Peer-to-peer e-commerce platforms are community-based marketplaces that enable individuals to communicate directly with each other and conduct e-commerce operations.
Peer-to-peer (P2P) e- commerce has grown in popularity in recent years. P2P's popularity stems primarily from the numerous benefits it provides, such as the ease of sharing computer resources and cost savings. This paper models a P2P digital product marketplace using both semi-formal and formal specification methods. First, models are written in UML because it is expected to be simple to understand and cost effective. The models are then transformed into a formal notation known as object-Z notation. A formally specified and verified model of e-commerce transactions will provide an accurate, fail-safe, and robust e-commerce transaction processing environment.
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