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  • g n s T o C o n t r o l n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p N o S e l f R e f e r e n c e x n b s p n b s p n b s p N e w w h e r e r u l e a d d e d n b s p n b s p n b s p n b s p I f c R e l A s s i g n s T o G r o u p n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p N o S e l f R e f e r e n c e x n b s p n b s p n b s p N e w w h e r e r u l e a d d e d n b s p n b s p n b s p n b s p I f c R e l A s s i g n s T o P r o c e s s n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p R e l a t i n g P r o c e s s n b s p x n b s p n b s p D a t a t y p e c h a n g e d t o I f c P r o c e s s S e l e c t t o a l l o w f o r I f c P r o c e s s a n d I f c T y p e P r o c e s s x n b s p n b s p n b s p I f c R e l A s s i g n s T o P r o d u c t n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p R e l a t i n g P r o d u c t n b s p x n b s p n b s p D a t a t y p e c h a n g e d t o I f c P r o d u c t S e l e c t t o a l l o w f o r I f c P r o d u c t a n d I f c T y p e P r o d u c t x n b s p n b s p n b s p n b s p N o S e l f R e f e r e n c e x n b s p n b s p n b s p N e w w h e r e r u l e a d d e d n b s p n b s p n b s p n b s p I f c R e l A s s i g n s T o R e s o u r c e n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p R e l a t i n g R e s o u r c e n b s p x n b s p n b s p D a t a t y p e c h a n g e d t o I f c R e s o u r c e S e l e c t t o a l l o w f o r I f c R e s o u r c e a n d I f c T y p e R e s o u r c e x n b s p n b s p n b s p n b s p N o S e l f R e f e r e n c e x n b s p n b s p n b s p N e w w h e r e r u l e a d d e d n b s p n b s p n b s p n b s p I f c R e l D e c l a r e s x n b s p n b s p n b s p N e w o b j e c t i f i e d r e l a t i o n s h i p t o a s s i g n o b j e c t s o r p r o p e r t i e s t o a p r o j e c t a n d p r o j e c t l i b r a r y x n b s p n b s p n b s p I f c R e l D e c o m p o s e s n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p R e l a t i n g O b j e c t n b s p n b s p x n b s p A t t r i b u t e d e m o t e d t o s u p t y p e s I f c R e l A g g r e g a t e s a n d I f c R e l N e s t s n b s p n b s p n b s p n b s p n b s p R e l a t e d O b j e c t s n b s p n b s p x n b s p A t t r i b u t e d e m o t e d t o s u p t y p e s I f c R e l A g g r e g a t e s a n d I f c R e l N e s t s n b s p n b s p n b s p n b s p I f c R e l D e f i n e s n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p R e l a t e d O b j e c t s n b s p x n b s p n b s p R e l a t i o n s h i p d e l e t e d h e r d e m o t e d t o s u b t y p e s n b s p n b s p n b s p n b s p I f c R e l D e f i n e s B y T e m p l a t e x n b s p n b s p n b s p N e w r e l a t i o n s h i p b e t w e e n a p r o p e r t y s e t t e m p l a t e a n d i n d i v i d u a l p r o p e r t y s e t s x n b s p n b s p n b s p I f c R e l D e f i n e s B y P r o p e r t i e s n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p R e l a t e d O b j e c t s x n b s p n b s p n b s p R e l a t i o n s h i p a d d e d h a s b e e n d e m o t e d f r o m s u p e r t y p e I f c R e l D e f i n e s n b s p n b s p n b s p n b s p n b s p R e l a t i n g P r o p e r t y D e f i n i t i o n n b s p x n b s p n b s p A t t r i b u t e t y p e p r o m o t e d t o s u p e r t y p e I f c O b j e c t D e f i n i t i o n n b s p n b s p n b s p n b s p I f c R e l D e f i n e s B y O b j e c t x n b s p n b s p n b s p N e w r e l a t i o n s h i p e n t i t y t o a l l o w f o r a d e e p c o p y o f a d e c o m p o s e d t y p e x n b s p n b s p n b s p I f c R e l D e f i n e s B y T y p e n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p R e l a t e d O b j e c t s x n b s p n b s p n b s p R e l a t i o n s h i p a d d e d h a s b e e n d e m o t e d f r o m s u p e r t y p e I f c R e l D e f i n e s n b s p n b s p n b s p n b s p I f c R e l N e s t s n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p R e l a t i n g O b j e c t x n b s p n b s p n b s p A t t r i b u t e d e m o t e d f r o m s u p e r t y p e i f c R e l D e c o m p o s e s c h a n g e d f r o m S E T t o L I S T n b s p n b s p n b s p n b s p n b s p R e l a t e d O b j e c t s x n b s p n b s p n b s p A t t r i b u t e d e m o t e d f r o m s u p e r t y p e i f c R e l D e c o m p o s e s c h a n g e d f r o m S E T t o L I S T n b s p n b s p n b s p n b s p I f c R e l O v e r r i d e s P r o p e r t i e s n b s p n b s p n b s p x E n t i t y h a s b e e n d e l e t e d x x n b s p n b s p I f c R e s o u r c e n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p I d e n t i f i c a t i o n x n b s p n b s p n b s p N e w a t t r i b u t e p r o m o t e d f r o m s u b t y p e I f c C o n s t r u c t i o n R e s o u r c e n b s p n b s p n b s p n b s p n b s p L o n g D e s c r i p t i o n x n b s