Open
Standards
Unl ke propr etary, trad t onal EAI solut ons, Web Serv ces are
based on open XML-based standards such as WSDL, UDDI,
SOAP and th s s probably the s ngle most mportant factor that
leads to the w de adopt on of Web Serv ces technolog es. Web
Serv ces are bu lt on ex st ng and ub qu tous protocols
el m nat ng the need for compan es to nvest n support ng new
network protocols.
Flexibility Trad t onal EAI solut ons requ re endpo nt-to-endpo nt
ntegrat on. Changes made at one end have to be propagated
to the other end, mak ng them very r g d and t me consum ng n
nature. Web Serv ces based ntegrat on s qu te flex ble, as t s
bu lt on loose coupl ng between the appl cat on publ sh ng the
serv ces and the appl cat on us ng those serv ces.
Cheap Trad t onal EAI solut ons, such as message brokers, are very
expens ve to mplement. Web Serv ces, n the future, may
accompl sh many of the same goals - cheaper and faster.
Scope Trad t onal EAI solut ons cons der and treat appl cat ons as
s ngle ent t es, whereas Web Serv ces allow compan es to
break down complex serv ces nto small ndependent log cal
un ts and bu ld wrappers around them.
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