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Low-Code Application Development with Appian

You're reading from   Low-Code Application Development with Appian The practitioner's guide to high-speed business automation at enterprise scale using Appian

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Product type Paperback
Published in Apr 2022
Publisher Packt
ISBN-13 9781800205628
Length 462 pages
Edition 1st Edition
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Author (1):
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Stefan Helzle Stefan Helzle
Author Profile Icon Stefan Helzle
Stefan Helzle
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Table of Contents (22) Chapters Close

Preface 1. Section 1: No-Code with Appian Quick Apps
2. Chapter 1: Creating an Appian Quick App FREE CHAPTER 3. Chapter 2: Features and Limitations of Appian Quick Apps 4. Chapter 3: Building Blocks of Appian Quick Apps 5. Chapter 4: The Use Cases for Appian Quick Apps 6. Section 2: A Software Project with Appian 7. Chapter 5: Understanding the Business Context 8. Chapter 6: Understanding Business Data in Appian Projects 9. Chapter 7: Understanding Business Processes in Appian Projects 10. Chapter 8: Understanding UX Discovery and the UI in Appian Projects 11. Section 3: Implementing Software
12. Chapter 9: Modeling Business Data with Appian Records 13. Chapter 10: Modeling Business Processes in Appian 14. Chapter 11: Creating User Interfaces in Appian 15. Chapter 12: Task Management with Appian 16. Chapter 13: Reporting and Monitoring with Appian 17. Section 4: The Code in Appian Low-Code
18. Chapter 14: Expressing Logic with Appian 19. Chapter 15: Using Web Services with Appian Integrations 20. Chapter 16: Useful Implementation Patterns in Appian 21. Other Books You May Enjoy

Adding relations

Your first draft model already shows that some entities have relations to some others. Now, we specify these relations in more detail to get an even better understanding of our business data model.

We will use the following simplified visual representation, ignoring that some relations can be mandatory or optional:

Figure 6.5 – Types of relations

One-to-one

One "A" entity relates to exactly one "B" entity.

The relation between Supplier and Account is a good example of this kind of relation. Each supplier has only one account, and each account belongs to only one supplier.

One-to-many

One "A" entity relates to one or more "B" entities.

Our model contains more than one one-to-many relation. They are Supplier-Invoice, Account-Invoice, and Supplier-Order. So, one supplier can submit many invoices and we can order many different products from a single supplier.

Many-to-many

One...

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