Database abstraction layer for industrial data management systems
The Data Access Layer (DAL) is a software component within the Database Management Module that provides an abstraction interface between business logic and physical database systems. It handles all database operations including CRUD (Create, Read, Update, Delete) functions, transaction management, connection pooling, and data mapping. In industrial contexts, it ensures reliable access to production data, quality metrics, equipment status, and supply chain information while maintaining data integrity and security.
诱因 → 失效模式 → 工程缓解
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The primary function is to provide a secure, efficient abstraction between business applications and physical databases, ensuring reliable access to production data, equipment metrics, and quality information while maintaining performance and data integrity.
It improves reliability through connection pooling, transaction management, error handling, and caching mechanisms that prevent database overload, ensure data consistency during failures, and maintain system performance under varying loads.
Key standards include ISO/IEC 25010 for software quality, ISO/IEC 9126 for software engineering, ISO 8000 for data quality, and DIN 66230 for information processing systems in manufacturing environments.
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