# Data Designer

**Data Designer** is a visual design tool provided by ONEWEB to help users **design and manage the data model** of an application directly within **AppSpace**.

Using Data Designer, users can create and evolve application schemas without writing database scripts, making data modeling accessible in a **low‑code development environment**.

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**Purpose of Data Designer**

Data Designer is used to:

* Define the structure of application data
* Establish relationships between data entities
* Serve as the foundation for application data access and operations
* Align data design with application components and logic

It acts as the **starting point** for database‑related development in ONEWEB.

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#### **Designing Data Models**

With Data Designer, users can:

* Create data models **from scratch** by defining:
  * Entities
  * Columns and data types
  * Primary keys and relationships
* Visually model relationships using an **ER Diagram–based interface**

This visual approach makes it easier to understand and maintain complex data structures as applications grow.

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#### **Import Existing Database Schema**

In addition to creating new models, Data Designer allows users to:

* **Import existing database schemas**
* Re‑engineer or extend legacy database structures
* Align pre‑existing data models with ONEWEB application components

This capability supports modernization and integration of existing systems into the low‑code environment.

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#### **Foundation for Other Database Tools**

The data model created or imported in **Data Designer** is reused by other Database Tools in AppSpace, including:

* **SQL Builder** – to generate queries based on defined schema
* **Data Viewer** – to inspect tables and structures visually
* Application components such as Smart Forms, Pages, and Microflows

By centralizing schema design, ONEWEB ensures consistency across data access, querying, and UI integration.

***

#### **Summary**

**Data Designer** is the core tool for data modeling in ONEWEB’s low‑code platform.

It enables users to:

* Design application schemas visually
* Define relationships and structure data cleanly
* Reuse data models across multiple tools and components
* Bridge database design with application development

As the foundation of **Database Tools** in AppSpace, Data Designer plays a crucial role in building scalable, well‑structured low‑code applications.


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