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--- big_data [2014/07/23 15:55] – hkimscil
+++ big_data [2014/07/23 16:03] – hkimscil
@@ Line 9: / Line 9: @@
 Organizations
   * Relational Data Model: RDBMS (Relational Database Management System), mainly implemently by SQL (Structured Query Language).
-  * Entity-Relationship Data Model (ER): . . . It added additional abstraction to increase the usability of the data. In the model, each item was defined independently of its use. Therefore, developers could create new relationships between data sources without complex programming [[FootNote(Big Data For Dummies, 2013)]].
+  * Entity-Relationship Data Model (ER): . . . It added additional abstraction to increase the usability of the data. In the model, each item was defined independently of its use. Therefore, developers could create new relationships between data sources without complex programming ((Big Data For Dummies, 2013)).
   * Data warehouse in 90s
   * Beginning of unstructured data use -- BLOBs (Binary Large Objects)
@@ Line 22: / Line 22: @@
 {{:bigdataarchitecture.jpg?direct| Big Data Architecture}}
+Sources of big structured data
   * Computer-generated or Machine-generated Data
   * Human-generated Data
-  * Hybrid Data . . . .
-  * Sensor data . . . . RFID tags, Smart meters, medical devices, GPS data, etc.
-  * Web log data . . . Google analytics,
-  * Point-of-sale data . . . Cashiers' swipes . . . .
-  * Financial data
+  * Computer-generated or Machine-generated Data
+    * Sensor data . . . . RFID tags, Smart meters, medical devices, GPS data, etc.
+    * Web log data . . . Google analytics,
+    * Point-of-sale data . . . Cashiers' swipes . . . .
+    * Financial data
+  * Human-generated Data
+    * Input data . . . .
+    * Click stream data . . . .
+    * Gaming-related data . . . .