Ernst & Young signed a working agreement with Accounting and Auditing Organization for Islamic Financial Institutions ( AAOIFI ) to assist in Sharia certification of Core Banking Systems (CBS) used by Islamic banks. On the back of this mandate, Ernst & Young is launching its new Advisory Solution, CBS Sharia Assessment, to assist international and regional technology firms. The certification programme will assess CBS services to ensure that they conform to the approved global Sharia and accounting standards.