We can define Enterprise Architecture (EA) as an application or discipline that manages the processes that support IT infrastructure. It plays a major role in determining the technologies that should be used by directing the relationship between the goals and strategies of the business. In general, it has the function of managing many issues such as the goals, operation, structure, systems and technologies of the business. Enterprise Architecture (EA) combines legacy processes and applications to create a seamless business environment. It is very useful for large businesses that are in the process of Digital Transformation.
Enterprise Architecture (EA) provides support in areas such as system development, IT risk management and decision making to eliminate system failures, errors and security breaches. It is also an ideal way to bring more discipline to the business.
Enterprise Architecture must address the entire business as a whole, rather than individual needs, problems or departments. For this reason, various frameworks have been developed for the effective implementation of Enterprise Architecture. Some of the leading Enterprise Architecture Frameworks are as follows:
Enterprise IT architecture is designed, planned, implemented and managed with TOGAF. Within the framework of TOGAF's principles, businesses create a standard approach to Enterprise Architecture with a common language and compliance methods. TOGAF is a very popular Enterprise Architecture framework. More than 80 percent of the world's leading companies adopt TOGAF.
It is named after one of the founders of Enterprise Architecture. The Zachman Framework includes six architectural focal points and six key stakeholders to help standardize and define IT architecture components and deliverables. It continues to exist as another popular EA methodology.
An architectural framework developed in response to the Clinger-Cohen law that imposes certain requirements for IT effectiveness. Although it is designed for the US government, private companies can also opt for it.
In 2005, Gartner identified some applications for EA and integrated these applications with the company's general consulting practices. It is not an individual framework. It is considered a practical methodology focused on business results.
There are frameworks other than the four common Enterprise Architecture methodologies we listed. For example, the Ministry of Defense Architectural Framework, the European Space Agency Architectural Framework, and the SAP Enterprise Architecture Framework. Frameworks in these examples appear in more niche markets and target individual industries or products. For example SAP Enterprise Architecture Framework:
SAP Enterprise Architecture Framework has been developed by adding a number of changes on top of the most preferred TOGAF. These changes are mostly intended to support some features of service-based architectures.
There are some concerns about the use of Enterprise Architecture frameworks today. Some of these are as follows:
Despite the difficulties we have mentioned, when the Enterprise Architecture frameworks are applied correctly and a good job is achieved, it will add very high value to your business. All businesses trying to rationalize their business models and processes with IT investments need to have an Enterprise Architecture framework.
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