The Requirements Bill of Materials: A Walkthrough by Bill Lewis
Bill Lewis describes a model for application requirements based on a bill-of-materials metamodel.

Data Lineage: The Next Generation by Bill Lewis
Exploring Data Dependencies in Business Applications
Bill Lewis describes the benefits of an application development environment in which all data dependencies begin and remain clearly, precisely and explicitly defined.

Data-Driven and Agile Methods: Can We Get Along? by Bill Lewis
It is possible for data-driven principles to be reconciled with those espoused by Agile enthusiasts, and these data-driven methods are agile in their own right.

Data-Oriented Application Engineering: An Idea Whose Time Has Returned by Bill Lewis

Many-To-Many Relationships in XML Schema: Hints and Tips For the Busy E-R Modeler by Bill Lewis

Business Rules Applied by Bill Lewis