p n b s p n b s p N e w a t t r i b u t e p r o m o t e d f r o m s u b t y p e I f c C o n s t r u c t i o n R e s o u r c e n b s p n b s p n b s p n b s p I f c R e s o u r c e S e l e c t x n b s p n b s p n b s p N e w s e l e c t t y p e t o a l l o w f o r I f c R e s o u r c e a n d I f c T y p e R e s o u r c e n b s p n b s p n b s p n b s p I f c T y p e O b j e c t n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p I f c T y p e P r o c e s s x n b s p n b s p n b s p N e w a b s t r a c t s u p e r t y p e f o r t y p e d e f i n i t i o n s f o r t a s k s e t c n b s p n b s p n b s p n b s p n b s p I N V T y p e s n b s p x n b s p n b s p I n v e r s e a t t r i b u t e n a m e h a s b e e n r e n a m e d f r o m O b j e c t T y p e O f n b s p n b s p n b s p n b s p I f c T y p e P r o d u c t n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p A p p l i c a b l e O c c u r r e n c e n b s p x n b s p n b s p D a t a t y p e c h a n g e d f r o m I f c L a b e l t o I f c I d e n t i f i e r b o t h o f t y p e S T R I N G n b s p n b s p n b s p n b s p I f c T y p e R e s o u r c e x n b s p n b s p n b s p N e w a b s t r a c t s u p e r t y p e f o r t y p e d e f i n i t i o n o f r e s o u r c e s n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p I f c C o n t r o l E x t e n s i o n n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p I f c P e r f o r m a n c e H i s t o r y n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p P r e d e f i n e d T y p e x n b s p n b s p n b s p N e w a t t r i b u t e a d d e d a t t h e e n d o f e n t i t y d e f i n i t i o n x x n b s p n b s p I f c R e l A s s o c i a t e s C o n s t r a i n t n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p I n t e n t n b s p x n b s p n b s p A t t r i b u t e m a d e o p t i o n a l x n b s p n b s p n b s p I f c T i m e S e r i e s S c h e d u l e n b s p n b s p x n b s p E n t i t y d e l e t e d r e p l a c e s b y o b j e c t i f i e d r e l a t i o n s h i p I f c R e l A s s o c i a t e s T i m e S e r i e s x x n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p I f c P r o c e s s E x t e n s i o n n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p I f c E v e n t n b s p x n b s p n b s p n b s p N e w e n t i t y x n b s p n b s p n b s p n b s p I d e n t i f i c a t i o n n b s p n b s p n b s p n b s p a t t r i b u t e n a m e E v e n t I D c h a n g e d t o I d e n t i f i c a t i o n n b s p n b s p n b s p n b s p n b s p P r e d e f i n e d T y p e n b s p n b s p x n b s p E v e n t T y p e h a s b e e n r e n a m e d t o P r e d e f i n e d T y p e n b s p n b s p n b s p n b s p I f c E v e n t T y p e x n b s p n b s p n b s p N e w e n t i t y x n b s p n b s p n b s p n b s p P r e d e f i n e d T y p e n b s p x n b s p n b s p E v e n t T y p e h a s b e e n r e n a m e d t o P r e d e f i n e d T y p e n b s p n b s p n b s p n b s p I f c E v e n t T y p e E n u m x n b s p n b s p n b s p N e w e n u m e r a t i o n n b s p n b s p n b s p n b s p I f c E v e n t T r i g g e r T y p e E n u m x n b s p n b s p n b s p N e w e n u m e r a t i o n n b s p n b s p n b s p n b s p I f c P r o c e d u r e n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p P r o c e d u r e I D n b s p n b s p x n b s p A t t r i b u t e p r o m o t e d t o I f c P r o c e s s a s I d e n t i f i c a t i o n n b s p n b s p n b s p n b s p n b s p P r e d e f i n e d T y p e n b s p n b s p x n b s p P r o c e d u r e T y p e h a s b e e n r e n a m e d t o P r e d e f i n e d T y p e n b s p n b s p n b s p n b s p n b s p W R 1 n b s p n b s p x n b s p R e s t r i c t i o n t o u s e I f c R e l N e s t s o n l y h a s b e e n r e m o v e d n b s p n b s p n b s p n b s p n b s p W R 2 n b s p n b s p x n b s p R e s t r i c t i o n t o u s e I f c R e l N e s t s o n l y h a s b e e n r e m o v e d n b s p n b s p n b s p n b s p I f c P r o c e d u r e T y p e x n b s p n b s p n b s p N e w e n t i t y x n b s p n b s p n b s p n b s p P r e d e f i n e d T y p e n b s p x n b s p n b s p P r o c e d u r e T y p e h a s b e e n r e n a m e d t o P r e d e f i n e d T y p e n b s p n b s p n b s p n b s p I f c P r o c e d u r e T y p e E n u m x n b s p n b s p n b s p N e w e n u m e r a t i o n n b s p n b s p n b s p n b s p I f c R e l A s s i g n s T a s k s n b s p n b s p x n b s p R e l a t i o n s h i p d e l e t e d u s e I f c T a s k T i m e d i r e c t l y a t I f c T a s k x x n b s p n b s p I f c R e l S e q u e n c e n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p S e q u e n c e T y p e n b s p x n b s p n b s p M a d e o p t i o n a l U S E R D E F I N E D v a l u e a d d e d x n b s p n b s p n b s p n b s p U s e r D e f i n e d S e q u e n c e T y p e x n b s p n b s p n b s p A d d e d t o s u p p o r t t h e U S E R D E F I N E D s e q u e