The anti-money laundering (AML) software market is large and complex, with many international, regional, and local providers. In a series of three recent reports, Celent profiled 45 AML transaction monitoring and watchlist screening systems provided by 28 vendors. These studies use the Celent ABCD Vendor View, which shows at a glance the relative position of vendors in the following categories: Advanced Technology, Breadth of Functionality, Customer Base (number and distribution of clients), and Depth of Client Services on two separate X/Y scales.