• Data reference period (Month)
• Geographic localization (Portugal)

• REFERENCE PERIOD:  The length of time for which data are collected, e.g. a specific day, month or year.
• ENTERPRISE:  Legal entity (natural or legal person) that is an organisational unit producing goods or services, which benefits from a certain degree of autonomy in decision-making, especially for the allocation of its current resources. An enterprise carries out one or more activities at one or more locations.

Services Confidence Indicator  is calculated according to the methodology of the EC - DG ECFIN, and corresponds to the arithmetic mean of the balances of the following questions:
- How has your business situation developed over the past 3 months? It has… 1. + improved; 2. = remained unchanged; 3. -  deteriorated.
- How has demand (turnover) for your company´s services changed over the past 3 months? It has… 1. + increased; 2. = remained unchanged; 3. -  decreased.
- How do you expect the demand (turnover) for your company´s services to change over the next 3 months? It will… 1. + increase; 2. = remain unchanged; 3. − decrease.