Usability testing is the measurement of ease of use of a product or piece of software. In contrast, usability engineering (UE) is the research and design process that ensures a product with good usability. Usability is a non-functional requirement.
I think in modern world you can associate with only one thing, but it's not the best choice. Bulgarians speak Slavic language as mother tongue, but also many of us speak a Germanic language (English). We have always been part of the Mediterranean world and are pred.Pontid in race, a Med subtype. think in modern world you can associate with only one thing, but it's not the best choice. Bulgarians speak Slavic language as mother tongue, but also many of us speak a Germanic language (English). We have always been part of the Mediterranean world and are pred.
Most Bulgarians live in Bulgaria, where they number around 6 million, constituting 85% of the population. There are significant Bulgarian minorities in Serbia, Turkey, Albania, Romania (Banat Bulgarians), as well as in Ukraine and Moldova (see Bessarabian Bulgarians). Many Bulgarians also live in the diaspora, which is formed by representatives and descendants of the old (before 1989) and new (after 1989) emigration.