(Rotate) 3. ETL:extract transform load Data Mart:特定部門特定使者,為資料倉庫的子集合 Data Lake:沒有先建立起資料結構 沒有經過parsing的步驟,讀取才需建立起資料結構 資料沼澤:劣化版的資料湖泊,使用者無法存取,比較沒有價值 處理方式為:map reduce * Data Curation:針對數位化的研究資料加以維護,保存和加值,建置值得信賴的數位典藏褲以利現在和未來使用。 --- Data Mining: 分析技術,從大量的資料中找到未知、有價值且可以付諸行動的規則,用以預測未來的行為,以支援決策制定->須為結構化資料。 方法: 1. Classification:大量被標籤的資料中,根據已經定義好的類別,找出其各屬性對類別之影響,如影像辨識....,以供未來預測所屬類別 2. CLustering:未被標籤的資料,先根據群聚的數量(eq.分成n組),再進行歸納,並進行研判 3. Association:從大量交易中找出資料間的影響性,如啤酒與尿布 4. squence:加強clustering,加上順序的屬性 5. Estimation:加強classifcation,預測其未來的影響,如股票未來變化 * text-mining:使用資訊科技,從半結構或非結構化的文字文件,進行分析,以降低使用者的處理文件成本。 * Rss:really simple syndication:是一種用來分發和匯集網頁內容的xml格式,訂閱rss,只要透過RSS閱讀器,就可看到即時更新的內容 * Podcast:是指一種網際網路上發布文件並允許用戶訂閱feed以自動接收新文件的方法,用來製作電台節目,使用RSS2.0傳送訊息 * web2.0: ![](https://i.imgur.com/biEW7TW.jpg) * Malware Cross-side Network effect: 1. 當供應商數量越多時,消費者越有意願進入市場 2. 當消費者數量越多時,供應商越有意願進入市場 single-side Network effect: 1. 當消費者數量越多時,會吸引更多消費者進入市場 [data breached](https://www.google.co.uk/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&ved=2ahUKEwismJzg3u3tAhXxw4sBHW7qDb8QFjAJegQIARAC&url=https%3A%2F%2Fwww.csoonline.com%2Farticle%2F2130877%2Fthe-biggest-data-breaches-of-the-21st-century.html&usg=AOvVaw3DmyNs8W1Xb4E6zPt8f7O2) --- 募資平台: https://findit.org.tw/researchPageV2.aspx?pageId=1170 https://www.google.co.uk/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&ved=2ahUKEwiz3tz43u3tAhVyy4sBHe18B4YQFjABegQIBRAC&url=https%3A%2F%2Fwww.inside.com.tw%2Farticle%2F6650-what-is-crowdfunding&usg=AOvVaw1Qmxya5Z1jkrMsre-MuIFf --- 電子商務的六大機制 1. 完整性 integrity 2. 不可否認性 nonrepudiation 3. 身份辨識性 authenticity 4. 機密性 confidentiality 5. 私密性 privacy 6. 可取得性 availability

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