ISO 19109:2005

ISO 19109:2005(E) defines rules for creating and documenting application schemas, including principles for the definition of features. Its scope includes the following:

• conceptual modelling of features and their properties from a universe of discourse;
• definition of application schemas;
• use of the conceptual schema language for application schemas;
• transition from the concepts in the conceptual model to the data types in the application schema;
• integration of standardized schemas from other ISO geographic information standards with the application schema.

The following are outside the scope:

• choice of one particular conceptual schema language for application schemas;
• definition of any particular application schema;
• representation of feature types and their properties in a feature catalogue;
• representation of metadata;
• rules for mapping one application schema to another;
• implementation of the application schema in a computer environment;
• computer system and application software design;
• programming.