There are four marking scales in the writing exam.
Each of these scales looks at specific aspects of your writing.
Content – answering the task, supporting your ideas
Communicative achievement – register, tone, clear ideas, conventions of the specific task type
Organisation – structure of the text, logical order, connected ideas
Language – grammar and vocabulary
Each scale is scored out of 5 so you can get a maximum of 20 marks where 3/5 basically means that you have passed this part of your writing.