CDR05, part of CDIL (Common Data Interchange Language), is a data format for exchanging structured information among different systems and organizations. Its primary purpose is to ensure that data is accurately and consistently interpreted across different computer systems and applications. It provides a standard set of tags and field definitions for data exchange that are used to define the meaning and format of the data exchanged. CDR05 is optimized for exchanging data between government agencies, businesses and other organizations, and supports multiple protocols, including XML and JSON. It is also used for international data exchange and supports a variety of languages. CDR05 is one of the most widely used data interchange formats and is designed to provide a secure and reliable communications link that enables the sharing of data between multiple systems.