Thanks to Tamzin Oscroft for this article!
RDA is a data collection framework, driven from the command line,
which can be used to gather diagnostic information related to Oracle
products and their environments. This data is used to assist in problem
diagnosis. Full information on RDA is available in Remote Diagnostic Agent (RDA) – Getting Started (DocID 314422.1).
Remote Diagnostic Agent (RDA) 8.14 contains a remodeled and improved
Coherence module, as well as improved collections for Oracle Identity
Manager, Enterprise Manager 13c, and Business Intelligence. The Health
Check Validation Engine (HCVE) rulesets have been updated to incorporate
the most recent HP patches, as well as to recognize Windows SBS2011.
Complete details for this release are available in RDA Release Notes (Doc ID 414970.1).
This release of RDA is bundled with the 2.11.30 release of Diagnostic
Assistant (DA). The DA tool is a command line interface framework
designed to simplify and standardize the end user’s experience with
various diagnostic tools, providing a common lightweight extensible
interface to multiple collection tools (ADR, RDA, OCM, Explorer, etc) .
DA packages can also work with Oracle applications (JDE EnterpriseOne,
Siebel, PeopleSoft) as verifiers, providing a basic Java interface to
facilitate the user’s data collection.
For more information about DA functionalities, refer to Diagnostic Assistant: Information Center (Doc ID 201804.2)