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Introduction to
Windows Communication Foundation
Suthep Sangvirotjanaphat
Microsoft Most Valuable Professional (MVP)(MVP)
G reatF riend s. B iz I nstructor
Introduction to WCF 1
Agenda
Windows Communication
F oundation ( WCF ) – Indigo
W h y ?
W h a t?
H ow ?
Introduction to WCF 2
W h y WCF? – t h e p r o b l em
B e c a u s e s of t w a r e is inv a r ia b l y
int e r c onne c t e d,
… bu t bu i l d i n g
co n n e ct e d s y s t e m s i s hard !
1. C o n f u s i n g n u m b e r o f i n c o m p l e t e t o o l s
2 . E n d u rin g te c h n ic a l im p e d im e n ts
a) A r c h i t e c t u r al m i s m at c h
b ) S e c u r it y
c ) R e l i ab i l i t y
d ) C o n s is t e n c y
3 . D e v e lo p e rs a re o v e rw h e lm e d
4 . A c c e le ra te d d e m a n d fo r n e w fu n c tio n a lity
5 . S o ftw a re In e rtia
Introduction to WCF 3
1
As w e gr o w …
Volume of Software
I n c reas es
A b i li ty to A d ap t
D ec reas es
Time
Introduction to WCF 4
W h y WCF? – t h e s o l u t i o n
B e c a u s e s of t w a r e is inv a r ia b l y
int e r c onne c t e d,
… s o bu i l d i n g
co n n e ct e d s y s t e m s s h o u l d be s i m p l i f i e d :
1. O n e t o o l ,
2 . fo r a ll s c e n a rio s ,
a) f r o m c o n n e c t i n g c o m p o n e n t s . . .
b ) t o i n t e g r at i n g ap p l i c at i o n s .
3 . S e c u re , re lia b le , tra n s a c te d e x c h a n g e s ,
4 . a c ro s s p la tfo rm s ,
5 . w ith a ll th e th ro u g h p u t y o u n e e d .
Introduction to WCF 5
W h at i s W C F ?
C l a s s e s a dde d
t o t h e . N E T F r a m e w or k 2 . 0
…f o r b u ild in g s o f t w a r e s e r v ic e s :
i .e . s o f t w a r e d e s i g n e d f o r i n t e r a c t i o n o v e r
a n e tw o rk w ith a n in te r fa c e d e s c rib e d in W S D L .
W S D L is a s im p o rta n t to s o ftw a re a s m o n e y is
to th e e c o n o m y : it m a k e s in te ra c tio n s e ffic ie n t.
T h e I n d i g o p r o g r am m i n g m o d e l f o l l o w s W S D L c l o s e l y .
Introduction to WCF 6
2
W h at i s W C F ?
“A u n i f i e d p r o g r a m m i n g m o d e l
a n d ru n tim e e n v iro n m e n t
fo r r a p id ly b u ild in g
s e c u r e , r e lia b le s o ftw a re s e r v ic e s
w i t h m a n a g e d c o d e .”
Introduction to WCF 7
H o w do y o u b u i l d
s er v i c es w i t h W C F ?
W S D L
S e ct i o n
a . W h e r e ? s erv i c e
b . H o w ? b in d in g
c . W h at ? portType
Introduction to WCF 8
H o w do y o u b u i l d
s er v i c es w i t h W C F ?
W S D L W C F
S e ct i o n T e r m
a . W h e r e ? s erv i c e ad d res s
b . H o w ? b in d in g bi n d i n g
c . W h at ? portType con tra c t
Introduction to WCF 9
3
WCF
D e m ons tra tion
Introduction to WCF 10
T h e Ar c h i t ec t u r e o f W C F
CLR Type Transaction Security TCP
Integration Behavior Channel Transport
Service
C o d e
CLR Type Transaction Instancing Security TCP
Integration Behavior Behavior Channel Transport
Service Model Layer Messaging Layer
Influences and adds to Moves messages back
the programming and forth and adds
model based on transfer semantics
incoming messages (channels)
Introduction to WCF 11
B enef i t s o f t h e Ar c h i t ec t u r e
C om p os a b il it y
M odif y ing t h e s e r v ic e
inde p e nde nt l y of it s m e s s a ging
E x t e ns ib il it y
O n e p r o g r am m i n g m o d e l s cal i n g acr o s s
al l d i s t r i bu t e d s o f t w ar e s ce n ar i o s
5 % t o 10% f a s te r th a n ASMX
2 0% t o 2 00% fa s te r th a n .N E T R e m o t in g
2 0% f a s t e r t h a n E n t e r p r i s e Se r v i c e s f o r
la rg e m e s s a g e s (c u rre n tly s lo w e r fo r s m a ll o n e s )
Introduction to WCF 12
4
W C F P r o t ec t s Y o u r I nv es t m ent
ASMX .NET
Remoting
Interop Extensibility
with other Location
platforms transparency
Attribute-
Attribute- Message-
Message-
Based Oriented
WS-
WS-*
Programming Programming
Protocol
Enterprise Support System.Messaging
Services
WSE
Introduction to WCF 13
Is W C F fo r y o u ?
