Logical Data Structures (LDS) for Data Modeling

I've been recently introduced to the LDS methodology for data modeling by Peter O'Kelly, an analyst at Burton Group. So far, I am intrigued by the approaches of John Carlis and Joseph Maguire in their book, Mastering Data Modeling: A User-Driven Approach. Although you can gain some information from their website logicaldatastructures.com, if you are interested in this methodology the book is a must.

To date, I have been most impressed at the goal of separating the physical placement of data to it's logical equivalent. It is important to note that LDS is valuable in the early stages of software development, but it does not replace the need to do similar ERD, DFD, or other such diagramming. That being said, I am still very early in my evaluation of this approach so I will post more as I gain understanding.