BDS Security Design AG is a Bern consultancy whose dedicated fire-protection practice plans and delivers projects across VKF quality-assurance levels 1–4, producing object-specific, risk-based fire-protection concepts by recognised engineering methods — including in-house computer-aided fire and smoke (CFD) simulation to verify concepts and dimension smoke-extraction systems. Fire engineering is a distinct, substantive division alongside the firm’s security and data-centre planning. Its engineering outputs support the responsible professional’s judgement, not replace it.