What is the relationship between Enterprise Architecture and business architecture?

Business architecture serves as a fundamental and essential component within the broader, comprehensive framework of Enterprise Architecture (EA), acting as a vital bridge between business strategy and technology implementation. Its primary focus lies in thoroughly understanding and clearly defining the overall business strategy, the core capabilities that drive the organization, and the key processes that underpin daily operations, ensuring a holistic view of how the business functions. This discipline plays a critically important role in ensuring that IT systems and technological resources are properly aligned, coordinated, and integrated to effectively support and propel the business objectives forward, thereby enabling the organization to achieve its goals efficiently and sustainably over the long term.