Case Study 1:
Stock Profit Ltd, India’s first discount broker, offers zero brokerage & unlimited online share trading in Equity Cash. Design a system to capture real-time stocks data from source (i.e. Yahoo.com) and calculate the profit and loss for customers who are subscribed to the tool. Finally, store the result in HDFS.
Case Study 2:
You are a SEO specialist in a company. You get an email from management wherein the requirement is to get Top Trending Keywords. You have to write the topology which can consume keywords from Kafka. You have given a file containing various search keywords across multiple verticals.
Case Study 3:
You have to build a system which should be consistent in nature. For example, if you are getting product feeds either through flat file or any event stream you have to make sure you don’t lose any events related to product specially inventory and price.
If we talk about price and availability it should always be consistent because there might be possibility that product is sold or seller doesn’t want to sell it anymore or any other reason. However, attributes like Name, description doesn’t make that much noise if not updated on time.
Case Study 4:
John wants to build an e-commerce portal like Amazon, Flipkart or Paytm. He will ask sellers/local brands to upload all their products on the portal so that users/buyers can visit portal online and purchase. John doesn’t have much knowledge about the system and he hired you to build a reliable and scalable solution for him where buyers and sellers can easily update their products.