Paul Stevens joined Barclays Global Investors as the head of the global technology department. He will oversee BGIs worldwide information technology activities, including global technology applications and infrastructure, strategic technology projects and the firms Internet initiatives. He will report to Patricia Dunn, chairwoman of the firm. He had been head of systems at J.P. Morgan Asset Management Services. In a consolidation, James S. Mazarakis, managing director and head of systems for the private banking area at the firm, will now oversee both the systems in private banking and investment management in North America.