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Risk identification 
Quantification of the probability of occurrence of unwanted events
Consequences assessment
Decision Support Systems

RAMS analysis
Integrated Dynamic Decision Analysis (IDDA)




Optimisation of power consumption
Energy saving
Certification/Assessment of buildings energy performances
Choice of renewable energy souces
Feasibility analysis

Insurance advice and assistance
Legal advice and assistance
Legal, insurance and technical surveys



Risk analysis of complex technological systems, using the methods listed below (among others):

Risk Identification
Hazard and Operability Studies (HAZOP, using conventional methods, such as guide-words, and advanced techniques, such as Recursive Operability Analysis); Failure Modes, Effects and Criticality Analysis (FMECA); Safety Audits; "What if" Analysis; Preliminary Hazard Analysis (PHA); Hazard Identification Analysis (HazId).

Quantification of probability of occurrence
Event and fault-tree analysis.

Calculation of Consequences
Explosion, fire and toxic release models, calculation of consequences of BLEVE, UVCE, CVE, heat radiation (pool and jet fires).

Decision Support
Studies are performed using internationally recognised mathematical models and models developed by ARIA, in order to provide:

  1. Support and assistance in the production of safety reports and other documents to be submitted to the competent authorities;
  2. Support for the selection of engineering solutions
  3. Support for maintenance optimisation.


RAMS analysis
Assessment of the reliability and availability of process plant and complex technological systems using conventional methods, such as FMECA, FTA, etc., and innovative techniques such as Markov chains, Integrated Dynamic Decision Analysis and Fuzzy Logic. The same tools are used to support maintenance planning optimisation (Reliability Centred Maintenance - RCM).

Assessment of the Safety Integrity Level of process plants (ISO 615011), machines (ISO 62061) and automotive sector (ISO 26262).

Development of Reliability Databanks based on company-specific information or data from commercial databanks developed by reference organisations (ESReDA, OREDA, AIChE et al.).
Design of systems for collecting, storing and analysing plant maintenance data in order to develop the above databanks.

Integrated Dynamic Decision Analysis (IDDA)
IDDA is tool able to model the logic of a complex system: it provides a representation of all the possible alternative states into which the system could evolve, as real logical and temporal sequence of events. Each branch can follow several paths (up to eight), with probabilities conditioned by the evolution of the events preceding the branch itself.
In other words, starting from the analyst's description of the system (using an appropriate syntax), IDDA develops an enhanced form of "dynamic" event tree, representing all the sequences of events compatible with the description received from the perspective of both the "logical" construction and the "probabilistic" coherence.
In short, IDDA is concerned with system logic, i.e. the logical-probabilistic connections within a given universe, treated dynamically and in which the logical model is fully integrated with its physical and phenomenological model.
One of IDDA's main advantages is that it offers all the tools that are needed in order to overcome the issue of the binary proliferation of alternatives, limiting the problem to a manageable field.
IDDA is thus capable of providing a model of the system in question, which can be used to support documented, substantiated and well-founded decisions on the basis of an analytical presentation of the possible alternatives and of the "risk" (in terms of probability and consequence) that each entails.


  ARIA assists companies in identifying and implementing occupational health and safety regulations. More specifically, ARIA supplies the following services:
  1. Assessment of general and specific risks (chemical hazards, ATEX, noise, vibrations, electrical hazards, biological hazards, manual handling of loads, exposure to carcinogenic agents, etc.)
  2. Manager of Prevention and Protection Services
  3. Fire hazards analysis and preparation of the documents required in order to obtain the Fire Prevention Certificate issued by the Italian Fire Service
  4. Emergency planning: Internal Emergency Plan (IEP) and emergency procedures
  5. Accident, near-miss and occupational accident analysis, using innovative analysis techniques (Fuzzy Logic Approach)
  6. Development and integration of Occupational Health and Safety Management Systems (OHSAS 18001)
  7. Information, education and training of workers
  8. Machinery Directive
  9. Construction Site Directive


