Don't neglect the data! data modeling for interoperable systems
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The document discusses data modeling for interoperability in systems integration, emphasizing the importance of formal approaches and rigorous processes to achieve semantic interoperability. It defines key concepts such as integrability and interoperation and outlines requirements for an effective system of systems data model. The document also introduces RTI's products and services aimed at facilitating data-centric integration solutions for disparate systems.
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for Semantic
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many different
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Data Modeling Process
Structure
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Rigorous and Formal [n]
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Don't neglect the data! data modeling for interoperable systems
- 1. Your systems. Working as one. Don’t Neglect the Data! Data Modeling for Interoperable Systems Lacey Rae Trebaol 20 March 2013
- 2. Context
- 3. Topics • Systems, Integration, and Interoperability • Data Modeling for Interoperable Systems • RTI Products and Services • Q&A
- 4. Systems
- 5. Systems
- 6. Systems
- 7. Systems
- 8. Systems
- 9. Systems
- 10. The process of linking together different computing systems and software applications physically or functionally, to act as a coordinated whole. Integration
- 11. Integration
- 12. Integratability is the ability for some combination of systems to come together and form, coordinate, or blend into a functioning or unified whole. Integratability
- 13. The setup of components and methods to make two or more systems work together as a combined system. Interoperation
- 14. Interoperation
- 15. Interoperation
- 16. A system of systems is a collection of task-oriented or dedicated systems that pool their resources and capabilities together to create a new, more complex system which offers more functionality and performance than simply the sum of the constituent systems. System of Systems
- 17. Interoperability is the ability for systems, units, or forces to provide services to and accept services from other systems, units, or forces, and to use the services so exchanged to enable them to operate effectively together. Interoperability
- 18. Levels of Conceptual Interoperability
- 19. Technical Interoperability доброе утро • Requires おはよ – Communications う Infrastructure established • Result – Bits & Bytes are exchanged in an unambiguous manner • Non-Functional Need Met – Replaceability Interchangeability
- 20. Syntactic Interoperability What was her temperature? • Requires – Communications Infrastructure established 37.2 – Common structure or common data format for exchanging information Get the • Result warming blankets. – Bits/Bytes and the Structure of Data are exchanged in an unambiguous manner • Non-Functional Need Met – Interchangeability and Integratability
- 21. Semantic Interoperability The apple is orange and • Required yellow. – Communications What does that Infrastructure and Common Data Format are established have to do with her surgery? – Common information model is defined for exchanging the Oh! I meaning of information thought we • Result were talking – Bits/Bytes and the structure about food. of data are exchanged in an She didn’t unambiguous manner need – Content of the information surgery. exchanged is unambiguously defined • Non-Functional Need Met – Actual, high-level Interoperability
- 22. Data Modeling for Interoperable Systems
- 23. A model is anything used in any way to represent something else Model
- 24. A data model is a representation that describes the data about the things that exist in your domain Data Model
- 25. Systems of Systems are Different [n]sets of requirements + many things to the requirement express for Semantic Interoperability many different representations of [n] types of those expressions systems System to achieve interoperability of Systems
- 26. The SOS Data Model Shall… 1. Meet the requirements of all of the constituent systems 2. Support the overarching requirement for Semantic Interoperability 3. Allow for changes to be made to the model without requiring changes to the existing system and application interfaces that use it 1. 2. 3. Formal Rigorous Formal Process Language Documentation We Need A Formal Approach!
- 27. Formal Language for Data Modeling • Similar to structured, rigorous Transformation Rules programming Formation languages Alphabet Rules • Ambiguity is not acceptable Formal Language – Syntax – Semantics
- 28. Semantics, Ambiguity, and Language Natural Language Representation Formal Language Representation • A pair of shoes that Claire Pc = $1500... wants costs 1500 dollars. ì $1500 ´ 1+ 0.0825 ( ) ï ï $1, 623.75 She waits until the shoes go Pc = í or = or on sale. She can spend 450 ï $1500 $1, 500.00 ï î dollars, including 8.25% tax. t = tbuy when P £ $450 On Monday, the shoe store ì discounts everything by ï $811.88 50%. Each day an item is not @t = 1, P = í Pc ´ (1- 0.5) = or ï $750.00 sold, it is discounted î another 25%. How soon can ì ï Claire buy her shoes? @t ³ 2, P = í é Pc ´ (1- 0.5)ù ´ é( t -1) ´ 0.75ù = ... ë û ë û ï î
- 29. Documentation Methodology • Documenting only your messages is insufficient • Documentation doesn’t end at the data model – Your system – Key decisions – Context
- 30. Formal Process • Mandates are insufficient with so many stakeholders • Can’t dictate everything, Elements must accommodate Atomic Elements of many things Meaning • SOS DM needs to enforce rigorous well defined processes, not mandate messages
- 31. Putting the Pieces Together Data Modeling Process Structure Things to Model from Behavior Data Model System A Context representation A representation A per a representation Rigorous and Formal [n] Approach
- 32. Data Centric Integration Solution • Technical Interoperability Legacy System A New System B – Infrastructure & Protocol Mediation Mediation • Syntactic Interoperability – Common Data Structure Mediation • Semantic Interoperability – Common Data Future System C Definition
- 33. RTI Products and Services
- 34. RTI’s Data Centric Integration Solution Connext DDS Professional • Connext DDS – Wire Disparate Real-Time Apps Apps/Systems Interoperability – Xtypes Messaging Integrator • Connext Integrator – Mediation DDS-RTPS Wire Interoperability • Future Evolutions – More powerful Administration Recording – More flexible Monitoring Replay – More systems. System Viz Logging Working as 1. Tools
- 35. Q&A
- 36. Download Your systems. Working as one. Connext Free Trial NOW www.rti.com/downloads