The industrial confidence indicator sums up manufacturing sentiment in the EU.
It belongs to the EU Business and Consumer Surveys programme, the EU system that asks firms and households matching questions.
The programme began with an industry survey in 1962.
DG ECFIN, the European Commission economics department, runs it.
It polls about 38,000 manufacturers in 27 EU countries plus 5 candidate countries, drawing about 30,000 replies.
It records opinions on factory activity, not measured output, and tracks year-on-year growth in industrial production as its reference.