Review the Enterprise Data Warehouse architecture shown in the figure 1.1 [10 % ] (a) identify all possible architectural issues with detailed explanation? (b) Suggest a modification to the architecture, so that we can save 2-4 hours of load time and still will be able to create and run reports (no multi-dimensional analysis)? (c) Explain the reasoning behind North American DW as a source to the Global DW? Is this a right approach based on the concepts we learned? For more data storage.