Determine best approach for executing a series of jobs

Determine if all of the jobs needed to execute in the pipeline can executed as Array Jobs, or if a more sophisticated approach with Amazon Lambda functions as the glue are necessary.

See: https://docs.aws.amazon.com/batch/latest/userguide/array_jobs.html

Start with the linked AWS Batch array jobs documentation and inspect how this repository's pipeline defines and executes its series of jobs. Document whether all required jobs fit array jobs or whether AWS Lambda is needed as orchestration glue; the issue names no repository files or tests.

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