🧩 What Counts as a Software Defect?

Under Czech law, defects may be:

• Functional – fails to meet agreed features,

• Legal – copyright or ownership issues,

• Documentation-related – missing manuals or instructions.

Common defects include:

• bugs, crashes,

• feature mismatch,

• incomplete delivery.

🚫 What’s Not a Defect?

• subjective dissatisfaction,

• expecting more than agreed,

• vague claims like “it feels wrong”.

If it wasn’t clearly agreed, it’s not a defect.

📜 How to File a Valid Complaint?

1. In writing (email, post, client portal),

2. Clearly describe the issue and reference the contract,

3. Attach evidence (screenshots, error logs),

4. Set a deadline for fixing (7–14 days),

5. Avoid immediate termination, unless the defect is severe.

💡 Developer Tips

• Use acceptance protocols per milestone.

• Save all communication and deliverables.

• Define in contract what is and isn’t a defect.

🧱 Real Case

Client claimed the UI was “unintuitive”.
No design brief existed. Developer followed standard layout.
Court ruled the complaint was too vague to be valid – no right to claim refund or fix.