FAQ

Q. "What is the difference between Conceptual, Logical and Physical Data Models in the Metadata Exchange?

A. TBC

Q: "What is the difference between a data owner and a data steward?"

A: TBC

Q. "What is the best way to use the catalogue and manage my data?"

A: TBC

Q: "Why are there different colours? What do they mean?"

A:

• Red is DEPRECATED
• Yellow is DRAFT
• BLACK is FINALISED

Q: "What do the different icons mean within a Data Model?"

A: Please see table below.

Icon	Element	Description
	Data Model	A specific, versioned, group of data elements.
	Data Class	A Structured group of data elements inside a model, and which can be related to another Data Class, by inheritance or containment
	Data Element	An atomic unit of data, sometimes called an attribute, field or property.
	Data Type	A type or classification descriptor for a data element. Data Types can be sub-typed into enumerations, primitives and measurement units, which get slightly different icons.
	Primitive Type	This depends on the model, not needed when model is purely conceptual.
	Enumerated Type	This element is composed of a restricted list of enumerations.
	Enumeration	This is part of the above Enumerated Type
	Measurement Unit	This type is probably based on a primitive, but which represents a common measurement unit.
	Business Rules	A.K.A  validation rules, these can be attached to elements or to relationships. mostly we use regex or groovy code as a definition, but could be OCL or QVT type constraint.
	Assets	These could be imported files, such as csv or XML files describing the model.
	Deprecated Item.	Items which are out of date and have been/or will be replaced.