ABB implemented a _____ system to help staff more effectively locate information about company projects and initiatives.

The most fitting choice for this context is a knowledge management system. This type of system is designed to facilitate the organization, sharing, and analysis of knowledge within an organization. By implementing a knowledge management system, ABB enables its staff to effectively find and access information about various projects and initiatives. These systems are specifically tailored to capture, store, and disseminate knowledge, helping employees leverage collective intelligence and improve productivity.

Dynamic knowledge sharing might sound relevant, as it involves the ongoing and fluid exchange of information. However, this term is more about the actions of individuals sharing knowledge rather than a structured system in place to support those actions. A content management system is focused on the management of digital content, which may not encompass the broader scope of knowledge-related tasks. Information security primarily deals with protecting data from unauthorized access, which is not directly aligned with the goal of locating information about projects and initiatives.