Enterprise architecture addresses the double challenge of increasing IT efficiency while continuing business innovation. Organizations can use enterprise architecture frameworks to manage system complexity and align business and IT resources. An enterprise architecture approach can help align business and IT resources and conform them to fundamental principles and common methodologies governing the entire information systems development process. In that sense, architectural frameworks are a convenient way to support such methodologies and separate roles that facilitate and implement these methodologies as needed. Still, many organizational and technical enterprise architecture challenges remain.