Pa#ernDrivenEnterpriseArchitecture

MifanCareemDirector,Solu9onArchitectureWSO2Inc.

Agenda

•  Ofpa#ernsandbedroomsandsuch•  LayeredArchitecture•  ServiceOrientedArchitecture•  ResourceOrientedArchitecture•  EventDrivenArchitecture•  MicrokernelArchitecture•  Micro-servicesArchitecture•  CloudArchitecture•  Alltogetherthen!

WhatisaPa#ern!

• Apa#ernisareusablesolu9ontoasoJwaredesignproblemthathasbeenproveneffec9veinmul9plesitua9ons.

PATTERN:BedAlcove(akaDowereallyneedabedroom???)source:AbridgedbyGregHohpe;originallyfromChristopherAlexander

•  DesignProblem:Bedroomsmakenosense•  Forces:

–  First,thebedinabedroomcreatesawkwardspacesaroundit:dressing,working,watchingtelevision,siYng,areallratherforeigntothesidespacesleJoveraroundabed.

–  Second,thebeditselfseemsmorecomfortableinaspacethatisadjustedtoit.

•  Solu6on:– Don'tputsinglebedsinemptyroomscalledbedrooms,butinsteadputindividualbedalcovesoffroomswithothernonsleepingfunc9ons,sothebeditselfbecomesa9nyprivatehaven.

PATTERN:BedAlcove

• RelatedPa#erns– CommunalSleeping– MarriageBed– CeilingHeightVariety– Half-openRoom– ThickWalls

• RelatedAn9-pa#ern– Bedsidearguments!

FromBAtoSAtoDA

LayeredArchitecture

Presentation Layer

Network and Storage Layer

Persistence

Services | Middleware Layer

Business Layer

Agile L

Dev H

Dep L

Test H

Perf L

Scale L

Separation of concerns

Architecture sinkhole

LayeredArchitecture

Presentation Layer

Network and Storage Layer

Persistence

Services | Middleware Layer

Business Layer

Agile L

Dev H

Dep L

Test H

Perf L

Scale L

Separation of concerns

Architecture sinkhole

SOA:MEDIATION/TRANSFORMATION,BUSPATTERN,ENTERPRISEINTEGRATIONPATTERNS

Legacy Services

Wrapper

Connectors

Data Services Web Services

Transactional Client

Content based router Scatter-gather Content enricher

Dead letter channel Guaranteed delivery Store and forward

Adaptor

Cloud Services Async Services

SOA:SECURITY,IDENTITYBUS,SERVICEREGISTRY

Identity, Authentication, Entitlement, Enterprise Identity Bus

LDAP

External IS

Token Validation

Federated Identity Trusted Subsystems Brokered Authentication

Service Registry, Service Governance

Service Registry, Metadata centralization, Service decomposition, Service versioning

++ServiceOrientedArchitectureAgile H

Dev H

Dep L

Test L

Perf L

Scale H

++ServiceOrientedArchitectureAgile H

Dev H

Dep L

Test L

Perf L

Scale H

MicrokernelArchitecture

SMS

USSD

MePIN

Agile H

Dev L

Dep H

Test H

Perf H

Scale L

EventDrivenArchitecture

EDA Mediator EDA Broker

++EventDrivenArchitectureAgile H

Dev L

Dep H

Test L

Perf H

Scale H

++EventDrivenArchitectureAgile H

Dev L

Dep H

Test L

Perf H

Scale H

External Consumption

ResourceOrientedArchitecture

HATEOAS Late Binding Uniform interfaces Loose coupling

++ResourceOrientedArchitectureAgile H

Dev H

Dep L

Test H

Perf H

Scale H

MicroservicesArchitecture

MSA: API REST Topology MSA: Application REST Topology

MSA: Messaging topology

Client side discovery

Server side discovery

++MicroservicesArchitectureAgile H

Dev H

Dep H

Test H

Perf L

Scale H

Cloudbasedarchitectures

Watchdog

Stateless component

Agile H

Dev L

Dep H

Test L

Perf H

Scale H

++Cloudbasedarchitectures

Summary

Programming is like sex. One mistake and you have to support it for the rest of your life. (Michael Sinz)

ThankYou