Brief Description: A crewmember or a viewer wants to look at racedata or wants to view detailed information of a race.

1. A crewmember or viewer wants the watch the race.

2. The system will redirect the viewer or crewmember to a new page.

3. The system will load up the new page, where the crewmember or viewer can see a new, empty tab.

Brief Description: A crewmember wants to view the data of a specific round during the current race, to analyse that specific round and see if there's anything wrong with the car or the driver.

1. A crewmember is going to analyse the data of a specific round.

3. The crewmember inserts the desired rounds to view.

2. The system will ask the crewmember to insert which range of rounds the user wants to view.

4. The system creates a new tab with only the desired rounds as data that can be viewed.

Brief Description: A crewmember wants to see a list of old races so he can choose one to watch back.

1. A crewmember is going to watch a race back.

2. The system will get all the races from the database and show them on the page.

Brief Description: A crewmember wants to create a new tab.

1. The crewmember wants to create a new tab

3. The crewmember supplies system with a tab name.

4. The crewmember confirms the given input.

2.System asks for a tab name.

5. System validates if supplied tab name is correct.

6. System adds the new tab.

4a [Crewmember supplies starting round and ending round]

5. System validates if supplied information is correct.

6. System adds the new tab.

Brief Description: A crewmember wants to update a existing tab.

1. The crewmember wants to update a tab

3. The crewmember supplies system with a tab name.

4. The crewmember confirms the given input.

2. System asks for a new tab name

5. System validates if supplied tab name is correct.

6. System updates the tab name.

Brief Description: A crewmember wants to read an exisiting tab

1. The crewmember wants read its tab

2. System shows details of given tab

Brief Description: A crewmember wants to update a existing tab.

1. The crewmember wants to delete a tab

3. The crewmember confirms deletion

2. System asks for a confirmation

4. System deletes tab.

Brief Description: A crewmember wants to view the data from the sensors in a graph, to do this they place their desired graph in their tab.

1. The crewmember is going to add a new graph to his tab.

3. The crewmember selects the desired sensor to add a graph from.

5. The crewmember selects the desired type of graph to add to the tab

2. System shows all sensors to choose a graph from.

4. System shows all graph that are included in the current selection.

6. System adds the graph to the tab.

2a. There are no sensors available in the database.
      end of usecase.

4a. There are no graphs available that are linked with the shown sensors.
      end of usecase.

Brief Description: A crewmember wants to delete a graph from a tab.

1. The crewmember selects a tab to remove a graph from.

3. The crewmember removes the graph he doesn't want.

2. System shows graphs on selected tab.

4. System removes the graph from the selected tab.

2a. There are no graphs on the selected tab.
      end of usecase.