1. Light Enterprise Architectureby
John Chi-Zong Wu

2. It is futile to design Enterprise blueprint
EA was initiated to overcome the challenge of silos system via the engineering of reuse and consolidation.
However, inherited from silo system culture, EA is better known as enterprise wide solution architecture blueprint.
It requires significant investment of time and resources for large organization with resources .
The enterprise blueprint become obsolete before ink dry because Enterprise is organic.
EA is an emerging paradigm rather than large scale solution architecture effort.

3. Light EA on Enterprise primitives
Light EA is a light approach to focus on enterprise primitives by learning experiences of the others.
Enterprise primitives are the common knowledge infrastructure which is relatively static.
Parallel to Industry direction on SOA, virtualization and cloud computing
In John Zachman' words “ Enterprise Architecture is the set of primitive, descriptive artifacts that constitute the knowledge infrastructure of the Enterprise.”

4. The purpose of EA
Architecture is a mean rather an end, it is a journey instead of a destination. LEA serve as:
As a visible master plan, LEA see the unseen enterprise big picture and the master plan on how to take advantage of technology evolution.
As a process, LEA is a approach to overcome the challenge of silo system which does not only occurred in IT but also in human resource, budgeting and security.
As a stage for agile to dance.
As a strategy, LEA guide the right strategic direction to predict and adopt change holistically.

5. Basic Idea
LEA establish a visible master plan and focus on establishing enterprise primitive to resolve silo system, in the mean time, it enable agility to adapt change. It close the business performance gaps with segment architecture and solution architecture.
Enterprise
Master Plan
Business
Performance
Gap analysis
Determine
Area of
Under
performance
Segment
Architecture
Solution
Architecture
Learning
Experience of
others
Close
Business
Performance
Gap analysis
Architect
Enterprise
Primitives

6. Light EA is not a big bang
Light EA is not a big bang approach to design the Enterprise blueprint, because it is futile under an organic enterprise environment. Instead, it takes the following three level approach.
The master plan to see the unseen enterprise.
The segment architecture as the architecture plan to adapt change.
The solution architecture to address a specific requirement.

7. Strategy to adapt change
LEA invest on static master plan and enterprise primitives to adapt change.
Although enterprise change constantly, there are some area change rapidly and some change gradually similar to water flow in a channel.
Solution architecture is unique to a set specific requirements at a specific time.
Master plan and enterprise primitive are relatively static.

8. Paradigm Shift
The EA professional need a paradigm shift to understand EA.
It is a hard way to understand EA from the top down approach which created silo system to start with.
EA is a paradigm shift from the vertical architecture to cross cutting architecture in horizontal direction.
It is also step into the paradigm of holism from the ontology of hierarchical being.

9. Definition
Enterprise primitives: Enterprise primitives which is derived from enterprise reuse pattern are the build blocks of the enterprise.
Enterprise topology: The visual presentation of the unseen enterprise big picture where every one in the enterprise can find a place for themselves.
Alignment Architecture: Facilitate business community to take advantage of technology evolution
Agility architecture : A cross cut architecture approach for the engineering of reuse, consolidation and interoperability to derive the enterprise primitives.
Coherence Architecture : To plan right architecture for the right people on the right place at the right time.

10. Principles EA is the glue not the guru.
Learning experience of the others.
Focus on EA as a set of enterprise primitives.
Human centric.
Enterprise is organic.
Holistic.
Agility to adapt change.
Serve both business and engineering community.
Facilitate collaboration and reconciliation.
For large and small organization.

11. Strategy
See the unseen enterprise big picture with collaboration and reconciliation.
Learn the right experiences of the other via reference models.
Establish the enterprise primitives instead of bluepirnt.
Resolve silo system and enable agility via the engineering of reuse, consolidation and interoperation.
A three way approach:
Alignment via vertical way.
Agility via horizontal way.
Coherence in circular way.

12. Adapting Change coherently
Light EA model
Enterprise is organic.
Business architecture to see the unseen Enterprise big picture.
Light EA resolve silo systems and adapting change via:
Vertical Alignment architecture.
Horizontal Agility Architecture.
Circular Coherence Architecture.
Adapting Change coherently
Enterprise Business Architecture
References
Reuse
Consolidation
Standardization
Compliance
Align Business Processes
Align Information Technologies
Align Human Resources
Align Budget
Align Security

13. The Light EA in perspective

14. Light EA Method Coherence Architecture Enterprise Topology Segment
Business Arch.
Coherence Architecture
Enterprise Topology
Segment
Scope
Alignment Arch.
Segment Architecture

15. The visible master plan
LEA establish visible enterprise master plan to see the unseen enterprise big picture.
The enterprise topology
The high level business architecture
The alignment architecture
Learning experience of the others for the same line of business and technology category.

16. The Agility Architecture
Agility architecture design the enterprise primitives to resolve silo system and enable agility.
It is a cross cutting architecture approach in horizontal direction.
Agility architecture via:
Engineering of reuse and consolidation.
Governance and compliance.
The out come to establish the enterprise knowledge infrastructure.

17. The Coherence Architecture
Coherence Architecture is the just in time and just right architecture approach.
It is inspired by ancient holistic philosophy.
Segment Architecture is the EA on demand.
Enterprise primitives enable the simplicity and agility.
Empower by the wisdom of seeing the whole and harness with the knowledge of enterprise patterns, it serve well to support enterprise vision and strategic planning.

18. The Coherence Architecture
Coherence model illustrate the concept of right architecture for the right people on the right place at the right time during the change.
It leverage on ancient Chinese five elements (Wu Xing) model with the notional primitives of Metal, Wood, Water Fire and Earth.
The model serve as a strategic and diagnosis tool on the complex system:
Politics.
Business.
Medicine
Society.
Martial Art.

19. Organic addition to Zachman Framework
Both the Zachman framework and the Coherent framework serve as a thinking tool which complementary to each other.
The Zachman framework is a thinking tool for the enterprise primitives.
The Coherent framework add organic consideration.

20. Light EA roadmap

21. LEA Time Line
Planning
LEA see the whole and conduct the holistic analysis at the Initial EA effort ; and establish the common building blocks to enable agility; analyze business performance gap and initiate segment architecture to close business performance gap via transition planning and modernization. It is a continuous architecture effort as shown in the following loop.
Enterprise Topology
High level Business Architecture
Notional Target Architecture
Agility Architecture
Business Performance Gap
Segment Architecture
Organization should be able to establish the initial EA in the first years
Transition plan
Year 1
Modernization

22. The EA Discipline
Enterprise architect serve a glue for all the parts to function together rather a guru to know all.
It consist of a specific set of discipline to distinguish from the other established paradigms.
See the unseen enterprise big picture.
Facilitate collaboration and reconciliation
The engineering of reuse, consolidation and interoperability.
The discipline to learn the right experience of the others.
Stream line governance and compliance processes.
Support strategic planning.