Which aspect is NOT important when performing derivative classification?

Creating various formats for classified information is not an essential aspect of performing derivative classification. The primary focus in derivative classification is to ensure that the information derived from original classified sources and the application of classification markings is done correctly and according to established procedures.

Understanding the chain of classification authority is crucial, as it defines who has the authority to classify information and how classification decisions should be implemented. Being aware of the source material's classification level is also vital because it guides the classifier in determining how to handle the information and what classification markings are necessary for the derived material. Applying principles of derivative classification appropriately ensures that information is handled according to regulations and standards, thus safeguarding national security interests.

In contrast, while creating various formats for classified information might be necessary during the documentation process, it does not directly impact the fundamental principles of derivative classification itself. Instead, it is more of a practical task that supports the overall classification effort rather than being a key principle in the classification process.