In Germany the term "Sinti und Roma" is used as the endonym for "Roma". Sinti and Roma/Roma and Sinti use two Romanes terms to describe all members of the Romanes-speaking groups in the terminology of the member associations of the Central Council of German Sinti and Roma or as "Roma and Sinti" in the terminology of the Austrian self-organisations. The members of the minority, as far as they are in possession of the citizenship of their country and are regarded as "old-established" (autochthonous), are recognized as national minority in Germany under the designation "Sinti and Roma" (1997), in Austria under "Roma and Sinti" (1993).
(c) Karola Fings/Ulrich F. Opfermann 2018
If in German RomArchive uses the term "Sinti und Roma" as an umbrella term, then in English it is "Roma". The term "Roma" is used to encompass the wide diversity of the groups covered by RomArchive: on the one hand
a) "Roma", "Sinti/Manush", "Calé", "Kaale", "Romanichals", "Boyash/Rudari";
b) Balkans: "Egyptians" and "Ashkali";
c) Eastern groups: "Dom", "Lom" and "Abdal";
and, on the other hand, groups such as "Travellers", "Yenish", and the populations designated under the administrative term "Gens du voyage", as well as persons who identify themselves as "Gypsies".
Source:
RomArchive Ethical Guidelines