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.
According to the 2000 US Census, 28,565 people indicated that they speak Bulgarian at home in 2000. But in the recent years the number grew significantly to over 250,000 people. Some Bulgarian Americans speak Bulgarian, especially the more recent immigrants, while others might not speak the language at all, or speak Bulgarian mixed with English to a lesser or greater extent. Some Bulgarian Americans understand Bulgarian even though they might not be able to speak the language. There are cases where older generations of Bulgarians or descendants of Bulgarian immigrants from the early part of the 20th century are fluent in the Bulgarian language as well.