Connectivity Framework Annex B : Assessment Template : OPC-UA
B . 6.4 Functional Viewpoint
Data Security ( Section 4.1.11 )
API ( Section 4.1.12 )
Governance ( Section 4.1.13 )
Does it provide a data object security model ? Summarize the salient aspects .
OPC-UA authenticates clients using either a username / password , or a PKI X509 certificate , or a WS-SecurityToken .
Servers may support fine-grained access control to individual variable and operations . Is there a standard API ? Which programming languages is it available for ?
OPC-UA is a reference architecture specification . A typical user is expected to use software tools to integrate devices adhering to the OPC-UA specification . There is no expectation of software development , and therefore no need for standardized APIs .
Does it standardize the mechanisms for configuration , administration , and monitoring ? Summarize the salient aspects .
OPC-UA provides standardized means for configuring and administering the data types , information models , and security . Monitoring of OPC-UA servers is implementation specific , but can be offered and discovered via standardized OPC-UA mechanisms .
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