Data Flow Diagrams and System Context Diagrams

System Context Diagrams show a high level overview of the system with relationships to external entities.

A Data Flow diagram shows the processes that make up the system as well as the data stores.

Create a System Context diagram and a Data Flow Diagram for the following scenario:

People can rent bikes using a government scheme. They go to a bike stand and use a smart card to authenticate themselves and unlock the bike. The time, date, and location of borrowing are recorded. When the bike is returned, this information is recorded and a charge is calculated based on the number of hours borrowed. Bikes not returned after four days are considered missing and a list of their details is sent to the police.