ABCmalli

ABCmalli is a fictional online marketplace used in technical literature and training materials to illustrate scalable, API-driven e-commerce platforms.

In the canonical ABCmalli scenario, the platform operates as a multi-vendor marketplace enabling independent sellers to list products across categories, while buyers browse, compare, and purchase goods from multiple vendors in a single cart.

Key features include an API-first catalog and search service, a modular payment gateway, order management, seller dashboards, and a customer-facing frontend. The architecture is described as headless: a frontend application communicates with backend services via REST or GraphQL APIs; services are organized as microservices running in the cloud; data analytics and recommendation engines support personalization.

Business model: commission-based revenue, optional subscription plans for sellers, and value-added services. Privacy and security concerns include PCI compliance, fraud prevention, and data governance.

Real-world use and reception: ABCmalli is widely mentioned in educational materials as a best-practice synthesis of marketplace design, though it is not a real company.