Notes

Outline

A coherent EA approach By John Wu WWW.liteEA.com Peaitce@yahoo.com

A coherent EA Concept A coherent EA is  The effort to align IT solutions with information age Enterprise and provide EA value at the right time. It is not only about architecture plan but also the capability to manage ambiguity.

Why ? EA is the coherence of business transformation, system architecture and enable agility. System architecture centric resulted “paralysis by analysis”. Business transformation centric to “come and go”. Agility is enabled based on business and solution. EA value is delivered incrementally via segment architecture

The Coherence Approach concept High level business modeling and solution alignment effort to enable ability Enable agility by establishing  common standards and building blocks Identify the standards and building blocks from the same line of business. Deliver the value of EA by segment architecture based on business need.

Leverage on OMB FEAPMO direction US OMB FEAPPMO approach with consolidate reference models and segment architecture approach.

The coherent EA model A coherent EA is modeled in the dimension of  Enterprise definition, Align solution to business, and enable agility. The three direction work toward the same goal.

The decomposition of  EA model

The coherent approach Coherent approach by coordinating the proper level of effort in business architecture, solution alignment and  the agility at the high level planning and drill down by segment architecture. The Coherent Approach High level Business Architecture to identify the common line of business. High level Solution Alignment to establish the master solution plane. Establish standards and building blocks form the same line of business. Elaboration business architecture and solution alignment by each segment based on business need.

Elaborate by Each Area

To know the Enterprise

See the forest EA must know the enterprise and see the forest. See the forest is a collaboration effort because: Enterprise is large. Enterprise is logical.

High level business architecture Business Modeling Business transformation to information age enterprise. High level effort to identify common Line of Business (LOB) for commonality.

To Align Solution

High level Alignment Align IT solution to business need. High level Solution alignment to establish the master plan for commonality.

Similar to City Plan Align IT solution to business need. High level Solution alignment to establish the master plan for commonality.

To enable agility

Enable agility and simplicity Agility to manage ambiguity. Agility to EA practicality for in time need. Agility, simplicity and practicality do not just happen, it must be designed. Agility is established via  cross-cutting solution.

Cross-Cutting solution Cross-cutting solution among different stakeholders  raise the following challenges. Communication. Learn experience of the others. Reuse. Consolidation. Buy-in from the stakeholders.

Agility via  learn experiences of the others Learning experience of the other is the key for agility. Do not reinvent wheel ! Human have the unique capability to learn experiences of the others but decline to do so. Learn Experience base on enterprise line of business from the high level business architecture.

Learning the right experience Learn Experience from the similar LOB enterprise in  the high level business architecture. Learning the right experience of the other via reference models.

Agility via Reuse and Consolidation Enable agility & simplicity via engineering of reuse and consolidation. Engineering of reuse via repeatable pattern and standardization. It is more logical architecture. Engineering of consolidation base enterprise wide workload and performance requirements, it is more physical architecture.

The Engineering of Reuse Engineering of reuse via repeatable pattern. Implement reuse via standardization.  Standardization for interoperability.

To establish standards via consensus Reuse based on repeatable pattern. Implement reuse via standardization. Standardization for interoperability. EA establish standards via building consensus similar to the political process to establish the law. Establish standards base on business need. Establish the enforceable standards.

The Engineering  Consolidation Engineering of Consolidation  base on workload and performance requirement.  It is more physical  architecture. Agility and simplicity  increase with the level of common foundation.

The Service Oriented EA The service oriented EA consist of the application services, infrastructure services and the data services similar to the hot dog and bun. In the analogy of a city, the infrastructure service is analogy to the roads, the application service is analogy to the buses and the data services is analogy to water company.

Governance to earn agility

Minimize the burden of governance

Segment Architecture

Deliver EA value incrementally

Segment Architecture

Segment Architecture Type

Agile application development