In the bustling metropolis of Innovation City, \"Project Phoenix,\" an ambitious urban revitalization initiative, aimed to transform a dilapidated industrial zone into a vibrant eco-district. Led by the visionary architect Anya Sharma, the project initially garnered significant public support. However, as construction progressed, unforeseen challenges emerged. Residents of the adjacent upscale neighborhood voiced concerns about increased traffic congestion, noise pollution, and potential devaluation of their property values. Local environmental groups raised alarms about the project\'s impact on the area\'s delicate ecosystem, citing insufficient mitigation measures for protecting endangered bird species. City council members, facing mounting pressure from their constituents, began to question the project\'s feasibility and long-term sustainability. Anya and her team realized that the initial stakeholder analysis conducted during the project\'s planning phase was inadequate, failing to fully capture the diverse needs and expectations of all affected parties. Applying the principles of ISO 10005:2018, what would have been the MOST effective proactive measure Anya and her team could have taken at the project\'s outset to prevent these quality-related issues and ensure project success?