Electronic document routing, approval and tracking. Also known as Workflow Services or workflow (workflow). The Streamlyne infrastructure service that electronically routes an e-doc to its approvers in a prescribed sequence, according to established business rules based on the e-doc content. See also workflow (workflow. (Workflow Services / workflow) The Streamlyne infrastructure service that electronically routes an e-doc to its approvers in a prescribed sequence, according to established business rules based on the e-doc content.