3.1 Hierarchical structure of the job network

In JP1/AJS3, the elements in an application to be automated are known as units.

Each of the individual processes involved in an application is defined as a unit called a job. A job is the smallest unit. You then arrange the defined jobs in order of execution, creating a network of jobs grouped together to form a unified application. This collection of jobs is called a jobnet.

The following figure shows the relationship between a jobnet and jobs.

Figure 3‒1: Jobnet and jobs

Jobnets themselves can be grouped into management units called job groups and planning groups.

This approach allows all the processing in an automated application, right down to most detailed individual processes, to be managed systematically. The management levels of a job network are illustrated in the following figure.

Figure 3‒2: Job network management hierarchy

The entire set of units is managed as a control unit called a scheduler service. By default, the scheduler service is defined as the root job group (top-level job group) or AJSROOT1, which manages all units defined below it.

Each scheduler service can have its own environment. This means that you can set up a test environment for a new application. By launching multiple scheduler services concurrently, you can run multiple independent applications (jobnets) in parallel, each under a different root job group.

Organization of this section

• 3.1.1 Units

• 3.1.2 Building a jobnet

• 3.1.3 Applications that use macro variables

• 3.1.4 Creating a job flow

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