These slides were taken from conference presentations and have been expanded some since then. From the conference abstract:
IBM Web Experience Factory is a powerful model-based tool for developing portlets and web applications for mobile or desktop devices. Its model-based approach provides key benefits such as very rapid development and support for a multi-channel delivery. In this session we'll describe and demonstrate key practices for getting the most out of this framework, so that your team can delivery high quality code quickly, make changes easily, automate your standards and practices, build reusable services and components, support runtime customization, and optimize UI for multiple device types.
Download link: Tips for Teams Adopting IBM Web Experience Factory