n c e t y p e W R 2 a d d e d t o t h e e n t i t y x x n b s p n b s p n b s p T i m e L a g n b s p x n b s p n b s p D a t a t y p e i s m a d e t o I f c T a s k D u r a t i o n i n s t e a d o f I f c T i m e M e a s u r e x x n b s p n b s p I f c S c h e d u l e T i m e C o n t r o l n b s p n b s p x n b s p E n t i t y d e l e t e d u s e I f c T a s k T i m e d i r e c t l y a t I f c T a s k x x n b s p n b s p I f c T a s k n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p T a s k I d n b s p n b s p x n b s p A t t r i b u t e p r o m o t e d t o I f c P r o c e s s a s I d e n t i f i c a t i o n n b s p n b s p n b s p n b s p n b s p T a s k T i m e x n b s p n b s p n b s p N e w a t t r i b u t e l i n k t o I f c T a s k T i m e r e p l a c i n g I f c R e l A s s i g n s T a s k x x n b s p n b s p n b s p P r e d e f i n e d T y p e x n b s p n b s p n b s p P r e d e f i n e d T y p e a d d e d n b s p n b s p n b s p n b s p I f c T a s k T y p e x n b s p n b s p n b s p N e w e n t i t y x n b s p n b s p n b s p n b s p P r e d e f i n e d T y p e n b s p x n b s p n b s p T a s k T y p e h a s b e e n r e n a m e d t o P r e d e f i n e d T y p e n b s p n b s p n b s p n b s p I f c T a s k T y p e E n u m x n b s p n b s p n b s p N e w e n u m e r a t i o n n b s p n b s p n b s p n b s p I f c W o r k C a l e n d a r x n b s p n b s p n b s p N e w e n t i t y t o e n a b l e c a l e n d a r d e f i n i t i o n s f o r s c h e d u l i n g x n b s p n b s p n b s p I f c W o r k C a l e n d a r T y p e E n u m x n b s p n b s p n b s p N e w e n u m e r a t i o n t o d e

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  • Core data schemas
    boundaries are now separated when facing outer air earth water or neighboring buildings HVAC Elements The definitions of HVAC elements in regard to their system behavior segment fitting flow terminal energy conversion etc are semantically improved Examples include a space heater has been changed to be a flow terminal and to include also electric heaters a gas burner can been generalized into a fuel independent burner class etc A substantial number of documentation improvements have been made to both the semantic definitions and enumerators for many of the HVAC entity types So have e g tank type enumerators been redefined along functional definitions rather than construction definitions Diagrams have been added to illustrate port connectivity for air terminals and boilers Pipes and ducts now have specific entities to allow for parametric definitions Segments can now carry an axis representation for sweeping a material profile set Electrical Improvements have been made to support for protective devices including separation of tripping and breaker units More protective device types are supported with enhanced detail in property sets In particular curve interpolation has been added to property specification Cores and busbars have been added to cable segments Electrical distribution board types have been added in place of electrical distribution points matching the customary type occurrence pairings Electric heaters have been moved to being types of space heater rationalizing heaters by function rather than energy source Types of electric appliances have been more clearly identified as temporarily connected loads through a plug socket outlet connection Audio visual and communication appliance types are now supported separately from electrical appliance type These appliances respond to the improvements in identification of distribution systems Structural modeling and detailing elements Due to the changes to Building Elements cross section definition of columns beams and similar elements has been enhanced Section geometry and material information is now associated with building elements in the same fashion as with walls and slabs Profile information is provided already at a higher level than the geometric representation References to standards or libraries can now be added to profile definitions and a number of details in profile definitions have been enhanced e g by simpler mirroring of asymmetric profiles Structural elements for foundations can now be accompanied by type objects Type objects are also available for element components like insulations now New classes for manufacturing details such as cutouts have been added The Core Definition changes for decomposed type objects enable effective models of detailed designs Structural analysis elements The structural analysis domain model has been cleaned up and partially simplified The use of topology representations and coordinate systems has been clarified Profile and material association has been brought in line with Building Elements More flexible models of curved surface members are now available due to Geometry changes Distributed loads are now modeled in a more straight forward way This change also made it possible to provide analysis results not only at point connections but also at curve or surface items Required or provided reinforcement of

