1. /informationService/serviceCategorisation - The required properties (lifeCycle, geospatialCategorisation) are missing.
2. /informationService/generalDescription - The required properties (accessAndUseConditions, concepts) are missing.
3. /informationService/technicalDescription - The required properties (technicalConstraint) are missing.
4. /informationService/references - The required properties (implementedStandard) are missing.