At Yahoo! I worked in the Ad Systems Product team. There were 4 Product Managers to start, and there were 7 at the end. After a few months of learning about the business model of advertising and the creation of ad campaigns, it became apparent that not everybody had the same understanding of the systems. I collected task flows from each of the 4 PMs and realised that the interface of one flow to the others, where one flow ended and where the next flow started, did not match up. To resolve the issues I conducted an ambitious project to understand what everybody thought they did, watched what they actually did did, and where the pain points were located in te work they did. The artifact was a journey map for ad campaigns. It was essentially a super-charged task flow. To review the completed flow, it took a couple of weeks of meetings with stakeholders, Product Managers, Engineering, and users to make all the necessary connections. As well, the campaign proposal and the final campaign processes were almost identical, but user targeting and ad positions could not be moved between the tools so that any campaign had to be created and then replicated.
This document has several layers. The top level includes all the products that users needed to create and manage campaigns. The second layer is all the roles involved in the process, including internal and external actors. The third layer is all the flows and sub-flows. The bottom layer is the external users and their inputs into the campaign, and what they consumed.