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.
Bulgaria is a country situated in south-eastern Europe, bordering Romania, Serbia, the Republic of Macedonia, Greece, Turkey and the Black Sea. Its northern border with Romania follows the Danube river until Silistra.he land area of Bulgaria is 110,550 square kilometres (42,680 sq mi), slightly larger than that of Iceland or the U.S. state of Tennessee. The country is situated on the west coast of the Black Sea, with Romania to the north, Greece and Turkey to the south, and Serbia and Macedonia to the west.