R5 will bring increased granularity as well as flexibility with a large data repository, rather than the standard and optional reports under R4. To allow for this release to support the long term, R5 introduces attributes that can be associated with multiple metrics allowing to drill down or roll up reporting with ease.   

The following attributes are included under R5 to create additional classification and ease of summarization including Access Type, Access Method, Data Type, Section Type and YOP (Year of Publication).

For more on the new metrics under R5, please see COUNTER Changes from Release 4.