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Figure 1: Non-intermediated distribution in electronic commerce (Schoder,
Strauss, 1999) 
In t e r m e d a t i o n    No n - In t e r m e d a t o
i a t i o n    No n - In t e r m e d a t o
i a t o
i o
Su p p l e r / Pr o d u c e
i e r / Pr o d u c e
W
h
o e - sal e t r ad
l e - sal e t r ad
In t e r n e
On - l i n e Se r v i c e s
L
o
g
i
s i c s
t i c s
Re t ai t r ad
l t r ad
Co n su m e r
Figure 2: Classification of software agents (Joshi, Ramesh, 1998) 
In te ra c tio n 
M u lti-u se r m  ulti-a g e n t 
Sing le -use r m  ulti-a g e nt 
Sing le -use r sing le -a g e n t
Sta tio n a ry
H ig hly m  o b ile
M o b ility
Figure 3: Agent’s functions
C u sto m  e r
C o o p e ra tio n
C o m  p e titive
C o lla b o ra tive 
N e e d 
Id e ntific a tio n 
Sta tio n a ry A g e n t 
Pro d uc t
Bro ke rin g
N e g o tia tio n
M  o b ile  A g e n t
M  e rc h a n t 1
In itia liza tio n
R e sp o nse s
M e rc h a n t 1
M e rc h a nt
Bro ke rin g
M e rc h a n t 3
M e rc h a n t 2