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  • l e t e d n b s p n b s p I f c S t r u c t u r e d D i m e n s i o n C a l l o u t E n t i t y d e p r e c a t e d I F C o n l y s u p p o r t s m o d e l s p a c e g e o m e t r y a n d n o t p a p e r s p a c e d i m e n s i o n a n n o t a t i o n s D e l e t e d n b s p n b s p I f c T e r m i n a t o r S y m b o l E n t i t y d e p r e c a t e d I F C o n l y s u p p o r t s m o d e l s p a c e g e o m e t r y a n d n o t p a p e r s p a c e d i m e n s i o n a n n o t a t i o n s D e l e t e d n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p I f c P r o f i l e P r o p e r t y R e s o u r c e n b s p n b s p n b s p n b s p I f c G e n e r a l P r o f i l e P r o p e r t i e s E n t i t y r e p l a c e d b y I f c P r o f i l e P r o p e r t i e s D e l e t e d n b s p n b s p I f c R i b P l a t e P r o f i l e P r o p e r t i e s E n t i t y r e p l a c e d b y I f c P r o f i l e P r o p e r t i e s D e l e t e d n b s p n b s p I f c P r o f i l e P r o p e r t i e s n b s p n b s p n b s p n b s p n b s p P r o f i l e N a m e O p t i o n a l a t t r i b u t e d e l e t e d u s e P r o f i l e N a m e i n I f c P r o f i l e D e f i n s t e a d D e l e t e d n b s p n b s p I f c S t r u c t u r a l P r o f i l e P r o p e r t i e s E n t i t y r e p l a c e d b y I f c P r o f i l e P r o p e r t i e s D e l e t e d n b s p n b s p I f c S t r u c t u r a l S t e e l P r o f i l e P r o p e r t i e s E n t i t y r e p l a c e d b y I f c P r o f i l e P r o p e r t i e s D e l e t e d n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p I f c P r o f i l e R e s o u r c e n b s p n b s p n b s p n b s p I f c A s y m m e t r i c I S h a p e P r o f i l e D e f n b s p n b s p n b s p n b s p n b s p C e n t r e O f G r a v i t y I n Y S u p e r s e d e d b y r e s p e c t i v e a t t r i b u t e o f I f c S t r u c t u r a l P r o f i l e P r o p e r t i e s D e l e t e d n b s p n b s p I f c C r a n e R a i l A S h a p e P r o f i l e D e f D e p r e c a t e d D e l e t e d n b s p n b s p I f c C r a n e R a i l F S h a p e P r o f i l e D e f D e p r e c a t e d D e l e t e d n b s p n b s p I f c C S h a p e P r o f i l e D e f n b s p n b s p n b s p n b s p n b s p C e n t r e O f G r a v i t y I n X S u p e r s e d e d b y r e s p e c t i v e a t t r i b u t e o f I f c S t r u c t u r a l P r o f i l e P r o p e r t i e s D e l e t e d n b s p n b s p I f c D e r i v e d P r o f i l e D e f S h a l l n o l o n g e r b e u s e d t o p e r f o r m m i r r o r i n g o n l y s p e c i a l c a s e n o w c o v e r e d b y I f c M i r r o r e d P r o f i l e D e f D e p r e c a t e d u s a g e n b s p n b s p I f c L S h a p e P r o f i l e D e f n b s p n b s p n b s p n b s p n b s p C e n t r e O f G r a v i t y I n X S u p e r s e d e d b y r e s p e c t i v e a t t r i b u t e o f I f c S t r u c t u r a l P r o f i l e P r o p e r t i e s D e l e t e d n b s p n b s p n b s p C e n t r e O f G r a v i t y I n Y S u p e r s e d e d b y r e s p e c t i v e a t t r i b u t e o f I f c S t r u c t u r a l P r o f i l e P r o p e r t i e s D e l e t e d n b s p n b s p I f c T S h a p e P r o f i l e D e f n b s p n b s p n b s p n b s p n b s p C e n t r e O f G r a v i t y I n Y S u p e r s e d e d b y r e s p e c t i v e a t t r i b u t e o f I f c S t r u c t u r a l P r o f i l e P r o p e r t i e s D e l e t e d n b s p n b s p I f c U S h a p e P r o f i l e D e f n b s p n b s p n b s p n b s p n b s p C e n t r e O f G r a v i t y I n X S u p e r s e d e d b y r e s p e c t i v e a t t r i b u t e o f I f c S t r u c t u r a l P r o f i l e P r o p e r t i e s D e l e t e d n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p I f c R e p r e s e n t a t i o n R e s o u r c e n b s p n b s p n b s p n b s p I f c P r o d u c t R e p r e s e n t a t i o n T h e e n t i t y I f c P r o d u c t R e p r e s e n t a t i o n s h a l l n o t b e i n s t a n t i a t e d e x p l i c i t l y a l t h o u g h i t m a y b e i n s t a n t i a t e d i m p l i c i t l y t h r o u g h a n i n s t a n t i a t i o n o f o n e o f i t s s u b t y p e s N O T E T h i s e n t i t y w i l l b e c h a n g e d t o a n A B S T R A C T s u p e r t y p e i n a f u t u r e e d i t i o n o f t h e s p e c i f i c a t i o n M a d e a b s t r a c t n b s p n b s p I f c R e p r e s e n t a t i o n T h e e n t i t y I f c R e p r e s e n t a t i o n s h a l l n o t b e i n s t a n t i a t e d e x p l i c i t l y a l t h o u g h i t m a y b e i n s t a n t i a t e d i m p l i c i t l y t h r o u g h a n i n s t a n t i a t i o n o f o n e o f i t s s u b t y p e s N O T E T h i s e n t i t y w i l l b e m a d e i n t o a n A B S