java-tutorials/maven-modules/maven-simple/parent-project/pom.xml

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <artifactId>parent-project</artifactId>
    <version>1.0-SNAPSHOT</version>
    <name>parent-project</name>
    <packaging>pom</packaging>

    <parent>
        <groupId>com.baeldung</groupId>
        <artifactId>maven-simple</artifactId>
        <version>1.0.0-SNAPSHOT</version>
    </parent>

    <modules>
        <module>core</module>
        <module>service</module>
        <module>webapp</module>
    </modules>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-core</artifactId>
                <version>${spring-core.version}</version>
            </dependency>
        </dependencies>
    </dependencyManagement>

    <properties>
        <spring-core.version>5.3.16</spring-core.version>
    </properties>

</project>