===============================
| class | Oystercard |
|---|---|
| variable | maximum_amount: Integer |
| variable | minimum_amount: Integer |
| variable | balance: Integer |
| class | |
| methods | touch_in() |
| methods | touch_out() |
| methods | top_up() |
| methods | deduct_fare() |
===============================
| class | class |
|---|---|
| class | Oystercard |
| variable | maximum_amount: Integer |
| variable | balance: Integer |
| methods | top_up() |
| methods | deduct() |
In order to use public transport
As a customer
I want money on my card
Nouns: money, card // Verbs: "money on my card"
In order to keep using public transport
As a customer
I want to add money to my card
Nouns: money, card // Verbs: "add money to my card"
In order to protect my money
As a customer
I don't want to put too much money on my card
Nouns: money, card // Verbs: money restriction/maximum_amount
In order to pay for my journey
As a customer
I need my fare deducted from my card
Nouns: fare, card // Verbs: "deducted from my card"
In order to get through the barriers
As a customer
I need to touch in and out
Verbs: "touch in and out"
In order to pay for my journey
As a customer
I need to have the minimum amount for a single journey
Nouns: amount // Verbs: "minimum amount for a single journey"
In order to pay for my journey
As a customer
I need to pay for my journey when it's complete
Verbs: "pay for my journey when it's complete"
In order to pay for my journey
As a customer
I need to know where I've travelled from
Verbs: "know where I've travelled from"
In order to know where I have been
As a customer
I want to see to all my previous trips
Nouns: trips // Verbs: "see to all my previous trips"
In order to know how far I have travelled
As a customer
I want to know what zone a station is in
Nouns: zone, station Verbs: "know what zone a station is in"
In order to be charged correctly
As a customer
I need a penalty charge deducted if I fail to touch in or out
Nouns: penalty, charge Verbs: "charge deducted if I fail to touch in or out"
In order to be charged the correct amount
As a customer
I need to have the correct fare calculated
Nouns: fare Verbs: "correct fare calculated"