A requirement is a need or expectation explicitly expressed, imposed as a constraint to be respected within the context of a project. This project can be a certification project or an organizational project or an information system project.

HOPEX IT Architecture, HOPEX Data Architecture Physical Layer, HOPEX Data Architecture Logical Layer, HOPEX NAF, HOPEX IT Portfolio Management, HOPEX Enterprise Risk Management, HOPEX Power Studio, HOPEX Internal Audit, HOPEX Internal Control, HOPEX LDC, HOPEX Data Architecture Business Layer, HOPEX Risk Mapper, HOPEX Business Process Analysis, HOPEX IT Architecture V2, HOPEX Project Portfolio Management, HOPEX Ideation Management, HOPEX DoDAF V2, HOPEX Privacy Management, HOPEX for the ArchiMate® Framework, HOPEX Data Governance.

Causes-Effects Diagram (Cause-and-Effect Diagram), Library Diagram (Library Diagram), Objective and Requirement diagram (Objective and Requirement diagram), Objective Requirement Diagram (Objective Requirement Diagram), Overview of Applications (Overview of Applications), Project Requirement Diagram (Project Objective and Requirement Diagram), Risk Diagram (Risk Diagram).