Final answer:
The correct managerial tool for assessing the environment for strategic planning is Environmental Scanning. It collects details about external and internal factors that can influence an organization's future, informing SWOT analysis and decision-making.
Step-by-step explanation:
The managerial tool used to assess the environment in order to gather important information for strategic planning is known as Environmental Scanning.
This process involves observing and analyzing external and internal elements that may impact the organization's future performance. Environmental Scanning enables companies to understand their current situation, predict trends, and plan strategically to either take advantage of opportunities or to mitigate potential threats. While SWOT Analysis is a related tool that helps identify internal Strengths and Weaknesses, as well as external Opportunities and Threats as part of strategic planning, it relies on the information gathered from Environmental Scanning to be effective. In contrast, Survey Analysis and WOTS Analysis are not primarily focused on the broad assessment of the environmental context in which a firm operates.