Olive Young's Self-Checkout (SCO) Rollout Story

Olive Young carried out the self-checkout counter (SCO) project to solve the problem of payment queue lines occurring during sale periods and to reduce the workload of in-store staff.

During development, the team leveraged the existing WinForm-based POS system core, while newly developing the View layer using WPF and the MVVM pattern. Within a short six-month period, core features were implemented first and priority, and the system was sequentially rolled out to stores including Gwanak Town branch and Daegu Dongseongno branch.

Key features included the following elements:

• Multilingual service: Support for Korean, English, Japanese, and Chinese
• Staff call: Sends a notification to staffed-checkout employees when help is needed during self-checkout
• Admin functions: Operational convenience features such as refunds and checking partner discount card limits

As a result of the rollout, the first store to install it, Gwanak Town branch, saw its daily number of sales receipts issued increase by about 30%, and achieved the result that 58% of all sales receipts issued were processed through self-checkout counters. In a survey, a majority of customers who had previously used staffed checkout counters also showed a positive response toward reusing self-checkout counters.