T R A C T s u p e r t y p e i n a f u t u r e e d i t i o n o f t h e s p e c i f i c a t i o n M a d e a b s t r a c t n b s p n b s p I f c R e p r e s e n t a t i o n C o n t e x t T h e e n t i t y I f c R e p r e s e n t a t i o n C o n t e x t s h a l l n o t b e i n s t a n t i a t e d e x p l i c i t l y a l t h o u g h i t m a y b e i n s t a n t i a t e d i m p l i c i t l y t h r o u g h a n i n s t a n t i a t i o n o f o n e o f i t s s u b t y p e s N O T E T h i s e n t i t y w i l l b e c h a n g e d t o a n A B S T R A C T s u p e r t y p e i n a f u t u r e e d i t i o n o f t h e s p e c i f i c a t i o n M a d e a b s t r a c t n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p I f c S t r u c t u r a l L o a d R e s o u r c e n b s p n b s p n b s p n b s p I f c B o u n d a r y E d g e C o n d i t i o n I n f i n i t e s t i f f n e s s s h a l l n o w b e m o d e l e d a s B o o l e a n v a l u e T R U E r a t h e r t h a n a n u m e r i c v a l u e o f 1 D e p r e c a t e d u s a g e n b s p n b s p I f c B o u n d a r y F a c e C o n d i t i o n I n f i n i t e s t i f f n e s s s h a l l n o w b e m o d e l e d a s B o o l e a n v a l u e T R U E r a t h e r t h a n a n u m e r i c v a l u e o f 1 D e p r e c a t e d u s a g e n b s p n b s p I f c B o u n d a r y N o d e C o n d i t i o n I n f i n i t e s t i f f n e s s s h a l l n o w b e m o d e l e d a s B o o l e a n v a l u e T R U E r a t h e r t h a n a n u m e r i c v a l u e o f 1 D e p r e c a t e d u s a g e n b s p n b s p I f c B o u n d a r y N o d e C o n d i t i o n W a r p i n g I n f i n i t e s t i f f n e s s s h a l l n o w b e m o d e l e d a s B o o l e a n v a l u e T R U E r a t h e r t h a n a n u m e r i c v a l u e o f 1 D e p r e c a t e d u s a g e n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p I f c T i m e S e r i e s R e s o u r c e n b s p n b s p n b s p n b s p I f c T i m e S e r i e s R e f e r e n c e R e l a t i o n s h i p m a d e o b s o l e t e b y m o r e g e n e r a l I f c E x t e r n a l R e f e r e n c e R e l a t i o n s h i p D e l e t e d n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p I f c U t i l i t y R e s o u r c e n b s p n b s p n b s p n b s p I f c C h a n g e A c t i o n E n u m T h e e n u m e r a t i o n v a l u e s M O D I F I E D A D D E D a n d M O D I F I E D D E L E T E D a r e d e p r e c a t e d a n d s h a l l n o t b e u s e d D e l e t e d n b s p n b s p n b s p n b s p n b s p n b s p n b s p C O R E L A Y E R n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p I f c K e r n e l n b s p n b s p n b s p n b s p n b s p I f c R e l A s s i g n s R e l a t e d O b j e c t s T y p e T h e a t t r i b u t e h a s b e e n d e p r e c a t e d i e t h e r e s h o u l d b e n o v a l u e s i n s e r t e d N e w d e p r e c a t i o n n b s p n b s p I f c R e l A s s o c i a t e s T h e e n t i t y I f c R e l A s s o c i a t e s s h a l l n o t b e i n s t a n t i a t e d o n l y i m p l i c i t l y t h r o u g h a n i n s t a n t i a t i o n o f i t s s u b t y p e s N O T E T h i s e n t i t y w i l l b e c h a n g e d i n t o a n A B S T R A C T s u p e r t y p e i n a f u t u r e e d i t i o n o f t h e s p e c i f i c a t i o n M a d e a b s t r a c t n b s p n b s p I f c R e l O v e r r i d e s P r o p e r t i e s T h e e n t i t y I f c R e l O v e r r i d e s P r o p e r t i e s h a s b e e n m a r k e d a s d e p r e c a t e d a n d s h a l l n o l o n g e r b e u s e d D e l e t e d n b s p n b s p I f c T y p e O b j e c t T h e I f c T y p e O b j e c t s h a l l n o t b e i n s t a n t i a t e d o n l y i m p l i c i t l y t h r o u g h a n i n s t a n t i a t i o n o f i t s s u b t y p e s N O T E T h i s e n t i t y w i l l b e c h a n g e d i n t o a n A B S T R A C T s u p e r t y p e i n a f u t u r e e d i t i o n o f t h e s p e c i f i c a t i o n N e w d e p r e c a t i o n n b s p n b s p I f c T y p e P r o d u c t T h e I f c T y p e P r o d u c t s h a l l n o t b e i n s t a n t i a t e d o n l y i m p l i c i t l y t h r o u g h a n i n s t a n t i a t i o n o f i t s s u b t y p e s N O T E T h i s e n t i t y w i l l b e c h a n g e d i n t o a n A B S T R A C T s u p e r t y p e i n a f u t u r e e d i t i o n o f t h e s p e c i f i c a t i o n N e w d e p r e c a t i o n n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p I f c P r o c e s s E x t e n s i o n n b s p n b s p n b s p n b s p I f c R e l A s s i g n s T a s k s A s s i g n e m n t o f t a s k s t o w o r k c o n t r o l s i s h a n d l e d b y I f c R e l A s s i g n s T o C o n t r o l T i m e i n f o r m a t i o n i s n o w d i r e c t l y a t t a c h e d t o I f c T a s k t h r o u g h t h e n e w a t t r i b u t e T a s k T i m e D e l e t e d n b s p n b s p I f c S c h e d u l e T i m e C o n t r o l T a s k t i m e i n f o r m a t i o n a r e n o w d e