You are responsible for designing an online photograph library system. This system allows users to create and modify their profiles, upload and manage their images, and share their images with selected friends. The system requirements are as follows : i) Each user should be able to create and modify their profile. ii) Each user should be able to search for and friend other users. iii) Users should be able to accept or reject friend requests. iv) Each user should be able to create, store and view albums. v) Each user should be able to create, delete, store, view, and organize photos. vi) Each user should be able to mark their photos as public, private, or friends-only. vii) Each user should be able to add comments to photos and albums. 1 From the above requirements, a) Create Use-Case Diagram