Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviations
5 Functional structure
Annex A (informative) - Functions on level 4
and level 5
Annex B (informative) - Interrelation between
EN 15380-2 and EN 15380-4
Annex C (informative) - Code letters used to
designate detail properties
Annex D (informative) - Rules to define the
function level
Annex E (informative) - Rules to create
function names
Bibliography