The main focus of the teacher in designing assessments should be on

The main focus in designing assessments should be the learning outcomes, so testing measures what students were meant to achieve.

Activities are the means of learning, not the target of assessment.

Attendance records presence, not learning.

The teacher's own behaviour is not what an assessment measures.

Aligning assessment with outcomes is the core of Outcome-Based Education.

This alignment of outcomes, teaching and assessment is called constructive alignment.