Making AI predictable: The key role of JSON schema
AI is increasingly present in our applications. It can generate complex JSON, extract data from documents, or provide structured responses. But there ...
May 13, 2026
1 min read
Tutorial
Learn 4D: A New Space to Learn, Grow, and Evolve with 4D
Training has always been part of 4D’s identity. Sharing knowledge, promoting best practices, and supporting developers in building their skills has al...
January 30, 2026
1 min read
Showcase: Smart Expense Reporting With AI
You know the pain of expense reporting — not for you, for your users. The receipts piling up, the manual entry, the typos that slip through. With 4D A...
August 6, 2025
1 min read
Encryption. Authentication. & Certificate Authority Validation
In recent releases, 4D’s security capabilities have been significantly expanded, particularly in the area of certificates. This includes auto-generate...
November 14, 2024
1 min read
How to Implement Continuous Integration with 4D: A Step-by-Step Guide
In the world of software development, a new concept has appeared in recent years called "Continuous Integration." The definition we see or hear everyw...
March 21, 2024
1 min read
A class for easy handling of your sub-forms
On the forum, several requests, tips, or questions have been asked about displaying a message, an hourglass, or some interface elements in the foregro...
February 13, 2024
1 min read
ORDA – From Beginner to Expert
ORDA, which stands for Object Relational Data Access, is a method of accessing data that combines the advantages of object-oriented programming with t...
March 6, 2023
1 min read
4D for Mobile Tutorial – Create actions
Actions allow users to interact with the application to change the customer's address, add a new contact and modify a picture. In the 4D language, an...
February 15, 2023
1 min read
4D for Mobile Tutorial – Include relations
The data of your application are linked together by two types of relationship: Many to One or One to Many. In this blog post, we will show you how to...
February 13, 2023
1 min read
4D for Mobile Tutorial – Using Formatters
A data formatter allows you to map a data type from your database to a specific display on the mobile side. For example, you can define a date, percen...
February 8, 2023
1 min read