ANSI/ISA-95.00.07 : 2017

Enterprise-Control System Integration – Part 7: Alias Service Model defines a set of technology-independent services and messages that facilitate the mapping of identifiers across different applications or systems, supporting seamless communication among various namespaces. Namespaces are container objects for groups of unique, related identifiers, with each element having a distinct name or identifier to prevent naming and semantic conflicts. Developing a common representation of objects, including enumeration strings and equipment tag names, addresses issues caused by conflicting identification systems in manufacturing operations.
The key components in ISA-95.00.07 include defining an alias directory model that organizes categories, namespaces and principal items to streamline data exchanges. It outlines essential services for obtaining principal item IDs from local namespace items, querying alias directories and creating equivalent identifiers across different systems. Furthermore, this standard emphasizes security measures, including authenticated access to services, which enhances the integrity of data exchanges. Additionally, ISA-95.00.07 supports the integration of existing ontology mapping standards and offers guidance for implementing alias services using various technologies, including web services and RESTful interfaces.