You are tasked with creating a parser for a simple query lan…

You are tasked with creating a parser for a simple query language (e.g., FIND User WHERE name = ‘John’). This involves representing the components of the language (keywords, operators, values) as objects and then interpreting a syntax tree built from these objects. Which pattern is specifically designed for this purpose?

Consider an e-commerce application’s order processing pipeli…

Consider an e-commerce application’s order processing pipeline. An order must first pass a validation check, then an inventory check, and finally a fraud check. If any check fails, the process stops. If it passes, it is sent to the next handler. This represents a loosely coupled sequence of processing objects. Which pattern is designed for this scenario?