Salesforce data flow diagrams are diagramming design standards for architects to create system diagrams and entity relationship diagrams (ERDs). These are necessary for a well-documented Salesforce org that can be easily communicated to teams throughout your organization. Salesforce Architecture is a multilayer architecture that consists of a series of layers stacked on top of one another. Users are at the top of the multilayer salesforce architecture. It can be difficult to determine which type of Salesforce data flow diagram best supports a given scenario, what types of data can and cannot be shown in various diagrams, and which diagrams best communicate with multiple stakeholders.