1. 企业架构：
顾名思义，企业架构是一个过程，用于提供结构和系统的整体、自上而下的视图，并使业务战略愿景与其信息技术保持一致。它只是通过生产力、敏捷性、产品和服务及时性、收入增长和成本降低来改善组织影响。
2. 业务架构：
顾名思义，业务架构是一个分析现有业务函数运行情况的过程，以便在出现任何问题时可以对其进行改进，或者可以开发一个非常注重流程和技术的新业务函数。这完全是关于业务解决方案和组织变革，以实现业务目标。
企业架构和业务架构的区别：
|
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. |