Signal
Joshua Project publishes a global layer identifying people groups, unreached people groups, frontier groups and unreached population. That gives the Commission Map a starting point: need must be read by people, region and language, not only by national border.
Map reading
The map layer should classify every signal with a clear scope: global, regional, country, language or people group. Data without scope becomes noise. Data public to scope becomes a reading instruction.
Mission implication
The map becomes useful when it shows concentration of need, not only the shape of the world. The Journal must always explain what the signal changes in the reading of the Great Commission.
Study link
The inductive studies on the site prevent the map from becoming a statistics layer alone. Observation, progressive questions, responses, conclusion and application remain the reading discipline.