Official Portal - Statistics Portugal
Statistical Confidentiality

Statistical production is a process through which from information gathered (censual or sampling) from institutions or departments, individuals or collectives we produce statistics that represent an important tool for analyzing and taking decisions for the whole Society.

It is recognized that the whole decision process, in its several levels — political, economic and social —, whether individual or collective, is supported on information, including statistical information, which must be accurate, exempt and up-to-date.

However, the knowledge provided by the statistics is inseparable from the respect for confidentiality associated to information collected near Information providers, and leads to the inevitable legal appeal of "considerations of proportionality", which means that production of statistics has necessarily to operate the practical concordance and the harmonization between the information that should be of public domain and the one that should be kept under secrecy. Only in this way it can be ensured confidence in the Statistical System.

Thus, the following publication (available only in Portuguese), was prepared: