# Feature Tutorial: Service Graph and Service Dependencies

Maps dependency relationships between services and the resources they consume, so stakeholders can see how one incident affects the whole system.

Modern technical architectures are complex, with lots of layers and interdependencies. Because of this complexity, it can be hard for teams to fully understand the impact of an incident on a single service. 

Service Graph gives your teams a holistic view of your ecosystem without you having to draw it on the whiteboard.

Connect services to other resources they consume, and the resources that consume them. Build out the full system diagram using dependency relationships so all of your stakeholders can see how one service impacts the entire product.

Business Services place semantic meaning to your ecosystem. Your users don't need to know which backend isn't behaving correctly; they only know which "front door" application they can't access. By creating Business Services and assigning them in the Service Graph, everyone in your organization can quickly see the impact of an incident, no matter how much they know about the architecture of the services.

## Learn More

**Read more about what Service Graph provides**

* In our [blog](https://www.pagerduty.com/blog/product/introducing-dynamic-service-graph/)

**Watch the product demos**

* [Technical Service Dependencies and Suggested Service Dependencies](https://www.youtube.com/watch?v=9iFEuwcNovM)
* [Suggested Technical Service Dependencies - Impact Tab](https://www.youtube.com/watch?v=vFADPAvn1Y0)

**Check out the training modules on PDU**

* [Business Services](https://university.pagerduty.com/business-services)
* [Service Graph](https://university.pagerduty.com/service-graph)

**Watch the click-through tutorial**

* [Click through tutorial of Service Graph on YouTube](https://youtu.be/M_g_V90aDlI)
* [Click through tutorial of Business Services on YouTube](https://youtu.be/xldcZ6gS8TQ)

**Find the product documentation in our Knowledge Base**

* [Service Dependencies](/incident-management/services/service-dependencies)
* [Service Graph](/incident-management/services/service-graph)

**Using the API?**

The [endpoints](/developer/api/reference/rest/tags/create-entity-type-by-id-change-tags) are:

* [Business Services](/developer/api/reference/rest/business-services/list-business-services)
* [Service Dependencies](/developer/api/reference/rest/service-dependencies/create-service-dependency)

**Managing PagerDuty with Terraform?**

Find the latest PagerDuty Terraform Provider docs [here](https://registry.terraform.io/providers/PagerDuty/pagerduty/latest/docs). The resources are:
* pagerduty_business_service
* pagerduty_service_dependency

Find the full documentation for the PagerDuty Terraform Provider in the [Terraform Registry](https://registry.terraform.io/providers/PagerDuty/pagerduty/latest/docs)

**Service Ownership**

Interested in how PagerDuty thinks about services and service ownership? Check out our [Service Ownership Ops Guide](/ops-guides/service-ownership).