Specify the entity-relationship diagram for database
Question 1: Explain why design conflicts might arise when designing an architecture for which both availability and security requirements are the most important non-functional requirements.
Question 2: Draw diagrams for the conceptual and process views of the architectures of the following systems:
*An automated ticket-issuing system used by passengers at a railway station
*A computer controlled video conferencing system that allows video, audio and computer data to be visible to several participants at the same time
*A robot floor cleaner that is intended to clean relatively clear spaces such as corridors. The cleaner must be able to sense walls and other distributions.
