What method is recommended for mapping out an organization's current processes and to design future processes?

Drawing a business model diagram, often using methodologies like Business Process Modeling Notation (BPMN) or tools for visual process mapping, provides a clear and standardized way to illustrate workflows, decision points, and interactions within an organization. This visual representation is crucial for understanding current processes ("as-is") and designing optimized future processes ("to-be"), facilitating communication and analysis among stakeholders.

Querying relational databases is a technical task for data retrieval and analysis, not a method for mapping or designing business processes.

Writing detailed descriptions can be comprehensive but lacks the visual clarity and structure needed for easily understanding and analyzing complex processes compared to diagrams.

Drawing hierarchical matrixes typically represents relationships or organizational structures, rather than the flow and logic of business processes.