⚖️ What the Law Says

Under Czech Civil Code, a client may terminate a work contract if:

• the developer materially breaches the agreement,

• the software has serious defects,

• there’s unjustified delay,

• or it’s clear the software won’t be properly delivered.

Mere dissatisfaction or “changed opinion” is not sufficient.

🧪 What Is a “Defect” in Software?

It can be:

• technical (bugs, crashes),

• functional (missing promised features),

• formal (lack of documentation).

But not:

• client expected more than specified,

• features were vague or undefined,

• subjective opinion about design or UX.

🔍 How Can a Developer Defend Themselves?

By ensuring:

• a detailed written specification,

• signed delivery logs and documentation,

• communication is in writing,

• and formal responses to complaints are recorded.

This protects against unjustified termination.

📌 How Can a Client Proceed?

If there are defects:

• file a written complaint,

• define the issue clearly,

• set a deadline for correction,

• only then consider written termination.

🧱 Real Case

A client terminated a software contract, claiming it “wasn’t intuitive”.
The agreement said nothing about UI/UX.
Developer proved all specified features were delivered.
Court ruled the termination unjustified – and full payment was required.