1. Categories
   1. Processes
      1. Jobs
         1. id
         2. process id
         3. command id
         4. order
      2. Tasks
         1. id
         2. process id
         3. user id
         4. timestamp
      3. History
         1. id
         2. user id
         3. task id
         4. result
         5. timestamp
      4. id
      5. category id
      6. name
      7. description
   2. id
   3. name
2. Commands
   1. Command parameters
      1. id
      2. command id
      3. type
      4. description
   2. Command arguments
      1. id
      2. command id
      3. parameter id
      4. user id
      5. value
   3. id
   4. name
   5. description
   6. executable