As with any domain of EA (business, info/data, application, technology), you must establish a view, value proposition, and advocate/sponsor to apply architecture at the enterpise level. Without that, you continue the cycle of silo-oriented decision-making, design, and solutions.
Enterprise Application Architecture (EAA) is typically the second-most mature and well-defined area of EA, after Enterprise Technology Architecture (ETA). Makes sense, as applications are seen to be the responsibility of the IT group as much as the infrastructure. ETA is often described/organized in terms of domains (i.e. server, middleware, network, database), while EAA is often organized … Read more