OpenTelemetry and OpenTracing operate at which layer of software architecture?

OpenTelemetry and OpenTracing operate at which layer of software architecture?

• A. Presentation
• B. Application
• C. Data
• D. Kernel

Answer: (B)

OpenTelemetry and OpenTracing focus on instrumenting the code that implements the application’s logic and request handling. They provide APIs and SDKs you embed in your application to create spans, annotate them, and propagate trace context across service boundaries. This means the data they generate reflects how a request flows through the application, how components interact, and how the code executes, which is the essence of the application layer. They are not responsible for rendering user interfaces (presentation layer), nor for storing or querying data (data layer), and they aren’t OS/kernel concerns. Collectors or agents can run separately to gather and export the telemetry, but the instrumentation originates in the application layer.

OpenTelemetry and OpenTracing focus on instrumenting the code that implements the application’s logic and request handling. They provide APIs and SDKs you embed in your application to create spans, annotate them, and propagate trace context across service boundaries. This means the data they generate reflects how a request flows through the application, how components interact, and how the code executes, which is the essence of the application layer. They are not responsible for rendering user interfaces (presentation layer), nor for storing or querying data (data layer), and they aren’t OS/kernel concerns. Collectors or agents can run separately to gather and export the telemetry, but the instrumentation originates in the application layer.