Web Services Case Study

Chapter 16, “Case Study: Ordering Service Parts,” is based on a real business problem in that is being addressed today using the Web services platform.

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Lambda is also used with Amazon Cloud Watch (Cloud Watch) to monitor Senao’s new CRM system.

The business migrated all CRM applications to the cloud, utilizing Amazon Elastic Compute Cloud (Amazon EC2) computing power with load balancers and Amazon Relational Database Service (Amazon RDS) to manage customer data.

“For every system access on AWS, we can easily view stored logs on Amazon S3 and parcel through all the logs to find the hacker or unauthorized person trying to access our data center,” says Chang.

“Once we implemented AWS WAF and automated control with Lambda, we were about 90% faster in finding problems with our website and POS systems.”Migration of the CRM system was simple, and in the 3 months since project completion, there has been no downtime reported.

“When one instance or one machine would shut down, our whole CRM system wouldn’t be of service to other systems,” says Chang.

With downtime often approaching one week, Senao was ready to migrate the system to a new solution with high availability.Senao implemented AWS Key Management Service (AWS KMS) to fulfill the PCI DSS requirement on the new site.AWS WAF – Web Application Firewall is used to protect its new and existing web applications, and the company takes advantage of AWS Lambda(Lambda) to automate control of its AWS WAF policies.The business also focuses on an omni-channel strategy that seeks to provide customers with an integrated shopping experience.In 2016, Senao’s management decided they needed an e-commerce site to maintain market share and attract more customers to their stores.This part presents two case studies that tie together all the topics discussed so far.Chapter 15, “Case Study: Car Parts Supply Chain,” is a business-to-business (B2B) scenario that involves a car manufacturer, a car dealer, and a parts manufacturer.Pfizer has now set up an instance of the Amazon Virtual Private Cloud (VPC) to provide a secure environment with which to carry out computations for research and development.The VPC has enabled Pfizer to respond to these challenges by providing the means to compute beyond the capacity of the dedicated computing systems, which provides answers in a timely manner.In addition, when the system hit capacity, developers had to manually add resources and allow it to cool down before accessing CRM data. Another problematic area was the company’s point of sales (POS) system, which like its CRM platform, was built on traditional on-premises data centers.Security issues were arising with its POS and company websites, and Senao struggled to identify the source of breaches.


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