Enterprise Architecture Enabling

Organizational Change

Janne J. Korhonen

HUT/SoberIT

It is not necessary to change.

Survival is not mandatory.

− W. Edwards Deming

Business-IT

Divide

IT people are

from Mars

Business people

think they should

stay there

Many bridges have

been tried to build

between business

and IT...

Business

Process

Management Governance

Enterprise

Architecture

Enterprise

Integration /

Service-Oriented

Architecture

Nothing is as dangerous in architecture as

dealing with separated problems. If we split

life into separated problems we split the

possibilities to make good building art.

− Alvar Aalto

Strategic

Tactical

Contract

Coordination

for

Overall Approach: Enterprise As a System

Operational

Real-Time

Coordination

Control

Resources

over

of

Architectural Viewpoints

Process Information Services Integration

Service-Oriented Enterprise

Architecture Framework

Hiekkanen, Korhonen & Lähteenmäki (In progress)

StrategicBusiness

Strategy Layer

Business

strategy; goals

Industry

ontologyDynamic Dynamic BPM

Tactical

Business

Process /

Organization

Layer

End-to-end

process

Enterprise

ontology

Service

ChoreographyBPMS

Operational System Layer Process flowDomain

ontology

Service

OrchestrationESB

Real-timeInfrastructure

LayerActivity

”Sources of

truth”Single / App EAI, EII, ETL

© Authors

Strategy Strategy

As-Is To-Be

Multi-Level Modeling, Design and

Deployment leads to a better solution

Gap

Analysis

Enterprise

Architecture

Process /

Organization

System

Infrastructure

Process /

Organization

System

Infrastructure

Solution

Architecture

System

Architecture

Technical

Architecture

Organization/

Business Process

Layer

Business

Strategy

Layer

Enterprise Metadata Repository facilitates

assessing the impact of change

EMRSystem

Layer

Infrastructure

Layer

Operational

repositories

Level Infrastructure Development Architecture Governance Business

5 Service

marketplace

Sophisticated Run-

Time Considerations

Grid; dynamic

services

Enterprise Architect

Office

On-Demand

4 Event Bus, Process

Engine

Model-Driven

Development;

Process-Oriented

Analysis and Design

Full-Fledged SOA;

Choreography

Center of

Excellence; BPM

governance

Process-

Oriented

3 Monitoring and

security;

Service-Oriented

Analysis and Design

Simple SOA;

Orchestration

Service Factory;

SOA governance

Service-Oriented

SOA Maturity Model Hiekkanen & Korhonen (In progress)

security;

Orchestration

Engine

Analysis and Design Orchestration SOA governance

2 EAI Knowledge

repository, enforced

toolsets

Component

Architecture;

Integrated

applications

Integration

Competence

Center; IT

governance

Tactically

Integrated

1 Data integration,

point-to-point

integration

Best practices and

guidelines, endorsed

toolsets

Layered

Architecture;

Data integration

IT Management;

ad-hoc IT

governance

Function-

Oriented

0 Data and systems

in separate silos

Independent

projects; various

methodologies

Monolithic

Architecture

Siloed structure; no

governance

Survival

© Authors

Process

InitiativeProcess

Initiative

Process

Initiative /

Center of

Excellence /

Enterprise

Steering

Committee

Strategic

Tactical

Agile Governance ModelKorhonen, Lähteenmäki & Hiekkanen (In progress)

Process

Initiative

Initiative

Process

Initiative

InitiativeInitiative /

Process Owner

Integration

Competence

Center / Service

Factory

IT Management

Enterprise

Architecture

Office

Process Project

/ Process

Steward

IT Project / IT

Operations

Tactical

Operational

Real-Time

© Authors

Taxonomy

completeness

Process

completeness

Reference model

guidance

Vendor

Information

availability

Time to value

Enterprise Architecture Frameworks vary in

their focus

Practical

guidance

Maturity

model

Business

focus

Governance

guidance

Partitioning

guidance

Prescriptive

catalog

Vendor

neutrality

Zachman

TOGAF

FEA

Gartner

Adapted from:

“A Comparison of the Top Four Enterprise-Architecture Methodologies”

Roger Sessions, ObjectWatch, Inc. May 2007

Taxonomy

completeness

Process

completeness

Reference model

guidance

Vendor

Information

availability

Time to value

Where do we wish to fall in?

Practical

guidance

Maturity

model

Business

focus

Governance

guidance

Partitioning

guidance

Prescriptive

catalog

Vendor

neutrality