mock-up [mock-ups](scale or full-scale model of something) noun [UK: ˈmɒk ʌp] [US: ˈmɒk ʌp]
prototype [prototypes](original form or object which is a basis for other forms or objects) noun [UK: ˈprəʊ.tə.taɪp] [US: ˈproʊ.tə.taɪp]This is a prototype. = Este es un prototipo.
standard [standards](level of quality) noun [UK: ˈstæn.dəd] [US: ˈstæn.dərd]