7. Glossary

DTD

According to Wikipedia, a document type definition (DTD) is a document used to describe an SGML or XML document model. The model is described as a document class grammar: grammar because it describes the position of terms in relation to each other, class because it forms a generalization of a particular domain, and document because it can be formed with a complete text.

Plateforme multiface/Multi-sided platform

"The term "platform" has become increasingly popular with today's executives: many companies claim to be "one" or "the platform" in their respective industries.

This comes from the realization that platforms, and in particular multi-sided platforms (MSPs), are those that serve the needs of interdependent constituents:

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