MS Visio, Requirements Elicitation, Bpmn, Process Modeling, Uml, Business Process Analysis, WCO Kyoto Convention, WCO Data Model, WCO SAFE Framework, Draw.io, UN CEFACT Recommendations, Requirements management tools, Solution validation, UNESCAP Trade Facilitation Framework, Customs and logistics operations, Miro, Backlog prioritization, EDIFACT Standards