1 BOJ’s XBRL Reporting Project From Pilot Stage to Actual Use May 2006 Yoshiaki Wada Financial Systems and Bank Examination Department Bank of Japan © 2006 Bank of Japan

2 Introduction of BOJ © 2006 Bank of Japan Tokyo Maebashi Fukushima Sendai Aomori Kushiro Sapporo Hakodate Akita Niigata Matsumoto Kanazawa Okayama Kobe Matsue Hiroshima Shimonoseki Kitakyushu Fukuoka Nagasaki Kumamoto Kagoshima Oita Matsuyama Kochi Takamatsu Osaka Kyoto Nagoya Shizuoka Kofu Yokohama Naha  Central Bank of Japan, established in 1882  32 branches nationwide Head Office in Tokyo

3 Introduction of BOJ © 2006 Bank of Japan ・ Banknote Issuing ・ Currency and Monetary Control ・ Settlement among Financial Institutions  Purpose and Functions ･ Price Stability ･ Sound Development of the National Economy

4 Range of FSIs covered by BOJ’s examination/monitoring © 2006 Bank of Japan about 560 FSIs (end of March 2006) Major Banks Regional Banks Shinkin Banks Foreign Banks Securities Firms, etc. Efficient data gathering is crucial!

5 Project history Preparation for the testPhase 1 of the test June 2003 July-Sept. Oct. Part 1 Part 2 Ｂａｓｉｃ research Taxonomy design Join XBRL -Japan Nov. March 2004 July Sept. Phase 3 of the test Jan July Feb Taxonomy redesign Test of VPN system On-site test Off-site test (Trial for monthly XBRL based report) © 2006 Bank of Japan Tool test Phase 2 of the test Start of Live Use Start with Monthly B/S data

6 © 2006 Bank of Japan ② D/L of latest taxonomy set ＸＢＲＬ③ data creation and validation ⑤ D/L of ＸＢＲＬ data ① U/L of latest taxonomy set FSIs ＸＢＲＬ data transfer ④ XBRL Data creation tool Current data files FSIs XBRL Data creation tool Current data files BOJ XBRL Database Current data files IP-VPN Image of data transfer using XBRL Data validation BOJ-X-Port

7 Main Features of BOJ’s XBRL Tool © 2006 Bank of Japan ・ Delivered to registered FSIs from the BOJ, and available free of charge ・ Not mandatory, but all FSIs have started using it ･ Data format conversion from EXCEL to XBRL ･ Data validation by Formula-Link ･ Data/error comment facility ･ Easy operation 1. Basic Functions 2. Important!

8 Business flow © 2006 Bank of Japan Report deadline day XX+1 X+2~4 X+5X+6 Preparation of data U/L Data U/L and validation within DB Data processing within DB Data release for users Data validation by XBRL, prior to data submission Days Error collection Reduction of post validation cost

9 DEMO © 2006 Bank of Japan 9

10 Next step © 2006 Bank of Japan  Expansion of scope of report  Development of new XBRL DB system  Enhancement of efficiency of taxonomy management

11 BOJ’s XBRL Seminar on Dec. 13th 2005 © 2006 Bank of Japan

12 For further information, contact © 2006 Bank of Japan 11

13 Thank you for listening. © 2006 Bank of Japan 12