Shop Project - Documentation
Pillar 4: Business Logic & Privacy Architecture
This section documents the core trading processes. To ensure maximum independence from regulatory reporting mandates (e.g., PStG-E), the system operates as an assisted, private bulletin board based on the zero-knowledge principle.
Order Flow & Client-Side Transactions
The processing occurs decentrally. The shopping cart and checkout process do not conclude contracts server-side, but instead pass structured intents directly into the private peer-to-peer communication system.
- GROUP: Order Flow & Checkout Process (order-processing)
- Article Flow – Status transitions of public offers from listing to disappearance
- Shopping Cart – Temporary client-side aggregation of purchase intents
- Checkout Process & Intent – Passing the formatted agreement as a structured chat message
- Returns & Conflicts – Private resolution between users via system-supported screenshots
Finance & Interactive Chat Tools
- GROUP: Finance & Interaction (finance-interaction)
- Pricing & Shipping – Price calculations and shipping fee indicators provided as a pure service
- Payment Assistant – Secure display of IBAN/bank details within chat without platform-side escrow
- Chat & Transaction Flags – Controlling states (Paid, Shipped) directly at the peer level
- Reviews & Trust – Bilateral feedback system after completion of private interactions
Regulatory Boundary & Private User Archive
Since transaction data is processed in isolation, the system aggregates histories exclusively for the individual user's personal profile ("What did I buy/sell and when?"). This data is locked from global platform exports or admins. This protects collectors and exempts the platform from state monitoring obligations.