 . This is a good technique for an expert audience. They already understand data modeling and want you to quickly get to the important points. With slides you can abridge a model, suppress detail, and focus on the core. You can display diagrams, definitions, and explanation together. The slides become useful documentation.  . This is a good technique for an expert audience. They already understand data modeling and want you to quickly get to the important points. With slides you can abridge a model, suppress detail, and focus on the core. You can display diagrams, definitions, and explanation together. The slides become useful documentation. 