Abrief, "first step" presentation of a work to be completed is called

I believe the answer is: Draft

Draft is a rough planning that we made before putting any specification on what we want to do for the presentation. In the draft, we would write the 'big picture' things that we wish to achieve without having to put a specified plan on how to achieve that 'big picture' goals.

ń, wǒ shuō yīngyǔ, dàn wǒ huì shuō qítā yǔyán, rú xībānyá yǔ fǎyǔ yìdàlì yǔ hé pǔtōnghuà, suǒyǐ bùyào pànduàn, dànshì