Mr. Gaver concluded that the federal enterprise architecture program had mostly failed; this conclusion was corroborated by a similar one made by the federal government at an October 2010 meeting that was held to determine why the federal enterprise architecture program was not "as influential and successful as in the past." A key concern about EA has been the difficulty in arriving at metrics of success, because of the broad-brush and often opaque nature of EA projects. Relationship to other disciplines According to the Federation of Enterprise Architecture Professional Organizations (FEAPO), enterprise architecture interacts with a wide array of other disciplines commonly found in business settings. According to FEAPO: As enterprise architecture has emerged in various organizations, the broad reach has resulted in this business role being included in the information technology governance processes of many organizations. While this may imply that enterprise architecture is closely tied to IT, it should be viewed in the broader context of business optimization in that it addresses business architecture, performance management, and process architecture, as well as more technical subjects. Discussions of the intersection of enterprise architecture and various IT practices have been published by various IT analysis firms. Gartner and Forrester have stressed the important relationship of enterprise architecture with emerging holistic design practices such as Design Thinking and User Experience Design. Analyst firm Real Story Group suggested that enterprise architecture and the emerging concept of the digital workplace were "two sides to the same coin." The Cutter Consortium describes enterprise architecture as an information and knowledge-based discipline. The enterprise architecture of an organization is too complex and extensive to document in its entirety, so knowledge management techniques provide a way to explore and analyze these hidden, tacit, or implicit areas. In return, enterprise architecture provides a way of documenting the components of an organization and their interaction, in a systemic and holistic way that complements knowledge management. In various venues, enterprise architecture has been discussed as having a relationship with Service Oriented Architecture, a particular style of application integration. Research points to enterprise architecture promoting the use of SOA as an enterprise-wide integration pattern. History The first publication to use the exact term enterprise architecture was a National Institute of Standards Special Publication on the challenges of information system integration. The overview states "This panel addressed the role of architectures and standards in support of management throughout an enterprise." This original