ServiceNow Clean Architecture: DAL/BAL Design Pattern Explained with Live Demo

Build smarter, scalable, and maintainable ServiceNow applications using a clean architectural approach powered by design patterns!

In this video, we explore how to implement Clean Architecture in ServiceNow by applying a layered design pattern using:

- Database Access Layer (DAL) to abstract GlideRecord operations
- Business Access Layer (BAL) to centralize business logic
- Centralized Configuration Objects for flexible, reusable payloads and options
- Message Dictionaries to decouple system messages from logic

💡 This architecture separates concerns and improves code reuse, maintainability, and testability—critical for developers working on enterprise-scale ServiceNow implementations.

✅ You'll learn:

- How the DAL/BAL pattern structures your code
- How to implement each layer using Script Includes
- A step-by-step demo to create and update incidents using this design
- The benefits of this approach compared to conventional scripting

This video is ideal for ServiceNow developers, architects, and consultants who want to level up their coding practices with proven software design techniques.

📬 Interested in collaborating or exchanging ideas? Feel free to reach out at sasanka.vepakomma@gmail.com — happy to connect!

🔗 Community Article: https://www.servicenow.com/community/architect-articles/introducing-design-patterns-to-coding-practices/ta-p/2330543
💻 Code Examples: https://github.com/vsasanka/YT-SN-Challenges/tree/main/design-pattern
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Видео ServiceNow Clean Architecture: DAL/BAL Design Pattern Explained with Live Demo канала SNow Challenges