Creating an architecture diagram typically occurs during the planning phase of a Salesforce project. In this phase, the consultant outlines the system architecture and defines how Salesforce will interact with other systems, integrations, and data flows. This diagram is essential for ensuring that the system design meets business requirements and aligns with technical considerations before moving into the execution phase.
During the Initiate phase, high-level planning and goal setting occur, while the Execute phase focuses on actual implementation and configuration.
Salesforce Documentation References:
* Salesforce Project Management Lifecycle
* System Architecture Planning

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