1. Design the system architecture, describing the important hardware and software components (servers, clients etc.) and their role. Justify your design decisions that involve a choice of technology or choice of software components. It is strongly recommended to draw one or more architecture diagrams to better illustrate your designs. 2. Choose two distinct use cases and draw their user interface mockups in the form of storyboards. You should conform the principles of good UI design as taught in the subject. Storyboard diagrams should have sufficient details and annotations to give a clear idea of proposed design. 3. Perform use case realization for two most important use cases from the case study. Choose two important use cases for the system (from assignment 2) and elaborate them using sequence diagrams.