BookSystems started in 1989 to provide library automation software for churches and has since developed their web-based system Atriuum. Atriuum was launched in 2004 and now has over 10,000 customers. It provides a customizable and easy-to-use administrative interface along with a versatile online public access catalog. Atriuum offers strong customer support and allows for integration with other platforms. However, some add-on modules and hosting requirements can increase costs.