Strategic goals and business requirements should drive IT solutions, and the unit examines how enterprise architecture (EA) and enterprise modelling contributes to this alignment. Enterprise architecture is about understanding all of the different People, Processes, Business and Technology elements that go to make up the enterprise and how those elements interrelate. The unit emphasizes the importance of planning and managing IT from an architectural perspective and highlights how an agile systems architecture can more effectively support changes in business strategy. The unit examines some of the common EA frameworks and introduces specific EA documentation and modelling techniques that support strategy and business-driven views of the enterprise.