Methodology : TOGAF

The Open Group Architecture Framework (TOGAF) is a framework for enterprise architecture which provides a comprehensive approach to the design, planning, implementation, and governance of an enterprise information architecture.

TOGAF is a high level and holistic approach to design, which is typically modeled at four levels: Business, Application, Data, and Technology. It tries to give a well-tested overall starting model to information architects, which can then be built upon. It relies heavily on modularization, standardization and already existing, proven technologies and products.

It is based on four pillars, called architecture domains:

• Business architecture or business process architecture which defines the business strategy, governance, organization, and key business processes of the organization.
• Applications architecture which provides a blueprint for the individual application systems to be deployed, the interactions between the application systems, and their relationships to the core business processes of the organization with the frameworks for services to be exposed as business functions for integration.
• Data architecture which describes the structure of an organization's logical and physical data assets and the associated data management resources
• Technical architecture or technology architecture which describes the hardware, software and network infrastructure needed to support the deployment of core, mission-critical applications