What have you achieved in your key area of work during the appraisal period?

This is going to depend on the area in which you work and your own personal achievements.

If you are a doctor, it could be the first patient you saved. If you are in marketing, it could be the first account sale you make. If you are in public speaking, it could be the first speech you make in front of an audience.

It truly depends on the individual and the job position.