Integration Guide

Table Of Contents

Software Description

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WaveWorks PSS, Integration Guide, 1.10 Page 79

8.3 Shopping Trip Subsystem

Once the shopper retrieves the proper hand held terminal from the dispenser, the Shopping Trip

Subsystem allows the shopper to add and delete items from their basket and view the total

amount and number of items scanned during their current shopping trip. Shopping trips can be

ended by returning the hand held terminal to an empty dispenser slot or by scanning an “End of

Trip” barcode. Each activity during the shopping trip is logged and available for review from the

Service Terminal.

8.3.1 Start of Shopping Trip Processing

When a customer “swipes” their card to reserve a scanner to go shopping, the system will

perform the following:

1. ValidateCustomerverifies the following:

• that the customer is in the Pss_Customer database table and is not suspended;

• that the customer has no outstanding transactions (in the Pss_Shopping_List table), and

• that the card has no current shopping trips (in the Pss_Session table).

2. CreatShoppingListinitializes the tables Pss_Shopping_List, Pss_Session, and

Pss_Shopping_Activity.

3. StartShoppingTripoccurs at removal of the scanner from the dispenser.

4. GetTextretrieves all text necessary for display to the shopper (in the shopper's language).

8.3.2 Shopping Trip Processing

For Asterix 2 terminals, the "+" key is a physical key on the scanner; for the Asterix 3 terminals,

the "+" key is the trigger. The "-" key is a physical key on either terminal.

After the shopper scans a barcode, the following steps are taken in the StepServer Script

procedure ProcessInputData to process the barcode:

1. Parse the barcode

• A call to PssSpecialBarcode to break up the scanned input field into its disparate parts

• Modifications to the barcode from what was reported as scanned to what is needed to

compare into the item table

• Determination of whether a barcode is a “special” barcode that requires special handling

(e.g. the End of Trip barcode)

2. If, in the output from the above method, a “special” barcode is encountered, it is specifically

handled