1 Introduction...................................................................................................................... 8 | |
1.1 |
Purpose............................................................................................................................... 9 |
1.2 |
Scope.................................................................................................................................. 9 |
1.3 |
Summary........................................................................................................................... 10 |
1.4 |
Structure........................................................................................................................... 11 |
1.5 |
Audience........................................................................................................................... 12 |
1.6 |
Use................................................................................................................................... 12 |
1.7 |
Relationship with Other IIC Documents.............................................................................. 12 |
2 Connectivity Framework................................................................................................. 14 | ||
2.1 |
IIoT Connectivity Stack Model............................................................................................ 14 |
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2.2 |
Architectural Role.............................................................................................................. 16 |
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2.3 |
Key Architectural Qualities................................................................................................ 17 |
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2.3.1 |
Performance...................................................................................................................... 17 |
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2.3.2 |
Scalability........................................................................................................................... 18 |
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2.3.3 |
Reliability........................................................................................................................... 18 |
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2.3.4 |
Resilience........................................................................................................................... 18 |
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2.3.5 |
Security.............................................................................................................................. 18 |
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2.3.6 |
Longevity............................................................................................................................ 19 |
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2.3.7 |
Integration and interoperability........................................................................................ 20 |
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2.3.8 |
Operation........................................................................................................................... 20 |
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2.3.9 |
Safety................................................................................................................................. 20 |
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3 Connectivity Reference Architecture............................................................................... 21 | |
3.1 |
IIoT Connectivity Challenge................................................................................................ 21 |
3.2 |
Connectivity Core Standards.............................................................................................. 22 |
3.3 |
Core Gateways.................................................................................................................. 23 |
3.4 |
Core Standards Criteria...................................................................................................... 25 |
4 Connectivity Framework Layer........................................................................................ 27 | ||
4.1 |
Core Functions................................................................................................................... 27 |
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4.1.1 |
Data Resource Model........................................................................................................ 28 |
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4.1.2 |
ID and Addressing.............................................................................................................. 28 |
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4.1.3 |
Data Type System.............................................................................................................. 28 |
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4.1.4 |
Data Resource Lifecycle( CRUD)........................................................................................ 29 |
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4.1.5 |
State Management............................................................................................................ 29 |
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4.1.6 |
Publish-Subscribe.............................................................................................................. 29 |
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4.1.7 |
Request-Reply.................................................................................................................... 30 |
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4.1.8 |
Discovery........................................................................................................................... 30 |
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4.1.9 |
Exception Handling............................................................................................................ 30 |
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4.1.10 |
Data Quality of Service( QoS)............................................................................................ 30 |
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4.1.11 |
Data Security...................................................................................................................... 31 |
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4.1.12 |
API...................................................................................................................................... 32 |
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4.1.13 |
Governance........................................................................................................................ 32 |
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4.2 |
Typical Considerations....................................................................................................... 33 |
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4.2.1 |
System Architecture Considerations................................................................................. 33 |
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