f i n e d b y I f c T a s k T i m e D e l e t e d n b s p n b s p n b s p n b s p n b s p n b s p n b s p n b s p I f c P r o d u c t E x t e n s i o n n b s p n b s p n b s p n b s p I f c D i s t r i b u t i o n E l e m e n t T h e I f c D i s t r i b u t i o n E l e m e n t s h a l l n o t b e i n s t a n t i a t e d o n l y i m p l i c i t l y t h r o u g h a n i n s t a n t i a t i o n o f i t s s u b t y p e s N O T E T h i s e n t i t y w i l l b e c h a n g e d i n t o a n A B S T R A C T s u p e r t y p e i n a f u t u r e e d i t i o n o f t h e s p e c i f i c a t i o n N e w d e p r e c a t i o n n b s p n b s p I f c D i s t r i b u t i o n E l e m e n t T y p e T h e I f c D i s t r i b u t i o n E l e m e n t T y p e s h a l l n o t b e i n s t a n t i a t e d o n l y i m p l i c i t l y t h r o u g h a n i n s t a n t i a t i o n o f i t s s u b t y p e s N O T E T h i s e n t i t y w i l l b e c h a n g e d i n t o a n A B S T R A C T s u p e r t y p e i n a f u t u r e e d i t i o n o f t h e s p e c i f i c a t i o n N e w d e p r e c a t i o n n b s p n b s p I f c E l e c t r i c a l E l e m e n t T h e e n t i t y I f c E l e c t r i c a l E l e m e n t i s n o w d e l e t e d a f t e r b e i n g d e p r e c a t e d s i n c e I F C 2 x 2 D e l e t e d n b s p n b s p I f c E q u i p m e n t E l e m e n t T h e e n t i t y I f c E q u i p m e n t E l e m e n t i s n o w d e l e t e d a f t e r b e i n g d e p r e c a t e d s i n c e I F C 2 x 2 D e l e t e d n b s p n b s p I f c F u r n i s h i n g E l e m e n t T h e I f c F u r n i s h i n g E l e m e n t s h a l l n o t b e i n s t a n t i a t e d o n l y i m p l i c i t l y t h r o u g h a n i n s t a n t i a t i o n o f i t s s u b t y p e s N O T E T h i s e n t i t y w i l l b e c h a n g e d i n t o a n A B S T R A C T s u p e r t y p e i n a f u t u r e e d i t i o n o f t h e s p e c i f i c a t i o n N e w d e p r e c a t i o n n b s p n b s p I f c F u r n i s h i n g E l e m e n t T y p e T h e I f c F u r n i s h i n g E l e m e n t T y p e s h a l l n o t b e i n s t a n t i a t e d o n l y i m p l i c i t l y t h r o u g h a n i n s t a n t i a t i o n o f i t s s u b t y p e s N O T E T h i s e n t i t y w i l l b e c h a n g e d i n t o a n A B S

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  • Start Page of IFC2x4 RC2 Documentation
    Specification of data schema standard for the construction and fm industries Industry Foundation Classes IFC2x Edition 4 Release Candidate 2 published by buildingSMART International copyright by buildingSMART International Ltd 1996

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  • Core data schemas
    and inner boundaries External boundaries are now separated when facing outer air earth water or neighboring buildings HVAC Elements The definitions of HVAC elements in regard to their system behavior segment fitting flow terminal energy conversion etc are semantically improved Examples include a space heater has been changed to be a flow terminal and to include also electric heaters a gas burner can been generalized into a fuel independent burner class etc A substantial number of documentation improvements have been made to both the semantic definitions and enumerators for many of the HVAC entity types So have e g tank type enumerators been redefined along functional definitions rather than construction definitions Diagrams have been added to illustrate port connectivity for air terminals and boilers Pipes and ducts now have specific entities to allow for parametric definitions Segments can now carry an axis representation for sweeping a material profile set Electrical Improvements have been made to support for protective devices including separation of tripping and breaker units More protective device types are supported with enhanced detail in property sets In particular curve interpolation has been added to property specification Cores and busbars have been added to cable segments Electrical distribution board types have been added in place of electrical distribution points matching the customary type occurrence pairings Electric heaters have been moved to being types of space heater rationalizing heaters by function rather than energy source Types of electric appliances have been more clearly identified as temporarily connected loads through a plug socket outlet connection Audio visual and communication appliance types are now supported separately from electrical appliance type These appliances respond to the improvements in identification of distribution systems Structural modeling and detailing elements Due to the changes to Building Elements cross section definition of columns beams and similar elements has been enhanced Section geometry and material information is now associated with building elements in the same fashion as with walls and slabs Profile information is provided already at