Key legal question
Whether the signed installment agreement constitutes a provisional debt enforcement title under Art. 82 SchKG.
Extracted holding
Yes. The agreement shows an unconditional obligation to pay a determinable sum in instalments, and the debtor's signature confirms the acknowledgment of debt.
Extracted reasoning
The contract states the total amount, monthly instalments, due dates, and acceleration upon default. Under the principle of true intent, the exact legal label is irrelevant if the parties actually agreed on payment for fittings and related work.