In this phase of the project, you need to perform the following design activities in continuation of the analysis activities from assignment 2.

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 confirm 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 the 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 on them using sequence diagrams.