Interaction between Child components through shared service [closed]

I am new to Angular 16. I wanted to design a page where a Parent contains 3 child component. Parent component is a stepper with next button. Child 1 gets user name. Child 2 gets address and child 3 shows the information with save button. I found multiple examples where a shared service is used but my difficulty is the next button is part of Parent component as a footer. So how to set the information entered on child components on each next button click.

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