Table 1.

The steps of the participatory design.

Steps	Outcomes
1. Incident reporting form	Adaptation of a pre-existing form for risk management in the operating room
2. Criticalities reporting form	Form for the reporting of potential threats and near misses
3. Splitting of the form	A tool divided in two sections: (i) Critical situation detection form, (ii) Solution analysis form.
4. Addition of a third section	A tool divided in three sections: (i) Critical situation detection form, (ii) Solution analysis form, (iii) Monitoring of the solution process.
5. Electronic version of the tool	Spreadsheet with three sections: (i) Anomalies detection, (ii) Problem setting and problem solving, (iii) Solution process monitoring.
6. Tool evaluation	Evaluation based on AGREE (2003) criteria for the assessment of the quality of clinical guidelines: (i) clarity of the overall objective, (ii) the target population, (iii) the stakeholder involvement, (iv) tool applicability, (v) resource implications.