turn your soa up to 11
DESCRIPTION
Learn the secrets of a successful Service Oriented Architecture from a seasoned veteran that has seen large scale implementations come and go with varying levels of success.TRANSCRIPT
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11
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Jim Siegienski ~20 Years Experience Fortune 50 to Startups Enterprise Architect at
Dave Ramsey (Lampo)
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THE FIRST RULE…
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ProcessGovernanceConflict
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PROCESS
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3 KeySteps
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Functional
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Functional
Review
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Functional
API
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APIFunctional
Review
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APIFunctional
Technical
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API TechnicalFunctional
Review
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API TechnicalFunctional
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ImplementationCode goes here!
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FUNCTIONAL
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SimplicityScopeContext
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keep itsimple
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User ServiceDescription: Represent a user in the system Create user Update user Get user Get current time Get favorite color
Really!?
Probably Not
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Busi
ness
Uni
t
Busi
ness
Uni
t
Busi
ness
Uni
t
Busi
ness
Uni
t
Serv
ice
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AND
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API
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RESTSecurity
Versioning
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Method: GETURI: /users/{key}Response: 200Representation:
{ “first_name”: ”John”, “last_name”:”Doe” }Error:
400 Bad Request401 Unauthorized404 Not Found
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A Noun is a Person,
Place, or Thing.
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GET
POST
PUT
PATCH
DELETE
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GET
POST
PUT
PATCH
DELETE
Read
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GET
POST
PUT
PATCH
DELETE
Create
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GET
POST
PUT
PATCH
DELETE
Update
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GET
POST
PUT
PATCH
DELETE Delete
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GET
POST
PUT
PATCH
DELETE
Partial Update
Still A Proposal:
http://www.ietf.org/rfc/rfc5789.txt
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Security
Svc1
Svc2
SvcnApp1
App2
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ROLE
Permission
Permission
Permission
Permission
Permission
Grant
Check
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Accept: application/vnd.lampo.service-v2+json
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Custom HTTP Headers?
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TECHNICAL
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Flow ChartClass Diagram
Sequence DiagramData Model
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Start
Done?
Start
Process
No
Yes
Flow
Cha
rt
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Person
FirstNameLastName
GetName()
User
UsernamePassword
Login()
VIP
Importance
GetImportance()
Clas
s D
iagr
am
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Controller Service Model
Sequ
ence
Dia
gram
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person
first_namelast_name
Dat
a M
odel
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IMPLEMENTATION
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ControllerServiceModel
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Model
Service
Controller
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Model
Service
Controller
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Model
Service
Controller•No Business Logic•Take the Call•Format the Output
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Model
Controller
Service
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Model
Controller
Service•Business Logic•Model Orchestration•Heart of the System
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Service
Controller
Model
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Service
Controller
Model•Data Access•As Fat as Possible
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Model
Service
Controller
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Who
What
How
Why?
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Svc1 Svc2 Svc3 Svc4 Svcn
UI1 UI2 UI3 UIn
App1 App2 Appn
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Glory is fleeting, but obscurity is
forever.Napoleon Bonaparte
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Not Everything is black and white.
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THANK YOU!
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FURTHER READING
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Books: SOA Governance by Thomas Erl Design Patterns: Elements of Reusable Object Oriented Software by GoF Expert One-on-One J2EE Design and Development by Rod Johnson
Links: http://bestoked.blogspot.com/2012/02/restful-resources-required-reading.html http://www.springsource.org/ http://www.lucidchart.com/
Contact: [email protected] @JimSiegienski