text_combined: zapthink lhcgduiqzapthinkcom zapflash service consumers service providers never directly communicate zapflash issue feb 28 2008 welcome zapflash zapthinks email newsletter issue find valuable news research analysis insight xml web services serviceoriented architectures zapthink issues features include service consumers service providers never directly communicate almost full practical soa events nynj finance pharma media governancequalitymanagement gqm uk insurance announcing zapcheck zapthinks oneday soa quick assessment sanity check register next lza boot camps florida australia india featured events listen latest podcasts get copy forwarded click sign free subscription today email disclosure find email useful irritating otherwise unacceptable click unsubscribe never bothered dont miss practical soa new york new jerseynext month hear enterprise architect practitioners looking usable business case studies value propositions soa want learn latest best practices making soa success want hear successful architects soa efforts want learn peers really takes put together soa want take soa next level register today practical soa new york new jersey march 25 2008 newark hilton penn station newark nj sponsored data direct hp itko managed methods tidal software media sponsor toolbox service consumers service providers never directly communicate document id zapflash2008228 document type zapflash ronald schmelzer posted feb 28 2008 edward r murrow said people say conversation lost art often wished true vendor mediaspun world even case soa many people think talking serviceoriented architecture soa time theyre really web services integration wsi developing bunch web services jbows even pointtopoint xml many would like call rest even cases even truly representational state transfer rest also architectural form even 8 years evangelism research advisory deep consulting still finding large percentage socalled enterprise architects pursuing soa projects pointtopoint integration projects weve discussed many times economic technical architectural philosophical perspective problem understanding soa architectural concept wont bore nag understanding soa another name integration however need crack nut crack definitively industry make progress current inefficient ineffective unpredictable overlyexpensive overlycomplex rudimentary form predictable reliable costeffective disciplined easily measured part business organization know weve made pleas business architectural processdriven parts organization vendors previous zapflashes want focus zapflash problem specifically lies within organization specifically part concerns socalled integration issues folks im speaking directly integrationcentric techies getting way making soa success probably due misunderstandings misconceptions soa work correct misunderstanding need speak language language integration technology problem service consumer service provider communication typical integration environments youre primarily concerned movement data amalgamation business logic achieve specific task vein integration developers think inputs gazintas outputs gazattas transfer transformation think theyre going get data application functionality one system theyll get another system mechanism theyll use get information functionality one place another need enroute transform one format protocol context process policy another architects chemists scientists trying understand system put together integration developers chemical engineers focusing mechanisms transformation integrationcentric mentality integration developers see concept service another means gazinta gazatta means integrationheads need find something else transfer transformation vendors rescue vendors responded desire simply dusting existing integration middleware endusers responded easily insignificant change voila transfer transform deal servicebased gazintasgazattas make soa oh weve already beaten head million times lets take different tack reason approach wrong services consumers might think gazinta never communicate directly service providers might erroneously think gazatta first main concept soa want deal frequent unpredictable change constructing architectural model discipline abstraction looselycouples providers capability consumers capability environment continuous heterogeneity means somehow develop capabilities without knowledge might used delved seven aspects loose coupling previous zapflash means need significant variability variety aspects including implementation infrastructure contract process policy data schema semantic aspects variability allows companies stability business even though business continue change agility predictability reliability visibility costeffectiveness become much realistic achieve sort abstraction achieve abstraction means cant afford things break things change lots things change business environment location availability services versioning service implementations contracts changes business processes policies new changing requirements reporting visibility control course need new capabilities solve emerging business problems capitalize new business opportunities however think service api hell breaks loose try connect service consumer directly service provider provider moves service contract changes provider longer available need new communication mechanism change data schema first kneejerk reaction complexity integration architects put piece technology service consumers providers ameliorate problem impulse correct cant direct communication want variability however execution wrong relying blackbox often proprietary technology heavy lifting managing service communication differences youll simply shift complexity work endpoints services increasingly complex expensive brittle middle point welcome eai 20 secret unpublicized real name socalled enterprise service bus esb products least way many using reintroducing service proxy reworked middleware isnt solution well course answer architecture thats pat answer speak