Grammar and vocabulary --> whether you show control of grammar and vocabulary at B1+ level.
Discourse Management --> whether you can answer the questions intelligently and organise your thoughts while speaking so that your contribution is clear and relevant.
Pronunciation --> whether you are easily understood and make no pronunciation errors.
Interactive Communication --> whether you can keep an actual conversation going with your partner, showing that you listen and incorporate your partner's ideas and that you can negotiate towards an outcome or an arrangement.
In the document below, you will find the full assessment rubric and marking scheme.