UN is an international organization that aims to facilitate cooperation in various sectors and promote world peace. The dignity pattern can be seen playing an important role in this international scenario, where the countries command certain level of dignity and work toward solving international problems and resolving issues.

a. Draw a class diagram based on the dignity pattern to show the application of UN

b. Document a detailed and significant use case as shown in Case Study 1

c. Create a sequence diagram of the created use case of b.