Zope is a free, open source web application platform used for building high-performance, dynamic web sites. The Zope architecture competes in the web application server market against products such as Cold Fusion, Silverstream, Netscape Application Server, and the like. These products are aimed at systems programmers and relational databases. Zope, however, contains a powerful and simple scripting object model and high-performance, integrated object database. Thus the term "platform". Zope is divided into a number of systems, each described below. First, the Z Publisher provides object publishing that integrates with common web servers using a number of protocols, such as Zope's Persistent CGI. The Z Framework contains the foundation for the environment and builtin objects such as folders, documents, and images. The Z Template system provides dynamic page generation. The Z Object Database gives an advanced storage system that integrates tightly with Zope's web object model. Finally, Z SQL Methods and Z Database Adapters provide object-relational integration of data in popular SQL servers