What’s the difference between a necessity test and a balancing test?

What’s the difference between a necessity test and a balancing test?

The three key stages of a Legitimate Interest Assessment are:
1. Identify a Legitimate Interest i.e. what is the purpose of the processing
2. Carry out a Necessity test i.e. state why the processing of the data is necessary (and that another less intrusive option is not available)
3. Carry out a balancing test i.e. balancing of the rights and freedoms of the individual’s data which will be processed