What is a primary feature of the ABAP Test Cockpit (ATC)?

The primary feature of the ABAP Test Cockpit (ATC) is its ability to perform holistic quality checks across applications. ATC provides a framework for static code checks that assess the quality of ABAP code in terms of performance, security, and adherence to best practices. It runs a comprehensive set of checks on the ABAP code during development and helps ensure that the code adheres to established standards before it is deployed. This proactive approach to quality control is essential in maintaining the integrity and efficiency of applications developed in ABAP.

The other options do not accurately represent the core functionality of ATC. While integration with external systems, audit logging of changes, and monitoring HANA performance are important aspects of SAP environments, they are not primary features of the ABAP Test Cockpit itself. The focus of ATC is on enhancing the quality of ABAP applications rather than handling external integrations or performance monitoring.