Cloud Access 25125

Your author discusses four different access models, but there is a fifth that is gaining interest, particularly in a cloud environment. Read through the TBAC attachment:"sacmat08-task.pdf" (or find additional resources), then complete the following for each of the five models:

• Provide a brief description of the model.
• Provide a scenario where the model would be the optimal choice for access control, and why.
• Provide a scenario where the model is the least optimal choice for access control, and why.

Another link that may help 

http://www.hightechinthehub.com/2011/08/task-based-access-control-in-the-cloud/