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categories/database.md

@@ -32,10 +32,14 @@
 			- will impacted by time zone
 			- index by timestamp will be faster than datetime due to 4 bytes.
 
+## SQL join diagram
+
+![sql join diagram](https://raw.githubusercontent.com/wahyd4/knowledge-mind-mapping/master/Knowledge.mindnode/resources/FC67BE77-F837-4207-B3C4-45205F7C9C40.png)
+
 # Message Queue
 
 # Rabbitmq
 
 # activeMQ
 
-# Redis
+# Redis

categories/java.md

@@ -10,6 +10,7 @@
 - System.gc()
 
 ## JVM
+
 - Method Area
 	- Class name, Constant, static Constant, Class object
 - Heap
@@ -25,6 +26,8 @@
 - Native method stack
 - program counter
 
+### JVM insight
+![jvm insight](https://raw.githubusercontent.com/wahyd4/knowledge-mind-mapping/master/Knowledge.mindnode/resources/0AF6D004-6074-4396-94A0-6141B398BC94.png)
 ## Spring
 - Spring boot
 	- Rest controller
@@ -79,13 +82,20 @@
 - event listener
 	- [https://stackoverflow.com/questions/6270132/create-a-custom-event-in-java](https://stackoverflow.com/questions/6270132/create-a-custom-event-in-java)
 
-## JAVA se
-- modifier
-	- public
-	- no modifier
-	- protected
-	- priivate
-- NIO
+## JAVA SE
+
+### modifier
+
+	* public
+	* no modifier
+	* protected
+	* priivate
+
+### Java modifier diagram
+
+![Java modifier diagram](https://raw.githubusercontent.com/wahyd4/knowledge-mind-mapping/master/Knowledge.mindnode/resources/AF058A2F-FEB9-4C6A-837C-2DFF0950CA6C.png)
+
+### NIO
 	- Channels
 	- A channel is a kind of stream, from the channel data can be read into a buffer.
 	- channel implementations
@@ -135,4 +145,4 @@
 	- Selectors
 
 	- A selector allows a single thread to handle multiple Channels
-	- [http://tutorials.jenkov.com/java-nio/index.html](http://tutorials.jenkov.com/java-nio/index.html)
+	- [http://tutorials.jenkov.com/java-nio/index.html](http://tutorials.jenkov.com/java-nio/index.html)

categories/ruby.md

@@ -1,3 +1,7 @@
+# Objects inheritances
+
+![objects](https://raw.githubusercontent.com/wahyd4/knowledge-mind-mapping/master/Knowledge.mindnode/resources/0F278DB4-4103-44BA-BCBF-EB702C63D097.png)
+
 # Background jobs
 - Resque
 	- Single threaded process
@@ -66,8 +70,14 @@
 - GC.stat
 
 # Web frameworks
-- Sintra
-- Ruby on Rails
+## Sintra
+
+## Ruby on Rails
+
+### How Rails application works
+
+![Rails flow](https://raw.githubusercontent.com/wahyd4/knowledge-mind-mapping/master/Knowledge.mindnode/resources/01193273-3E02-4AB0-ADE9-037F1577CCB0.png)
+
 	- ORM
 		- Active record
 		- Mongoid

categories/software-design.md

@@ -100,6 +100,12 @@ In his book "Object Oriented Software Construction," Betrand Meyer introduced th
 - many_to_many
 - one to many
 
+![example](https://raw.githubusercontent.com/wahyd4/knowledge-mind-mapping/master/Knowledge.mindnode/resources/18F27D1D-F7CB-4E8B-BE47-90847CAEBC91.png)
+
+## One UML example
+
+![uml](https://raw.githubusercontent.com/wahyd4/knowledge-mind-mapping/master/Knowledge.mindnode/resources/656E28B3-4CCA-40F8-A95A-0F901E61AFA1.png)
+
 
 # Java Design pattern
 
@@ -115,4 +121,4 @@ In his book "Object Oriented Software Construction," Betrand Meyer introduced th
 		- about exection
 	- concurrency
 		- dealing with lots of things at once
-		- about structure
+		- about structure

categories/team-work.md

@@ -72,10 +72,3 @@
 	- One Delivery team
 	- High spped
 		- Team members can address problems more quickly
-
-# Test
-
-- unit test
-- integration test
-- functional test
-	- selenium

categories/testing.md

@@ -1,6 +1,24 @@
 # Testing
 
+## Types of testing methodologies
+
+- unit test
+- integration test
+- contract test
+- smoke test
+- functional test
+	- selenium
+	- cucumber
 
 # Test layers
 
 ![Good tests layers](https://raw.githubusercontent.com/wahyd4/knowledge-mind-mapping/master/assets/images/test_layers.png)
+
+
+## Functional test
+
+### Selenium
+
+#### How does selenium works
+
+![selenium](https://raw.githubusercontent.com/wahyd4/knowledge-mind-mapping/master/Knowledge.mindnode/resources/3D938731-E99C-4E75-B2A2-B4B96870EFAB.png)