EFF / DFF - What is the best practice keeps attributes across too many instance?

Hi All,

EFF / DFF - What is the best practice TEST Instance to SIT Instance setups?

1. Some of them changing the DFF Attributes from Test to SIT Instance

2. Some of them keep the same Attributes across the different instance.

For Example:

Filed Name	Field Mapping - Test Environment	Field Mapping - SIT Environment	Filed Mapping - UAT Environment
Employee Code	Attribute_Char1	Attribute_Char3	Attribute_Char2
Employee Name	Attribute_Char4	Attribute_Char4	Attribute_Char4