Itio in partes
Itio in partes (lat.) Means the "coming apart" of the different parties . In particular, the term goes back to a voting mode of the early German Reichstag for decision-making in religious matters.
The right of ition in German imperial law related to the power of the imperial estates to reject decisions of the Catholic and Protestant denominations in religious matters as well as in other factual decisions by a majority of votes in the Reichstag. In such a case, the imperial estates could be separated (Itio in partes) into two confessional bodies ( Corpus Catholicorum and Corpus Evangelicorum ), each of which voted separately. A Reichstag resolution could only come about through subsequent unification in the mutual resolutions.
The Protestant church law knows this process today. If different confessional groups come together at a synod and a resolution cannot be accepted by one of these confessional groups due to their confession, the negotiation will initially be continued separately according to confessional groups. The confessional group now has to vote internally. If there is no majority in favor of a motion, no resolution can be passed by the general synod.