Software engine different from engine
Examples
Engines may be used to produce higher-level services that are applications, and the application developers or the management may choose to call the service an "engine". In the context of the packaging of software components, "engine" means one thing. In the context of advertising an online service, "engine" may mean something entirely different. In the arena of "core software development", an engine is a software module that might be included in other software using a package manager such as NuGet for C#, Pipenv for Python, and Swift Package Manager for the Swift language.One seeming outlier is a search engine, such as Google Search, because it is a standalone service provided to end users. However, for the search provider, the engine is part of a distributed computing system that can encompass many data centres throughout the world. The word "engine" is evolving along with the evolution of computing as it expands into the arena of services offered via the Internet. There is a difference between Google the end-user application and Google the search engine. As an end user, a search is done via a user interface, generally a browser, which talks to the "engine". This is but one way of interacting with the engine. Others include a wide range of Google APIs, which are more akin to the classic notion of an engine (where an engine module presents via an API, only). There is also an overlapping software evolution, a service/application style known as microservices.