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Difference between Enterprise Architecture and Business Architecture

Last Updated : 21 Jan, 2021
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1. Enterprise Architecture :
Enterprise Architecture, as name suggests, is a process to provide holistic, top-down view of structure and systems and align business strategic vision with its information technology. It simply improves organizational impacts through productivity, agility, product and service timeliness, revenue growth, and cost reduction.

2. Business Architecture :
Business Architecture, as name suggests, is a process to analyze operation of existing business function so that if there is any issue then it can be improved or one can develop a new business function with strong focus on processes and technology. It is all about business solutions and organization changes to deliver business objectives.

Difference between Enterprise Architecture and Business Architecture :

Enterprise Architecture 

 Business Architecture  

It refers to process by which organization standardize and organize IT infrastructure to meet business requirements.   It refers to process by which we can align strategic objective and tactical demands of organization as well as provide better understanding of organization.  
Its main purpose is to provide framework, tools, and perspectives to take business from its current position to desired position.  Its main purpose is to ensure that all implementation, changes, and enhancements to business processes and functions are in support of and traceable to business strategy.  
It is all about designing business infrastructure and organizational structure on basis of vision, function, and strategic intent.  It is all about planning, coordinating and implementing organizations business objectives.  
It reduces redundancy, complexity, information silos, business risk associated with IT investments, etc.   It reduces process cycle times, reduce operational costs, improve performance, etc. 
It helps to develop organization’s system and processes with a focus on business strategy.   It helps in smooth functioning of various units of organization, both inside and outside enterprise.  
Responsibilities of enterprise architect includes overseeing, improving and upgrading enterprise services, software and hardware, develop data modules, provide guidance for new user about how to install, etc.  Responsibilities of business architect includes clarifying purpose or goals of company, assisting department leaders to ensure resources are allocated as per necessity, planning and improving for optimizing business, etc.  
It is more information-centric than business architecture.  It is more process-centric and less information-centric than enterprise architecture.  
It focuses on what business knows.   It focuses on what business does.  


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