Robert Scherer - Multi-Tenancy in CakePHP

Robert's talk was unscheduled, but ended up being a great case study for an insurance sales white-labelling solution that his company had undertaken and completed. Robert talked about multi-tenancy, and what this means for a web application, and how it relates to SaaS architecture.
Challenges to be solved included:

Differences in functionality
Workflow differences
Separation and security ...