I. Concept of system architecture By Edward Crawley, Bruce Cameron, And Daniel Selva co-authored SYSTEM ARCHITECTURE: Strategy and Product Development for Complex Systems. In the book, the word "system" is defined in this way: a system is a set of entities and their relationships, whose functions are greater than the sum of their respective functions. In other words, the function has to be 1+1>2, which is called emergence. For example, a pile of bricks and wood cannot provide shelter from the wind and rain, but they can form a warm house. The function of the house is greater than the sum of the functions of the pile of materials, so the house is a system. Now that you know what a system is, let's look at what a system architecture does: 1) Determine the form and function of the system. To put it bluntly, it's analyzing requirements. 2) Determine the entities, forms, and functions of the entities in the system. It's dividing up the system. To accomplish this tas
API is short for Application Programming Interface (API), which describes a class library's characteristics or how to use it. Your personal library may contain "API documentation" of available functionality. A REST API in API Gateway is a collection of resources and methods integrated with back-end HTTP endpoints, Lambda functions, or other AWS services. You can use API Gateway features to help you with all aspects of the API lifecycle, from creation through monitoring your production APIs. API Gateway REST APIs use a request/response model where a client sends a request to a service and responds back synchronously. This kind of model is suitable for many different kinds of applications that depend on synchronous communication. When many people refer to API documentation these days, they often refer to an HTTP API that might share your application data over the web. For example, Twitter provides an API that allows users to request tweets in a specific format to easily i
https://www.baeldung.com/junit-5-migration According to this blog what I study for the Junit 4 and Junit5: JUnit 5 is a powerful and flexible update to the JUnit framework, providing various improvements and new capabilities to organize and describe test cases and to help understand test results. Upgrade to JUnit 5 is quick and easy: Just update your project dependencies and start using the new functionality. JUnit 4 bundles everything into a single JAR file. JUnit 5 consists of three sub-projects, namely JUnit Platform, JUnit Jupiter, and JUnit Vintage. 1. JUnit platform It defines TestEngine's API for developing new testing frameworks that run on the platform. 2.JUnit Jupiter It has all the new JUnit annotations and TestEngine implementations to run tests written with those annotations. 3.JUnit Vintage Support for running tests written by JUnit 3 and JUnit 4 on the JUnit 5 platform. But here are four strong reasons to start writing new test cases with JUnit 5: JUnit 5 takes advan
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