parlance integration developers lets explore system would designed cant count particular vendors solution middle make work lets say want build service consumer consume compose functionality dont know functionality even communicate least three ways handling particular challenge first talk proxy broker intermediary language understand thats location already know send request proxy act behalf consumer envelope within envelope concept basically enclose message deliver someone know dont know within envelope addressed party know party opens envelope addresses internal envelope end recipient based lookup sort approach simplifies problem service consumer know changes since need know proxy endrecipient technology perspective use wsaddressing simplifies approach essence service consumer needs know wsaddress provider hand service proxy resolve deliver weve discussed concept service intermediary problem approach service proxy still needs find way deliver message proxy contains rules internally blackbox problem eai 20style esb solutions registry steps service proxies store rules rather get routing location policybased binding rules central system record soa role registry proxies cache results registry lookups performance enhancement metadata come registry registryconfigured service proxies solve many problems service communication still leaves open problem connection service consumer service proxy proxies move unavailable service consumers find service proxy first place answer challenge use registrybased late binding scenario service consumer pings registry find proxy perhaps based service consumer currently located protocols communicate one would think make service consumer directly bind service provider finding metadata registry would mistake problem service provider using alternate protocol location service consumer cant reach well communications problem even case discovering metadata registry still dont want direct communication service consumer provider therefore optimal solution use registrybased latebinding help service consumers find proxies also help resolve service providers wsaddresses service consumer communicates proxy providing wsaddress required metadata communication allows service consumers quite simple leveraging network distributed likely heterogeneous service proxies communication behalf service consumers scenario companies implement service proxies using mixing wide range technologies approaches including hardwarebased network intermediaries software proxies even agents reside service consumer endpoints finally scenario wheres esb nowhere unless believe esb pattern product ibm espoused esb needed necessarily make feel better buy one anyways maybe course proxies surely esb vendors want believe products used proxies configuration thats absolutely true certainly point esbs cant make good proxies certainly want specifically point also get away using one using existing infrastructure still work sad truth integration architects using esbs service proxies rather eai 20 hubandspoke messagebus brokers facilitate web services integration soa zapthink take think weve already implemented complex heterogeneous networks fashion computers leverage dhcp gateways routers networking way thats far superior direct pointtopoint ip communications basically saying service communication understanding realization technology issue architectural one get soa get head service concept abstraction interface understand abstraction become much clearer need soulsearching regards soa initiative web services integration wsi eai 20 really changed architecture become serviceoriented environment heterogeneity continuous change wsi eai 20 find continuously solving problems soa find able continuously solve new problems innovations software architects data connectivity design considerations soa virtualized environments half day seminar software architects learn design considerations included successful architecture approach soa applications virtualized environments seminar provide insight navigate complexities data access technologies practical knowhow enhance application performance flexibility capability right away information provided seminar applicable architects regardless whether designing java net development platforms address increasingly typical situation enterprise dealing heterogeneous mix data relational xml proprietary data formats reside combination different platforms including windows unix linux mainframe register dont miss practical soa new york new jerseynext month hear enterprise architect practitioners looking usable business case studies value propositions soa want learn latest best practices making soa success want hear successful architects soa efforts want learn peers really takes put together soa want take soa next level register today practical soa new york new jersey march 25 2008 newark hilton penn station newark nj sponsored data direct hp itko 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assessment sanity check want get head start soa initiatives already head start want accelerate progress already making progress want validate approach industry practices small amount time budget get thirdparty advicethen zapcheck zapthinks oneday soa quick assessment sanity check youour zapcheck service leverages proven checklistbased methodology architectural assessment approach aims provide following five points valuea clear definition roi soa enterprisea clear understanding right approach soa including high level goals objectivesa clear understanding key architectural issues opportunities facilitate soa adoptiona roadmap architectural artifacts enhancing soa efforts established emerging best practicesa set deliverables approaching management funding sponsorshipfind sign httpwwwzapthinkcomzapcheckhtml web 20 soa live panel discussion interactive roundtable provides proven soa security strategiesdatetime wednesday february 27 1200 pm etyou get answers specific soa security questions 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