PLATFORM - Customization (Windows) > Customizing the Metamodel > Managing the Metamodel > Metamodel Extensions and Modifications > Precautions Concerning Metamodel Extensions
Precautions Concerning Metamodel Extensions
Certain precautions must be taken when customizing the metamodel:
• Always work in a test environment. Remember that modification or deletion of a metamodel concept (MetaClass/MetaAttribute) will affect all data linked to this concept.
• Create a "Super User" with administration rights and rights to modify HOPEX data.