The Service Map widget is specifically designed for dashboards to visualize the dependencies and connections between your services. It provides a high-level overview of your application's architecture, showing how services communicate with each other and helping to quickly identify upstream or downstream issues. This widget directly addresses the need to understand data flow and service dependencies.

A. The Service Summary widget displays key performance indicators (requests, errors, latency) for a single, specific service, not the relationships between multiple services.

C. "Service Network Widget" is not an official Datadog widget name. While the Network page shows service connections, this is not a dashboard widget.

D. "Service Architecture Widget" is not an official Datadog widget name. The Service Map is the primary tool for visualizing service architecture.

1. Datadog Documentation, "Dashboards > Widget Library > Service Map": "The Service Map widget displays the connections between services based on their dependencies. Use this widget to get a high-level view of your application architecture."