Why We Chose a Control-Based UI Architecture — And Why You Should Too

On a new project, the UI is often where arguments start. Requirements keep changing, and the UI takes the hit every time.

You’re stuck balancing:

• Quality vs. Performance
• Rapid Application Development (RAD) vs. Flexibility
• Cost vs. Risk

Third-party control libraries speed things up, but they come with drawbacks:

• Performance bottlenecks
• Privacy and security risks
• Lack of flexibility
• Unpredictable behavior and unintended consequences

Building custom controls for every project, on the other hand, means reinventing the wheel each time. Productivity, RAD and cost all suffer.

That’s exactly why we created our internal UI control library. It gives us a good balance of speed, flexibility, consistency and maintainability.

Why Build an Internal UI Control Library?

A shared library of reusable UI controls makes developers more productive and gives users a better experience. It is the basis for a development process that is fast and holds up over time.

Here is what that means in practice.

What Is a “Control”?

A control is a modular, business-logic-agnostic UI component that is:

• Standalone
• Reusable
• Easily configurable

Dropdowns, date pickers, tables, checkboxes and search bars are all controls. Using them simplifies UI work, keeps screens consistent and cuts duplicate code.

1. Reusability & Flexibility

Our controls are:

• Independent of business logic
• Equipped with customizable options
• Usable across all our applications

Instead of recreating basic UI elements for each project, we reuse from our shared library. This ensures that a change in one control (say a dropdown enhancement) reflects across every application that uses it. That saves time and reduces maintenance.

2. Time & Cost Efficiency

Reusable controls save both time and money.

For example:
Need a user listing page? Just plug in our TableControl, pass in the column schema and user data, and it renders a full interactive table straight away.

Nobody rebuilds core UI features again and again. It also keeps patterns uniform across the application, which shortens QA cycles and onboarding for new developers.

As new requirements emerge, we either extend existing controls or inherit and override base functionality, enabling fast, modular development.

3. Consistent UI/UX

Good user experience depends on consistency.

By using the same controls throughout applications:

• Visual consistency is maintained
• UX patterns remain predictable
• Accessibility and standards compliance becomes simpler

You implement UX best practices once, in the control, and every application that uses it benefits.

4. High Maintainability

Code maintainability is a top concern, especially for long-lived applications. With a control-based architecture:

• You update logic in one place
• Fix bugs once and deploy universally
• Implement new features by enhancing a single control

Example: Need to add column filters to all data grids? Update the grid control, and every implementation gets the change automatically.

This component-level encapsulation keeps technical debt down.

The Bottom Line

A control-based UI approach lets your development team build highly interactive, cost-effective, and easily maintainable applications. It makes collaboration easier, enforces standards and shortens the development cycle.

Our aim is software that stays easy to change as it grows, and our internal UI control library is a big step toward that.