Payment countdown timer

[gary-rowe]

In order to reduce currency volatility risk
As a customer
I want to see a countdown timer during checkout

Estimated time (days): 1

Acceptance Criteria

Scenario 1: Making payment
Given a shopping cart with items
And the payment page
When I confirm the order
Then a timer will start against the online quote
And if I navigate away and come back the timer will continue from the original starting point

[gary-rowe]

This will

• induce a sense of urgency in the buyer
• induce fear in the buyer (mitigated by a reasonably lengthy time, and option to back out/reset at any time)
• require support for a TTL field in the transaction database