ÖNORM EN ISO 19109

This International Standard defines rules for creating and documenting application schemas, including principles for the definition of features. The scope of this International Standard 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.