Health endpoint monitoring pattern

This Azure cloud architecture pattern diagram template was created on the base of figure in the article "Health Endpoint Monitoring Pattern" from the Microsoft Developer Network (MSDN) website.
"Health Endpoint Monitoring Pattern.
Implement functional checks within an application that external tools can access through exposed endpoints at regular intervals. This pattern can help to verify that applications and services are performing correctly. ...
It is good practice—and often a business requirement—to monitor web applications, and middle-tier and shared services, to ensure that they are available and performing correctly. However, it is more difficult to monitor services running in the cloud than it is to monitor on-premises services. ...
Implement health monitoring by sending requests to an endpoint on the application. The application should perform the necessary checks, and return an indication of its status.
A health monitoring check typically combines two factors: the checks (if any) performed by the application or service in response to the request to the health verification endpoint, and analysis of the result by the tool or framework that is performing the health verification check. The response code indicates the status of the application and, optionally, any components or services it uses. The latency or response time check is performed by the monitoring tool or framework." [msdn.microsoft.com/ ru-RU/ library/ dn589789.aspx]
The Azure cloud system architecture diagram template "Health endpoint monitoring pattern" for the ConceptDraw PRO diagramming and vector drawing software is included in the Azure Architecture solutin from the Computer and Networks area of ConceptDraw Solution Park.