Контрактний підхід до зберігання подій для веб-платформи генерації наборів даних

Abstract

Synthetic event data is used to test web analytics and to build training datasets without involving personal information. The diversity of event types and their automated generation increase the risk of schema drift, incomplete records, and inconsistencies at the session level. This paper proposes a contract-based approach to event storage: a data contract specifies the event structure, required attributes, and versioning in accordance with the ODCS. The implementation combines a relational store with a shared core of attributes and a JSON field for event-specific parameters linked to a schema version, along with pre-ingestion validation and enforcement of session invariants. As a result, the system produces a consistent event stream suitable for analytics and controlled schema evolution.