chapter  5
18 Pages

More on Enterprise Architecture (EA)

ByTiffany Pham, David K. Pham, Andrew T. Pham, Mitchell Fox, Larry Rothstein, Michael Weiner, Emily Simoness, Kiran Rijhsinghani

In this chapter, the authors look at the different layers of the enterprise architecture (EA); examine how they fit together as part of the overall framework. There are five layers to the EA: enterprise business architecture, enterprise IT application architecture, enterprise IT data architecture, enterprise IT infrastructure architecture and enterprise security architecture. The authors focus on the enterprise business processes that are geared toward meeting the organization's customer value. The enterprise business processes constitute an organization's value streams, especially the ones that relate directly to the customers' needs. A business process, or a workflow, is what an organization will carry out in order to fulfil its business objectives and goals. A team structure is a group of people organized around a common set of objectives and goals. The Ishikawa diagramming technique can be used to determine major causes of a phenomenon, determine potential root causes of a problem, identify solutions to an identified problem, or optimize a process.