Published in Expedia Group Technology·Jul 12Onion ArchitectureLet’s slice it like a Pro — Domain-driven design (DDD) is an approach to developing software for complex needs by deeply connecting the implementation to an evolving model of the core business concepts. The domain is a sphere of knowledge. It refers to the business knowledge that our software is trying to model. Domain-Driven Design centres on…Microservices7 min read
Jan 18Understanding Bidirectional Dijkstra’s AlgorithmDijkstra’s algorithm is well known shortest path finding algorithm in a graph. But there exists Bidirectional Dijkstra algorithm as well which runs two simultaneous searches, one in the forward direction from source and the other in the backward direction from destination until they meet eventually. …Bidirectional Dijkstra4 min read
Jan 1Testing Automation, What are Pyramids and Diamonds?Testing pyramids (which are also referred to as Test Automation pyramids) is a framework that lays out the different types of tests that should be included in automated test suites. Producing high-quality software and reducing the time required to identify breaking change is not a trivial task. The testing strategy…Test Automation4 min read
Dec 23, 2021PACELC Theorem & Distributed DatabasesIn this article we are going to cover PACELC Theorem which is an extension for CAP Theorem and see how how distributed databases have limitations and tradeoffs regarding Network Partition, Consistency, Availability and Latency. What is P.A.C.E.L.C. ? Consistency Consistency means that all clients see the same data at the same time, regardless of node…Pacelc4 min read
