Performance architecture.

    Write a 2- to 3-page summary of 3 or 4 case studies including: Define performance architecture. Describe the issue or challenge the retailer wished to solve in each case study. Discuss how they used the technology and their outcome. Discuss common challenges among the retailers and how the solutions may relate to GTR. Explain how you think AWS can help GTR create performance architectures based on outcomes for the retailers in the case studies. Cite the study and any other sources using APA guidelines and provide attribution, where appropriate.