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User story 1

As an air traffic controller So I can get passengers to a destination I want to instruct a plane to land at an airport

Nouns

air traffic controller, passengers, destination, plane, airport

Verbs

get, instruct, land

Functional representation

Objects:

  • plane
  • airport

Messages:

  • land

Diagram

Airport <--land--> Plane

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User story 2

As an air traffic controller So I can get passengers on the way to their destination I want to instruct a plane to take off from an airport and confirm that it is no longer in the airport

Nouns

air traffic controller, passengers, destination, plane, airport

Verbs

get, instruct, take off, confirm

Functional representation

Objects:

  • Airport
  • Plane

Messages:

  • take_off
  • left_airport?

Diagrams

Airport <--take_off--> Plane

Plane <--left_airport?--> true

##################################

User story 3

As an air traffic controller To ensure safety I want to prevent landing when the airport is full

Nouns

air traffic controller, safety, airport, full

Verbs

ensure, prevent, landing

Functional representation

Objects:

  • Airport
  • Plane

Messages:

  • landing
  • full?

Diagrams

Airport <--landing--> Plane

Airport <--full?--> true/false

##################################

User story 4

As the system designer So that the software can be used for many different airports I would like a default airport capacity that can be overridden as appropriate

Functional representation

Objects:

  • Airport

Messages:

  • set_capacity

Airport <--set_capacity--> num

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User story 5

As an air traffic controller To ensure safety I want to prevent takeoff when weather is stormy

Functional representation

Objects:

  • Airport
  • Weather
  • Plane

Messages:

  • prevent_take_off

Diagrams

Airport <--take_off--> Plane Weather <--stormy?--> ture/false

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User story 6

As an air traffic controller To ensure safety I want to prevent landing when weather is stormy

Functional representation

Objects:

  • Airport
  • Weather
  • Plane

Messages:

  • prevent_landing

Diagrams

Airport <--land--> Plane Weather <--stormy?--> true/false

##################################

Edge cases

  • planes can only take off from airports they are in;

done

  • planes that are already flying cannot take off and/or be in an airport; (when plane lands left_airport? should be false)

done

  • planes that are landed cannot land again and must be in an airport

done

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