W h at i s y o u r i n v e s t m e n t i n n e w
ap p l i cat i o n s r e l at i v e t o co n n e ct i n g
e x is t in g o n e s ?
W h at i s t h e co s t o f i n t e g r at i n g i n t o
cu s t o m e r s ’ e n v i r o n m e n t s ?
H o w m an y d e al s d o y o u l o s e
o n p l at f o r m ?
H o w w o u l d o t h e r s y s t e m s e n h an ce y o u r s
i f o n l y y o u co n n e ct t o t h e m ?
Introduction to WCF 14
S t ages o f Ado p t i o n
o f S o f t w ar e S er v i c es
O rg aniz atio n is o ne
S erv ic e in a V al u e C h ain
O rg aniz atio n b ec o mes a
S erv ic e
O rg aniz atio n A d o pts
Department Experiments
Introduction to WCF 15
5
S u m m ar y
W e a re a lw a y s b u ild in g
c onne c t e ds y s t e m s .
T h a t ’s t o u g h to d o .
W C F is d e s ig n e d t o m a k e it e a s y :
O n e s i m pl e prog ra m m i n g tool
f or a n y s c en a ri o
Introduction to WCF 16
N e e d f ul l -l e ng th . N E T / O O A D cour se s?
Int e r e s t ing m or e f or y ou r t e a m ?
T h e m o s t v a lu a b le re s o u rc e fo r c o m p a n y a re k n o w le d g e w o rk e r s .
T h e m o s t v a lu a b le in v e s tm e n t is in v e s tm e n t in e d u c a tio n .
L e a rn .N E T t e c h n o l o g i e s f r o m Mi c r o s o f t Mo s t V a l u a b l e P r o f e s s i o n a l
(M V P ) a t C AT T o w e r Si -p r a y a o n S a t u r d a y a n d S u n d a y .
In -h o u s e T r a in in g a t y o u r s ite o n w o rk in g d a y s a ls o a v a ila b le .
H ow t o C ont a c t ?
V is it o u r W e b s ite a t h t t p :/ / G r e a t F r ie n d s .B iz
P h o n e : 0-2 9 7 4 -9 2 8 0 F a x : 0-2 9 7 4 -8 6 00
Mo b i l e : 0-9 9 6 7 -2 2 00 ( k h u n P h a n n i )
Introduction to WCF 17
. N E T T r ai ni ng b y M i c r o s o f t M V P
Cour se L ists (Seats sti l l av ai l ab l e! )
P r o g r am m i n g V i s u al B as i c 2 0 0 5 (B e g in n e r s le v e l)
V is u al B as i c 2 0 0 5 f o r B u s i n e s s ( I n t e r m e d i at e le v e l)
P r o f e s s i o n al V i s u al B as i c 2 0 0 5 ( A d v an c e d l e v e l)
O O A D an d D e s i g n P at t e r n s w it h U M L
H ow t o R e gis t e r
S e e m o re d e ta ile d in fo rm a tio n a b o u t e a c h c o u r s e s
a t h t t p :/ / G r e a t F r ie n d s .B iz
E a s y o n lin e re g is tra tio n to re s e rv e lim ite d s e a ts in e a c h
c la s s a t h t t p :/ / G r e a t F r ie n d s .B iz / C o u r s e s / R e g is t e r .a s p
Introduction to WCF 18
6
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