CMS stores data in a CMS database that is divided into 52 different tables. A table is an array of columns and rows that stores data for a type of ACD element (split/skill, agent, trunk, trunk group, VDN, vector, call work code, forecasting, agent trace, call records, or exceptions) and for a specific time frame (for the current intrahour interval, for past intrahour intervals, for past day, summarized by day, and so on). If data in a table is in real time, data changes second by second.