1.15API-led connectivity

You'll almost certainly hear this phrase.

MuleSoft encourages avoiding gigantic point-to-point integrations:

App A → Salesforce
App B → Salesforce
App C → Salesforce
App D → Salesforce

Instead, commonly:

                 Experience API
                       ↓
                  Process API
                  ↙         ↘
       Salesforce API      ERP API
            ↓                 ↓
       Salesforce            ERP

The conventional layers are:

Experience API
     ↓
Process API
     ↓
System API

MuleSoft describes this API-led approach as separating application/process/system integration layers and emphasizing reuse, especially through System APIs.

We'll dissect this in Module 9 because interviewers love asking about it.