Understanding DADA2 parameters

Hi,

I am a QIIME2 user. Currently, I am making some educational content on microbiome analysis mainly focusing on QIIME2. I found it always confusing to choose DADA2 parameters. And there are a lot of questions in the qiime2 forum regarding this issue.

Based on my understanding, I have created the following two graphical representations which can be helpful in choosing DADA2 parameters. I am posting the images here, for verification of my understanding. There are a lot of experienced users here. Could you please have a look at these figures? Am I conceptually right? Do you have any suggestions?

I appreciate any suggestions you can provide.

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