The Integrated Management Effectiveness Tool (IMET) is an approach to support protected areas planning, monitoring and evaluation and to improve management patterns and conservation outcomes. IMET is supported by a computer-based application that collects, organizes and analyses data to facilitate informed decision-making for protected area management, operations and planning. The tool is available in both online and offline versions. It contains several forms which allow for the compilation of a variety of data from many sources: raw data, documents and personal knowledge from several stakeholders such as management teams, scientists and community members. IMET structures the information with quantified targeted outcomes, and its internal statistics module provides a score-based estimation of level and quality of management with visual graphics of the relative contribution of each indicator to management effectiveness.