a higher level than the geometric representation References to standards or libraries can now be added to profile definitions and a number of details in profile definitions have been enhanced e g by simpler mirroring of asymmetric profiles Structural elements for foundations can now be accompanied by type objects Type objects are also available for element components like insulations now New classes for manufacturing details such as cutouts have been added The Core Definition changes for decomposed type objects enable effective models of detailed designs Structural analysis elements The structural analysis domain model has been cleaned up and partially simplified The use of topology representations and coordinate systems has been clarified Profile and material association has been brought in line with Building Elements More flexible models of curved surface members are now available due to Geometry changes Distributed loads are now modeled in a more straight forward way This change also made it possible to provide analysis results not only at point connections but also at curve or surface items Required

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  • IFC2x4 beta 3 what's new
    now separated when facing outer air earth water or neighboring buildings HVAC Elements The definitions of HVAC elements in regard to their system behavior segment fitting flow terminal energy conversion etc are semantically improved Examples include a space heater has been changed to be a flow terminal and to include also electric heaters a gas burner can been generalized into a fuel independent burner class etc A substantial number of documentation improvements have been made to both the semantic definitions and enumerators for many of the HVAC entity types So have e g tank type enumerators been redefined along functional definitions rather than construction definitions Diagrams have been added to illustrate port connectivity for air terminals and boilers Pipes and ducts now have specific entities to allow for parametric definitions Segments can now carry an axis representation for sweeping a material profile set Electrical Improvements have been made to support for protective devices including separation of tripping and breaker units More protective device types are supported with enhanced detail in property sets In particular curve interpolation has been added to property specification Cores and busbars have been added to cable segments Electrical distribution board types have been added in place of electrical distribution points matching the customary type occurrence pairings Electric heaters have been moved to being types of space heater rationalizing heaters by function rather than energy source Types of electric appliances have been more clearly identified as temporarily connected loads through a plug socket outlet connection Audio visual and communication appliance types are now supported separately from electrical appliance type These appliances respond to the improvements in identification of distribution systems Structural modeling and detailing elements Due to the changes to Building Elements cross section definition of columns beams and similar elements has been enhanced Section geometry and material information is now associated with building elements in the same fashion as with walls and slabs Profile information is provided already at a higher level than the geometric representation References to standards or libraries can now be added to profile definitions and a number of details in profile definitions have been enhanced e g by simpler mirroring of asymmetric profiles Structural elements for foundations can now be accompanied by type objects Type objects are also available for element components like insulations now New classes for manufacturing details such as cutouts have been added The Core Definition changes for decomposed type objects enable effective models of detailed designs Structural analysis elements The structural analysis domain model has been cleaned up and partially simplified The use of topology representations and coordinate systems has been clarified Profile and material association has been brought in line with Building Elements More flexible models of curved surface members are now available due to Geometry changes Distributed loads are now modeled in a more straight forward way This change also made it possible to provide analysis results not only at point connections but also at curve or surface items Required or provided reinforcement of surface members

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  • IfcIndexedPolyCurve
