Updated The birth of a python plugin architecture (markdown)

The-birth-of-a-python-plugin-architecture.md

@@ -1 +1,17 @@
-#The birth of a python plugin architecture
+#The birth of a python plugin architecture
+
+## Q&A
+Q. What is the plugin architecture design pattern?
+
+A. The plugin architecture design pattern (also known as microkernel) is a philosophy that surrounds a core application with a number of attachable/detachable modules. These module can be attached and detached in runtime.
+   The main benefits are the following.
+   - A core application that needs little to no updating unless it's updated core functionality.
+   - Functionality can be kept and maintained in small separate modules (plugins). A plugin can be updated regardless of the core application as long as it maintains the same interface to the core application.
+
+Q. What is required of a plugin system?
+
+## Plugin requirements
+* Plugin registration (installation)
+* Plugin activation (activate the plugin)
+* Plugin deactivation (deactivate the plugin)
+* Plugin un-registration (un-installation)