1. plugin
   1. componet
      1. provides
         1. service
      2. object
   2. new
      1. add
      2. processing elements
         1. to existing plugins
   3. creation
      1. PDE (plugin development environment )
         1. environment
            1. creating
            2. integrating
   4. structure
      1. manifest
         1. declaration
            1. dependencies
            2. services
      2. files
         1. MANIFEST.MF
            1. identifier
            2. uniq
            3. version
            4. dependencies
         2. plugin.xml
            1. declaration
            2. extension points
            3. so the other plug-in can extend functionality
            4. original plug-in
            5. layer of separation
            6. original plug-in
            7. extending plug-in
            8. building time
            9. required
            10. specific attributes
            11. to define extension
            12. extension
            13. to the original plug-in
            14. functionality
            15. Subtopic 2
      3. facilates
         1. lazy-loading
            1. as-needed
            2. startup time
            3. reduction
            4. memory
2. runtime
   1. infrastructure
      1. provided
      2. support
         1. operation
            1. activation
            2. deactivation
            3. of set of plug-ins
            4. working
            5. together
3. platform
   1. extensible
   2. building
      1. IDEs
   3. core of services
      1. provided
      2. controlling
         1. tools
            1. support
4. extensibility
   1. mechanism
   2. new plug-in
      1. can
         1. add
5. architecture
   1. no monolitic
   2. modular
      1. kernel
         1. small
         2. OSGi R4
            1. implementation
            2. specification
            3. component model
            4. good
            5. runtime
            6. mechanism
            7. model
         3. environment
            1. execution
            2. plug-ins
      2. plug-in loader
      3. plug-ins
         1. rely on services
            1. provided
            2. other plug-ins
         2. provide services
6. Main Topic 6