https://www.ibm.com/docs/en/ims/15.1.0?topic=checker-ims-parameter-syntax-panel
IMS 15 - System definition - IMS Parameter Syntax Checker panel
On the IMS Parameter Syntax Checker panel in the IMS Syntax Checker, you select which release of IMS the Syntax Checker should use.
syntax checkerims15systemdefinition
https://www.ibm.com/docs/en/ims/15.3.0?topic=considerations-syntax-checker-coexistence
IMS 15.3 - Release planning - Syntax Checker coexistence considerations
The IMS 15 Syntax Checker supports IMS Version 13, IMS 14, and IMS 15.
15 3release planningsyntax checkerimscoexistence
https://www.ibm.com/docs/en/ims/15.3.0?topic=panel-syntax-checker-error-checking
IMS 15.3 - System definition - Syntax Checker error checking
After modifying the member, press the Enter key without making any other modifications. Syntax value checking is performed.
15 3syntax checkerimssystemdefinition
https://www.yamlchecker.org/
YAML Checker & Syntax Validator - Ultimate Tool for YAML Validation Online
YAML Checker is an easy-to-use online tool for validating and formatting YAML files. Ensure your YAML data is accurate and well-organized with real-time error...
yamlcheckersyntaxvalidatorultimate