Abstract: Techniques to instrument computer applications to receive run-time telemetry, and to perform analysis on collected telemetry are described. Telemetry instrumentation is injected into an application via an application migration tool. The migration tool generates source code corresponding to a target computing architecture. During the generation of source code, the migration tool injects code capable of sensing specified events and/or event categories and reporting telemetry to a data store. The data store may be queried and/or accessed to perform analysis to detect suboptimal instrumentation and/or application errors. Use cases may include the detection of performance, health, security and usability issues.

Abstract: A transformation application may transform source code into transformed code using extensibility libraries. The transformation application may receive an extensibility library and the source code. The extensibility library may include one or more transformation directives that specify a business semantic preserving transform. Accordingly, the transformation application may transform a source application into a transformed application using the business semantic preserving transform. The business semantic preserving transform may change one or more original architectural classes of the source application potentially spanning multiple tiers or devices into one or more transformed architectural classes of the transformed application, in which the one or more transformed architectural classes are different from the one or more original architectural classes.