translation brief (assignment),the functional appropriateness

[RevY]

Пожалуйста, помогите перевести: translation brief (assignment), the functional appropriateness

Выражение встречается в следующем контексте:
The terms introduced by the functionalists into the activity of translation, namely the translation brief (assignment), the initiator, the client and the functional appropriateness, illustrate that the focus has shifted considerably.

Заранее спасибо

[Alexander Oshis]

translation brief
Как вариант: техническое задание / задание на перевод