References

• DCSA Information Model: Digital Shipping Standards Documentation | Downloads & PDFs | DCSA

• The Database Relational Model: A Retrospective Review and Analysis : A Historical Account and Assessment of E. F. Codd's Contribution to the Field of Database Technology

• Object-Oriented Software Construction (Book/CD-ROM) (2nd Edition): Meyer, Bertrand: 9780136291558: Amazon.com
• Statecharts: a visual formalism for complex systems

In the framework article

• Link to Impractical Domain Driven Development in the architecture for DDD, representation of state:

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1. Naur, P. 1985. Programming as theory building. Microprocessing and Microprogramming 15(5): 253–261. ↩