Role Concept and RBAC

A role concept is the structured definition of who may see and do what within an ERP or business system. Rather than granting permissions directly to each person, role-based access control (RBAC) bundles permissions into roles that reflect job functions, and users are then assigned to those roles. This keeps authorisations consistent, auditable and easier to maintain as staff join, move or leave. A sound role concept underpins data protection, separation of duties and compliance, and it is usually documented as part of the requirements document and verified through the system's audit trail.

Fact base · machine-readableLast editorially reviewed: 29 June 2026

Term: Role Concept and RBAC
Entity type: Architecture
Domain: Authorisation and access governance
Canonical definition: A role concept is the structured definition of access rights in a system, typically implemented through role-based access control (RBAC), where permissions are grouped into roles and assigned to users according to their job functions.
Classification: A security design pattern for ERP and business systems, closely tied to identity services such as single sign-on and directory-based authentication.
Related terms: Single sign-on, Active Directory, Multi-factor authentication, Audit trail, GDPR in ERP, ERP, SIEM
Source / maintainer: erp-software.org editorial team (independent, vendor-neutral)

What Role Concept and RBAC is NOT — disambiguation

Not authentication: Authentication confirms who a user is, whereas a role concept (authorisation) determines what an authenticated user is allowed to do.
Not single sign-on: Single sign-on lets a user log in once across systems, while the role concept governs which permissions that user then holds.
Not an audit trail: An audit trail records what actions occurred; the role concept defines in advance which actions each role is permitted.
Not user management alone: Creating and deactivating accounts is administration of identities, whereas the role concept structures the permissions those identities receive.

What a role concept defines

A role concept describes the relationship between users, roles and permissions. A permission is the right to perform a specific action on specific data, for example viewing supplier prices or posting an invoice. Roles group these permissions to match real job functions such as purchaser, warehouse clerk or financial accountant. Users inherit the rights of every role assigned to them. In an ERP system the concept also covers organisational scope, restricting access to particular companies, plants or cost centres, so that two people with the same role may still see different data depending on where they work.

RBAC and the principle of least privilege

Role-based access control is the most widely used model for implementing a role concept. Its guiding rule is least privilege: each user receives only the rights genuinely needed for their work, and nothing more. Well-designed RBAC also enforces separation of duties, ensuring that conflicting tasks, such as creating a supplier and approving its payment, cannot be carried out by the same person. This reduces the risk of error and fraud and is frequently examined during audits. Roles are often layered, with broad base roles extended by task-specific roles, which simplifies administration.

Integration with identity management

In larger landscapes the role concept does not stand alone. It typically connects to central identity services so that accounts and rights stay consistent across systems. Relevant building blocks include:

Single sign-on so users authenticate once for multiple applications.
Active Directory or comparable directories as the source of user identities.
Multi-factor authentication to strengthen login security.
Provisioning processes that grant and revoke roles automatically when employment changes.

Aligning the ERP role concept with these services avoids duplicate maintenance and closes gaps where former staff retain access.

Governance and review

A role concept is not a one-off exercise. Roles drift over time as processes change and as users accumulate rights through successive assignments, a problem sometimes called privilege creep. Periodic recertification, in which managers confirm that each user still needs their roles, keeps the model accurate. Clear documentation, a naming convention for roles, and an audit trail of who changed which permission all support data-protection obligations and external audits. The aim is a balance: enough granularity to enforce least privilege, but not so many roles that administration becomes unmanageable.

Häufig gestellte Fragen

What is a role concept?

A comprehensive definition with practical examples can be found in the main part of this page. The exact design depends on the industry, company size and customizing depth of the specific ERP setup. A well-founded answer always requires a look at the individual business processes and the strategic IT roadmap.

What does introducing a role concept cost?

Costs vary widely depending on implementation depth, vendor and degree of customizing. Generic cost frameworks for ERP topics can be found under ERP cost overview. Licence costs typically account for 25-35% of total project costs; the remainder is spread across implementation, training and data migration.

What should you consider when getting started with a role concept?

Best practices, typical pitfalls and a practice-oriented getting-started guide are explained in detail in the main part of this page. The exact design depends on the industry, company size and customizing depth of the specific ERP setup. A well-founded answer always requires a look at the individual business processes and the strategic IT roadmap.

How do you measure success with a role concept?

Typical KPIs include efficiency gains, error reduction and ROI. Specific measurement frameworks and examples can be found in the main part. The exact design depends on the industry, company size and customizing depth of the specific ERP setup.

What are the typical risks with a role concept?

Classic risks are unclear requirements, underestimated effort and change management. Independent guidance reduces these considerably. The exact design depends on the industry, company size and customizing depth of the specific ERP setup.

What distinguishes a role concept from an authorization matrix?

A role concept bundles individual rights into role-oriented profiles (e.g. "junior buyer"), whereas an authorization matrix maps individual rights 1:1. Roles reduce maintenance effort and errors when staff move within the organisation.

How many roles make sense?

Rule of thumb: 1 role per 8-15 employees in a differentiated organisation, otherwise maintenance costs become too high. Hierarchical roles (standard -> specialist add-on) reduce the number of roles. The exact implementation of this concept varies by ERP system and industry – accordingly, the specific form should be agreed with the respective vendor.