1. Layers
   1. 2
   2. MODEL
      1. underlying
      2. WORKSPACE
      3. collection
         1. Resources
            1. projects
            2. folders
            3. files
            4. structured
            5. within
            6. hierachy
            7. tree
            8. subtree
            9. subset
            10. information
            11. projects
            12. many
            13. folders
            14. many
            15. files
            16. many
   3. UI
      1. WORKBENCH
         1. within
         2. Perspective
            1. controls
            2. visibility
            3. items
            4. Model
            5. which
            6. projects
            7. folders
            8. files
            9. UI
            10. which
            11. views
            12. editors
            13. actions
            14. navigation
            15. workspace
            16. suit
            17. user
            18. task
            19. container
            20. visual
            21. set
            22. parts
            23. views
            24. editors
            25. page
            26. book
            27. >=1
            28. active
            29. 1
            30. information
            31. filtering
            32. see
            33. relevant
            34. remove
            35. irrelevant
            36. has
            37. INPUT
            38. Workspace
            39. Project
            40. ...
            41. TYPE
            42. Resource
            43. Java
            44. ...
            45. ID
            46. unique
            47. determines
            48. layout
            49. view
            50. tailored
            51. task
            52. to suit
            53. visible
            54. views
            55. actions
            56. new
            57. extension point
            58. in plug-in registry
            59. steps
            60. create
            61. plug-in
            62. add
            63. perspective extension
            64. plugin.xml
            65. define
            66. perspective class
            67. for extension
            68. override
            69. perspective
            70. existing
      2. presentation
         1. Resources
            1. projects
            2. folders
            3. files
2. Platform