A function by which a machine can test its own operation. / The process of testing oneself in order to review material that one has learned.

plural of self-test

plural of self-conceit

plural of self-worth

A review of one's own work or progress.

plural of self-review

The sales practice of talking to a customer about their needs and then proposing a (possibly bespoke) solution that meets them.

plural of self-perpetuation

The quality of being self-willed.

In a self-willed manner.