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.
Noted for its diversity, Bulgaria's landscape ranges from mountainous peaks covered in snow to valleys and lowlands giving way to the coast of the Black Sea. The Balkan Mountains cut across the central part of the country, while the Rhodope Mountains run through southern Bulgaria, along its border with Greece. The highest point in the country, located in the Rila Mountains, is Musala Mt., at 9,594 ft. (2,925 m).