Enterprise Architecture(EA) Maturity Models

What EA Maturity Models exist?• There is no standard model for EA Maturity• TOGAF refers to US Doc ACMM • As of July 2011, I found the following EA

Maturity Models in the following categories: -Informal, vague, less used or less recent

• Maturity Model from NASCIO• EA Maturity Model from MIT Sloan• Enterprise Architecture Scorecard• Extended Enterprise Architecture Maturity Mo

del v2• Enterprise Architecture: A Maturity Model Bas

ed on Benefits Realization by Architecture and Governance Magazine

• Beam Research and other consultancy firms• WikiDot

More Formal and Structured

• ACMM - US Government Department of Commerce and Eavaluator from enterprise-architecture.com

• ITScore for EA from Gartner• EA Maturity Assessment From Forrester• EAMMF Version 2.0 from US Government Acco

untability Office

This presentations focuses on these models

Common Traits for all EA Maturity Models

• Most are modelled on the Capability Maturity Model Integration (CMMI)

• The model has a number of levels(from 4-7) of maturity• Each level has an attribute or characteristic that can be rated

based on the maturity of the activities performed by the EA function

• Some models make recommendations in what are the areas of improvement

• Some provide tools to help assess your maturity

US Government - Doc US ACMM• Open

– Downloadable for free, recommended by TOGAF• Levels

– Six – None, Initial, Developing, Defined, Managed and Optimizing • Attributes: -

– Uses 9 characteristics• Architecture Process• Architecture Development• Business Linkage• Senior Management Involvement• Operating Unit Participation• Architecture Communication• IT Security• Governance• IT Investment and Acquisition Strategy

• Provides a means to do the measurement by not a tool as such. However enterprise-architecture.com provides a tool to assist in assessment called Eavaluator.

• Comment : Very good, easy to follow

ITScore for Enterprise Architecture

• Closed – Only for Gartner clients

• Levels– Initial, Developing, Defined,

Managed and Optimizing

• Attributes: -– Stakeholder support and

communication, team resources, EA development method, process integration, deliverables, disclosure and compliance, metrics, and stakeholder perceptions

• Provides a tool

ITScore Diagnostic Tool is used to evaluate your EA maturity

Measurement

Comment : Very good, easy to follow

Forrester EA Maturity• Closed

– Only for Forrester clients

• Levels– 1,2,3,4,5

• Attributes: -– Uses Archetype-Based

Approach• Orientation ( Business or

Technology )• Focus ( Project or Strategy )

• Provides a tool• Comment: A different take but

too lightweight

Measurement

Has an Excel Spreadsheet to ask questions that will feed into an assessment

US Government General Accounting Office - A Framework for Assessing and Improving Enterprise

Architecture Management• Open

– Downloadable for free• Levels

– Seven – Create EA awareness, Establish Commitment and Direction, Create a management foundation, Develop initial EA Versions, Using EA for targeted results, Use EA for transformation and Continuous Improvement

• Attributes: -– Uses 4 success criteria

• Demonstrates Commitment• Provides Capability to Meet Commitment• Demonstrates Satisfaction of Commitment• Verifies Satisfaction of Commitment

• No Tool available• Very detailed and thorough, possibly too heavy

The Levels of Maturity

• Comparing Maturity Levels of the 4 different types of models – Gartner's and ACMM very similar

Maturity Model 0 1 2 3 4 5 6Gartner’s ITScore Initial Developing Defined Managed Optimizing

Forresters’s EA Maturity Assessment 1 2 3 4 5

US Gov ACMM None initialUnder

development Defined Managed Optimizing

US Gov EAMMFCreate EA

Awareness

Establish Commitment and

direction

Create a management

foundation

Develop initial EA versions

Using EA for targeted results

Use EA for transformation

Continuous improvement

The Attributes of Maturity

• Comparing Attributes of the 4 different types of models – Gartner's and ACMM very similar, however Gartner has simplified the model