What is Enterprise Architecture

There are many definitions for Enterprise Architecture out there. Here are 3 definitions that we really like:

“An enterprise architecture (EA) is a conceptual blueprint that defines the structure and operation of an organization. The intent of an enterprise architecture is to determine how an organization can most effectively achieve its current and future objectives.”
Source: https://searchcio.techtarget.com/definition/enterprise-architecture

"Enterprise architecture (EA) is a discipline for proactively and holistically leading enterprise responses to disruptive forces by identifying and analyzing the execution of change toward desired business vision and outcomes."
Source: https://www.techopedia.com/definition/24746/enterprise-architecture-ea

"…a discipline for proactively and holistically leading enterprise responses to disruptive forces by identifying and analyzing the execution of change toward desired business vision and outcomes. EA delivers value by presenting business and IT leaders with signature-ready recommendations for adjusting policies and projects to achieve target business outcomes that capitalize on relevant business disruptions."
Source: https://www.gartner.com/it-glossary/enterprise-architecture-ea/