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Safety systems are defined by the decisions made early in a project. From hazard and risk assessment to Safety Integrity Level determination, Safety Requirements Specification development, Functional Safety Assessment and OT Security reviews, organizations must make informed decisions throughout the lifecycle of safety-related systems.

HIMA Consulting supports these decisions with independent expertise in Functional Safety, cybersecurity and compliance. Based on experience across industrial and rail applications, we help customers understand risks, define requirements and maintain safe and reliable operation.

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HIMA Consulting

Decisions That Shape Functional Safety

Understanding risks, requirements and operating conditions is essential to develop reliable and compliant solutions. Throughout the lifecycle, organizations must determine how much risk reduction is required, translate safety objectives into system requirements, demonstrate compliance and manage modifications without compromising safety or availability.

The quality of these decisions directly influences safety performance, project efficiency, operational reliability and long-term lifecycle costs. Early clarity helps avoid unnecessary complexity, expensive redesigns and unexpected findings later in a project.

Understanding Risk

Identify hazardous scenarios, evaluate their potential consequences and determine where additional risk reduction may be required.

Defining Risk Reduction Requirements

Establish the required level of risk reduction and determine the appropriate Safety Integrity Level based on the identified risks.

Translating Risk into Requirements

Develop Safety Requirement Specifications and safety concepts that define how safety objectives will be achieved in practice.

Demonstrating Safety Performance

Confirm that systems and safety functions meet specified requirements and achieve the intended level of performance.

Maintaining Safety Through Change

Maintain functional safety throughout operation, maintenance, modernization and system modifications while preserving the required level of risk reduction.

Reviewing and Strengthening Functional Safety

Evaluate existing systems, processes and documentation to identify improvement opportunities and support continued compliance with current requirements.

Why HIMA

Independent Expertise for Critical Decisions

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Independently organized and technically focused, HIMA Consulting supports organizations in making informed decisions throughout the lifecycle of safety-related systems.

Independent Perspective
Objective assessments and recommendations based on technical requirements and applicable standards.

Functional Safety Expertise
Experience with hazard and risk assessment, SIL determination, Safety Requirement Specifications, verification and Functional Safety Assessments.

Lifecycle Understanding
Support across the Functional Safety lifecycle, from risk assessment and specification through operation and management of change.

Critical Decisions in Functional Safety

How much risk reduction is required?

Every safety-related system begins with understanding risk. Hazard and risk assessments help identify hazardous scenarios, evaluate potential consequences and determine the level of risk reduction required.

HIMA supports customers with established methodologies including HAZOP, LOPA, Risk Graph analysis and SIL determination to create a sound basis for engineering decisions.

How are requirements defined?

The results of risk analysis must be translated into clear and verifiable requirements.

HIMA supports the development of Safety Requirement Specifications (SRS), Functional Safety Management concepts and safety-related design requirements that form the basis for implementation, validation and operation.

How can compliance be demonstrated?

Demonstrating compliance requires evidence that systems, processes and activities align with applicable standards and project requirements.

HIMA supports customers with Functional Safety Reviews, Functional Safety Assessments, audits, verification activities and independent evaluations of existing systems and practices.

How can safety and security be addressed together?

As industrial environments become increasingly connected, safety and security must be considered together. HIMA supports customers with OT Security Reviews, cybersecurity risk assessments and the evaluation of security measures for safety-related environments based on applicable standards and industry best practices.