Designing Pay-per-view Event Types
The following event types illustrate typical events for a free pay-per-view movies membership:
SC Event Type
Description
Membership Type
Algorithm System Event
Algorithm
ADDPPV
Free pay-per-view movies
FREEPPV
Event Creation
Generate Bill Message
Event Cancellation
Validate Balance Not < Zero
REDEEMPPV
Redeem pay-per-view movies
FREEPPV
Event Creation
Validate Balance Not < Zero
Event Creation
Generate Bill Message
These event types assume the following:
• Any type of new event should generate a bill message.
• For adding free movies, it is assumed that the quantity is positive so when the event is cancelled, the algorithm verifies that the balance does not become negative.
• For redeeming free movies, it is assumed that the quantity is negative so when the event is completed, the algorithm verifies that the balance does not become negative.
• These events do not affect the general ledger and they do not directly affect the customer's balance so no adjustment algorithm is needed.