信息资源管理_ch03Database Processing.pptVIP

小专题：iDoctor is coming 将传感器和智能手机结合起来的产品，正在涌现，尤其是在健康设备领域 Tinke是一款基于iphone的，依靠传感器技术的脉搏血氧仪 将Tinke通过iPhone的尾插排连接，将手指放在传感器上超过60秒，就能记录下你的心率，呼吸频率以及血氧水平 原理 Tinke通过自身的红外传感器来扫描用户手指端的毛细血管，并依靠内置的一个图像探测器将捕获的信息以波状图的形式显示出来。 利用：心脏每次跳动都会引起手指尖内毛细血管容积发生很小的变化，Tinke的红外传感器感知到这种变化，并经过信号放大、调节和整形后输出完整的脉搏波电压信号。 原理 安装在Iphone中的相应的程序会自动分析这些信息并在手机上生成可视化的数据信息图。 用户可以将这些数据图表发布到社交网站上和朋友分享和讨论，分析，交流对身体状态的感受。 我们的时代，通讯设备、传感技术，社交网络和数据分析的发展使得我们正在达到一个足以形成新的技术革命的阶段。 移动健康设备得到了前所未有的发展和重视，有很多结合iPhone的便携式医疗设备推出，包括检查心电图的iCard ECG，测量血压的iHealth BP3等产品。 iCard ECG iHealth BP3 Q1 What is the purpose of a database? Q2 What is a database? Q3 What are the components of a database application system? Q4 How do database applications make databases more useful? Q5 How are data models used for database development? Q6 How is a data model transformed into a database design? Q7 What is the users’ role in the development of databases? Active Review Q1 What is the purpose of a database? Q2 What is a database? Q3 What are the components of a database application system? Q4 How do database applications make databases more useful? Q5 How are data models used for database development? Q6 How is a data model transformed into a database design? Q7 What is the users’ role in the development of databases? Study Questions Database Applications at FlexTime What Are Forms, Reports, and Queries? Form What Are Forms, Reports, and Queries? Reports show data in a structured context. What Are Forms, Reports, and Queries? Sample query form used to enter phrase for search Sample query results of query operation Forms, reports, and queries work well for standard functions. However, most applications have unique requirements that a simple form, report, or query cannot meet. Application programs process logic that is specific to a given business need. Application programs serve as an intermediary between the Web server and database. Responds to events, such as when a user presses a submit button; also reads, inserts, modifies, and deletes databa