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Effective data collection, management, and interpretation are critical to understanding client progress, program operations, and overall organizational impact. Yet, to translate raw data into actionable insights, staff need clear and consistent guidance on what the data represents. A data dictionary serves this purpose by defining and describing each data element: how it is measured, used, and maintained within the organization. This research brief highlights the practical and strategic benefits of developing a data dictionary, from supporting day-to-day operations to advancing long-term evaluation goals. It outlines a step-by-step process for creating one, beginning with an inventory of existing data and ending with the testing of a working draft. The brief also offers sample fields to guide formatting and design choices, along with tips for keeping the dictionary accurate and up to date. Ultimately, this resource is designed to help agencies strengthen their data infrastructure and enhance their capacity to track progress, assess outcomes, and demonstrate impact.
RTI shares its evidence-based research - through peer-reviewed publications and media - to ensure that it is accessible for others to build on, in line with our mission and scientific standards.
