A consumer products company has decided to use Salesforce for its contact center. The contact center agents need access to the following information in Service Console when a customer contacts them:

1. Customer browsing activity on its website stored on its on premise system

2. Customer interactions with sales associates at its retail stores maintained in Salesforce

3. Contact center interactions maintained in Salesforce

4. Email campaign activity to customer from its marketing systems.

What should a data architect do to fulfill these requirements with minimum development effort in Salesforce?