Enterprise is a complex system
LEA is developed based on the following fundamental:.Enterprise is a complex system
.EA is human centric.
.EA is holistic architecture approach
.EA to enable agility via simplicity.
.EA to embrace the constant changing world.
LEA does not only overcome the challenge of stovepipe system but also enable agility in adapting constant change. It address the issue of stovepipe system via the engineering of reuse and consolidation to identify common enterprise primitives. It enable agility by encapsulate the complexity in the enterprise primitive to keep architecture solution simple.
ENTERPRISE IS A COMPLEX SYSTEM
LEA draws upon the theory of Complex Adaptive System ; The term complex adaptive systems (CAS) was coined at the interdisciplinary Santa Fe Institute (SFI), by John H. Holland, Murray Gell-Mann and others. Enterprise is a complex adaptive system rather than an enterprise wide solution architecture in a command and control approach. — it encompasses more than one theoretical framework and is highly interdisciplinary, seeking the answers to some fundamental questions about living, adaptable, changeable systems. Examples of complex adaptive systems include the stock market, the ecosystem, manufacturing businesses and any human social group-based Endeavour in a cultural and social system such as political parties or communities. It is part the complec system theory. Welsh scholar Dave Snowden describe the complex system with Cynefin framework to illustrate the evolutionary nature of complex systems, including their inherent uncertainty,
LEA address the complex adaptive system of enterprise architecture by learning experience from the ancient Chinese wisdom. It leverage on holistic concept of Tao; the universal primitives of Bagua [4]; the fundamental of change Yin-Yang [5]; the rule of change the book of changes[3]; The coherence of change in Wu-Xing. It was the theory used by Chinese to address their complex adaptive systems of culture, medicine, music, military strategy and martial arts. It provided guidance and structure to an ever-changing environment.
The concept to architect the enterprise as a complex adaptive system is converging in the EA industry. The Gartner group explored 'Emergent Architecture' [1] at Gartner’s 2009 Enterprise Architecture Summit in London and Orlando:
“Egham, UK, August 11, 2009 — Enterprise architects must adopt a new style of enterprise architecture (EA) to respond to the growing variety and complexity in markets, economies, nations, networks and companies, according to Gartner, Inc. Analysts advised companies to adopt ‘emergent architecture’, also known as middle-out EA and light EA, and set out definitions of the new approach.”
LEA STRATEGY
LEA take the following strategy to overcome the following challenge on:
. EA requires significant investment on time and cost.
. Lack of buy-in from stakeholders.
. Become obsolete before ink dry.
Bridge between business and engineering community
EA serve as the bridge between business and engineering community to integrate the power of left/right brain.
The concept of right brain and left brain thinking developed from the research in the late 1960s of an American psychobiologist Roger W Sperry. He discovered that the human brain has two very different ways of thinking. One (the right brain) is visual and processes information in an intuitive and simultaneous way, looking first at the whole picture then the details. The other (the left brain) is verbal and processes information in an analytical and sequential way, looking first at the pieces then putting them together to get the whole. Sperry was awarded a Nobel Prize in 1981, although subsequent research has show things aren't quite as polarized as once thought (nor as simple).
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