quartz/content/notes/conceptual-vs-ipmlementation-models.md

title	tags
conceptual-vs-ipmlementation-models	info201

Models like ERDs are used to represent a high level conceptual overview of a system, or to as a lower level specification that can drive the implementation of the database.

** Conceptual

• Abstract/big-picture
• Useful in inital design stages and for communication

** Implementation

• Concrete/detailed
• Useful in documenting and specifying structure (for devs etc)
• Should be detailed and specific enough to allow a dev to implement it without having to guess at details
• Should be tailored to the specific implementation technologies or systems