service oriented architecture search membership group meeting cleveland, ohio july 24, 2008 scott...
TRANSCRIPT
Service Oriented ArchitectureSEARCH Membership Group MeetingCleveland, OhioJuly 24, 2008
Scott CameDirector of Systems and Technology
SEARCH
Welcome
IntroductionsObjectivesBrief motivation for SOAOpen discussion: what does this mean for
SEARCH members?
What is Architecture?
An architecture is a framework that guides
the significant decisions involved in creating or enhancing something
that matters.
Information Sharing Decisions
Architecture should tell us:How do we describe/define exchanges
(requirements)?How do we format the information?How is information transported (securely,
reliably)? How do systems connect?What infrastructure do we share? What
does it do? What technologies?How do we find exchanges?Who does/owns/funds what?
< JIEM
< NIEM
Why SOA?
The short answer:
Business agility
Single, standards-based way of handling cross-exchange requirements
A scenario
Law Enforcement sends demographics/charge information to Prosecutor…and the repository…and the jailProsecutor makes bail recommendation to courtProsecutor files charges with courtAnd pretty soon…
Flavors of Agility
AdaptabilityRespond to business opportunities
ReusabilityEliminate large-scale “rip and replace”
AutonomyBalance agency and enterprise needs
InteroperabilityChange technologies, vendors
TransparencyModels drive integration logic; orchestration
rather than coding
Is Agility Important?
How much change do you expect?OpportunitiesNew PartnersLegislative MandatesFederal MandatesExecutivesManagersStaffVendorsTechnology changes
How much will it cost?
Cross-Exchange Requirements
Some classes of requirements will be common across exchangesSeek economies of scaleStandards, thenShared infrastructure
Requirements:
Transport
Authorization
Authentication
Non-repudiation
Integrity
Supportability
Notification
Reliability
Routing
Transformation
A scenario
Law Enforcement reports booking eventPlatform transforms information and routes to Prosecutor and jailProsecutor makes bail recommendationPlatform routes to CourtProsecutor files chargesPlatform routes to Court
A few pointers
SOA is something you do, not something you buyRequirements and business need first,
software acquisition secondArchitecture first, ESB/hub/broker second
SOA implementation is a continuumXML/NIEMWeb ServicesProper servicesBusiness Processes
Incremental Adoption of SOA
AgilityXML
Indu
stry S
tand
ards
Contro
lled
voca
b
Stand
ard
mes
sage
s
(IEPDs)
SOAP
WS-*
Loca
tion
Inde
pend
ence
(regis
try)
Repos
itorie
s
Separ
ation
of
Busine
ss lo
gic
(inte
rmed
iaries
)
Provis
ioning
Mod
els
(sha
red
serv
ices)
Event
-driv
en
arch
itectu
reShare
d
Mes
sage
Trans
port
Discussion
How is SOA relevant to you?Handouts…
