Abstract

Two or more object-oriented components located in networked computers can form a distributed system to exchange information and execute methods. The most known approaches include object request broker architectures (e.g. CORBA), messaging-service architecture (e.g. based on ZMQ or JMS) or some variant of Service Oriented Architecture (e.g. SOAP). One of new approaches in the field is the OPC-UA protocol. While having common parts with all aforementioned architectures, it brings very rich and extensible information modelling capabilities, versatility and dynamic address space model, among others. This paper proposes a mapping of information model (applicable in the OPC-UA protocol) into class and object structure of an object-oriented programming language. Special attention is paid to whether given programming language is statically or dynamically typed, with examples and applications in C++ for the former case and Python for the latter. The study also covers the cases of using the proposed mapping at both server- and client-side of OPC-UA software.

Keywords

MSC

94-A99

Cite this article

@article{cai-3823,
  author  = {Piotr P. Nikiel and Krzysztof Korcyl},
  title   = {Object Mapping in the OPC-UA Protocol for Statically and Dynamically Typed Programming Languages},
  journal = {Computing and Informatics},
  volume  = {37},
  number  = {4},
  pages   = {946--968},
  year    = {2018},
  issn    = {1335-9150},
  doi     = {10.4149/cai_2018_4_946}
}
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