Federal Ministry of Economic Affairs and Energy -Alignment Report for Reference Architectural Model for Industrie4.0 / Intelligent Manufacturing System Architecture. Sino-German Industrie4.0 / Intelligent Manufacturing. Standardisation Sub-Working Group
The resources layer addresses standards regarding the distribution of all participating physical Industry 4.0 components. This includes equipment and machinery (typically at field and process level), control systems, applications and network infrastructure.
The communication layer includes standards regarding integration and communication protocols as well as related mechanisms that contribute to interoperability of components. Also includes the provision of services for control of the integration processes
The information layer focuses on standards that regulate information flows, information objects and data models being used by components, services and their functions to exchange information. A common semantic base is the key requirement to ensure consistent integration of different data and achieve interoperability between components at this layer.
The function layer includes standards that cumulate common functions derived from applications, systems and components. Remote access and horizontal integration take place within the layer to ensures the integrity of the information and conditions in the process and the integration of the technical level.
The business layer focuses on standards that represent business objectives and the resulting overall processes regarding the exchanged information at the lower layers. The layer addresses regulatory and market perspectives, business models, business cases and products, business processes and regulations influencing business models.
The W3C Web Ontology Language (OWL) is a Semantic Web language designed to represent rich and complex knowledge about things, groups of things, and relations between things. (from https://www.w3.org/OWL/)
The international standard IEC 61499, addressing the topic of function blocks for industrial process measurement and control systems, was initially published in 2005. The specification of IEC 61499 defines a generic model for distributed control systems and is based on the IEC 61131 standard. (see https://en.wikipedia.org/wiki/IEC_61499 and IEC 61499 - International Electrotechnical Commission.
MQTT (MQ Telemetry Transport) is an open OASIS and ISO standard (ISO/IEC PRF 20922) lightweight, publish-subscribe network protocol that transports messages between devices. (From https://en.wikipedia.org/wiki/MQTT)
Universal Business Language (UBL) is an open library of standard electronic XML business documents for procurement and transportation such as purchase orders, invoices, transport logistics and waybills. UBL was developed by an OASIS Technical Committee with participation from a variety of industry data standards organizations. Version 2.1 was approved as an OASIS Standard in November 2013 and an ISO Standard (ISO/IEC 19845:2015) in December 2015
SensorThings API is an Open Geospatial Consortium (OGC) standard providing an open and unified framework to interconnect IoT sensing devices, data, and applications over the Web. It is an open standard addressing the syntactic interoperability and semantic interoperability of the Internet of Things. It complements the existing IoT networking protocols such CoAP, MQTT, HTTP, 6LowPAN. While the above-mentioned IoT networking protocols are addressing the ability for different IoT systems to exchange information, OGC SensorThings API is addressing the ability for different IoT systems to use and understand the exchanged information. As an OGC standard, SensorThings API also allows easy integration into existing Spatial Data Infrastructures or Geographic Information Systems.