    segments In this example no list of Segments is provided hence the points are drawn in the order of their appearance in the IfcCartesianPointList Figure 378 Bounded open IfcIndexedPolyCurve with only straight segments The IfcIndexedPolyCurve represents an open or a closed curve depending on the following condition In the case that the list of Segments is provided If the last index of the last Segment and the first index of the first Segment are identical then the poly curve is a closed curve otherwise it is an open curve In the case that the list of Segments is not provided If the first and the last Cartesian point in the Cartesian point list are identical then the poly curve is a closed curve otherwise it is an open curve HISTORY New entity in IFC4 ADD1 Informal Propositions Any two consecutive points of the IfcIndexedPolyCurve shall not be coincident after taking the Precision factor into account given by the applicable IfcGeometricRepresentationContext The three points of any IfcArcIndex segment of the IfcIndexedPolyCurve shall not be colinear after taking the Precision factor into account given by the applicable IfcGeometricRepresentationContext Attribute definitions Attribute Type Cardinality Description 1 Points IfcCartesianPointList 1 1 A list of points provided by a point list of either two or three dimensions that is used to define the poly curve If the attribute Segments is not provided the poly curve is generated as a poly line by connecting the points in the order of their appearance in the point list If the attribute Segments is provided the segments determine how the points are to be used to create straigth and circular arc segments 2 Segments IfcSegmentIndexSelect L 1 List of straight line and circular arc segments each providing a list of indices into the Cartesian point list Indices should preserve consecutive connectivity between the segments the start index of the next segment shall be identical with the end index of the previous segment 3 SelfIntersect IfcBoolean 0 1 Indication of whether the curve intersects itself or not this is for information only Formal Propositions Rule Description Consecutive If a list of indexed segments is provided they need to be consecutive meaning that the last index of all but the last segments shall be identical with the first index of the next segment Inherited definitions from supertypes Attribute inheritance Attribute Type Cardinality Description IfcRepresentationItem LayerAssignment IfcPresentationLayerAssignment AssignedItems S 0 1 Assignment of the representation item to a single or multiple layer s The LayerAssignments can override a LayerAssignments of the IfcRepresentation it is used within the list of Items StyledByItem IfcStyledItem Item S 0 1 Reference to the IfcStyledItem that provides presentation information to the representation e g a curve style including colour and thickness to a geometric curve IfcGeometricRepresentationItem IfcCurve Dim IfcCurveDim SELF IfcDimensionCount 1 1 The space dimensionality of this abstract class defined differently for all subtypes i e for IfcLine IfcConic and IfcBoundedCurve IfcBoundedCurve IfcIndexedPolyCurve 1 Points IfcCartesianPointList 1 1 A list of points provided by a point

    Original URL path: http://www.buildingsmart-tech.org/ifc/review/IFC4Add1/beta/html/schema/ifcgeometryresource/lexical/ifcindexedpolycurve.htm (2016-02-12)
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  • IfcCartesianPointList2D
    fixed list of two list members where 1 is the x coordinate and 2 the y coordinate of the Cartesian point NOTE The IfcCartesianPointList2D is introduced to provide a compact representation of larger list of points such as in indexable representation of points used as vertices in poly curves HISTORY New entity in IFC4 ADD1 Attribute definitions Attribute Type Cardinality Description 1 CoordList IfcLengthMeasure L 1 L 2 2 Two dimensional list of Cartesian points provided by two coordinates Inherited definitions from supertypes Attribute inheritance Attribute Type Cardinality Description IfcRepresentationItem LayerAssignment IfcPresentationLayerAssignment AssignedItems S 0 1 Assignment of the representation item to a single or multiple layer s The LayerAssignments can override a LayerAssignments of the IfcRepresentation it is used within the list of Items StyledByItem IfcStyledItem Item S 0 1 Reference to the IfcStyledItem that provides presentation information to the representation e g a curve style including colour and thickness to a geometric curve IfcGeometricRepresentationItem IfcCartesianPointList IfcCartesianPointList2D 1 CoordList IfcLengthMeasure L 1 L 2 2 Two dimensional list of Cartesian points provided by two coordinates Formal representations XSD Specification xs element name IfcCartesianPointList2D type ifc IfcCartesianPointList2D substitutionGroup ifc IfcCartesianPointList nillable true xs complexType name IfcCartesianPointList2D xs complexContent xs extension

    Original URL path: http://www.buildingsmart-tech.org/ifc/review/IFC4Add1/beta/html/schema/ifcgeometricmodelresource/lexical/ifccartesianpointlist2d.htm (2016-02-12)
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