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How would you explain it to a newbie web developer or programmer with some real world organization example (like say facebook company or Google company)?
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The groupId is a parameter indicating the group or individual that created a project, which is often a reversed company domain name. The artifactId is the base package name used in the project, and we use the standard archetype.
groupId This element indicates the unique identifier of the organization or group that created the project. The groupId is one of the key identifiers of a project and is typically based on the fully qualified domain name of your organization. For example org. apache. maven.
POM ExampleAll POM files require the project element and three mandatory fields: groupId, artifactId, version. Projects notation in repository is groupId:artifactId:version.
From maven.apache.org, Naming Conventions:
artifactIdis the name of the jar without version. If you created it then you can choose whatever name you want with lowercase letters and no strange symbols. If it's a third party jar you have to take the name of the jar as it's distributed. eg.maven,commons-math
groupIdwill identify your project uniquely across all projects, so we need to enforce a naming schema. It has to follow the package name rules, what means that has to be at least as a domain name you control, and you can create as many subgroups as you want. Look at More information about package names. eg.org.apache.maven,org.apache.commons
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