In the field of management systems (Quality, Environment, Health and Safety), ARIA offers the following services:

  • Initial Assessment of the Safety and Enviromental situation and fullfillments. In this phase the status quo is defined, to be used as a starting point for the development of management systems.
  • Development of the MS. In this phase, the documents that contitute the framework for the whole MS (manual, procedures, operational instructions) in close cooperation with the company.
  • Audit. Necessary for the MS implementation, the audit activities foreseen are: intermediate audit, to assess the implementation completeness, pre-audit for certification purposes, support during certification audit.
  • Education and training.
  • MSs integration. for the optimisation of company times and resources.

  ARIA performs environmental risk assessments, aimed at identifying suitable preventive actions and analysing and developing the appropriate emergency procedures to limit the environmental impact of accidents. These activities particularly address "major risk" companies.

ARIA offers specialist assistance in the following areas:
  • Integrated Pollution Prevention and Control (IPPC - Directive 96/61/EC);
  • EIA, environmental impact assessment;
  • Development and evaluation of GHG (Greenhouse Gas) accounting systems, to ensure that companies provide a complete and accurate report of their emissions, consistently with best practices adopted by the various industrial sectors participating in the European Emissions Trading program;
  • Land-use planning.


ARIA is a point of reference for analysis and decision making concerning energy projects, based on the use of the various technologies available on the world market.
Industrial, banking, insurance, trading and service sector groups, hospitals, public authorities and residential districts are among the organisations that turn to ARIA for assistance in this area.

Power consumption optimisation
Definition of the building's theoretical characteristics, analysis and examination of energy consumption records, evaluation of any differences compared to statistical averages, identification of any possible shortcomings during the year, such as lack of or poor maintenance.

Energy saving
Building assessment with suggestions for improvement work required: passive, on structures, or active, on equipment

  • definition of specifications for the materials to be used, type of construction, heat and sound insulation of fixtures
  • definition of specifications and choice of suppliers/installers of electrical systems, HVAC systems, telecommunications (Building Management System)

Certification/Assessment of buildings energy performances
Certification of buildings to energy efficiency classes as required by current legislation and assessments prior to certification of energy consumption per surface unit for residential buildings, housing units, industrial plants, shopping centres, hospitals, etc.

Choice of renewable energy sources

  • Assessment of the client's energy requirements over time (daily, weekly, monthly, annual consumption).
  • Choice of technology for using renewable energy sources (hydropower; tidal power, wave power and sea currents; wind energy; geothermal energy; photovoltaic systems; solar heat; biomass energy; biogas;
Feasibility studies
Analysis of the various steps of the procedure (professional services; suppliers; project; construction site; inspection; certification; maintenance schedules) to assess applicability, possible savings, any economic and/or financial, support, tax relief or other allowances



Insurance advice and assistance
  • Analysis of the best solutions combined with analysis of potential risks
  • Assistance in dealings with insurance companies in connection with:
    • Property damage risk assessment
    • Third party liability risk assessment
    • Business interruption risk assessment
    • Appraisals and estimates
    • Advice and assistance in connection with risk control, prevention and protection from an insurance perspective
Legal advice and assistance
  • Assessment of the legal and regulatory position combined with risk analysis from a preventive viewpoint
  • Assistance in dealings with public authorities
  • Advice on criminal law issues in connection with industrial and commercial business activities (opinions; examination of corporate documents; preparation of proxies and safety documents; examination and correspondence with public authorities)
  • Assistance in criminal proceedings for offences relating to the company's business and professional activities (occupational safety and hygiene; environmental protection; corporate and tax offences; administrative liability pursuant to Italian Legislative Decree No. 231)
Legal, insurance and technical surveys
  • Development of the appropriate documents to enable a correct assessment of the case in question
  • Management of serious incidents due to fire, breakdowns, natural and industrial disasters, theft, third party liability, interruption of business
  • Emergency management, aimed at limiting the damage caused and consequent financial loss to a minimum
  • Assistance with reporting accidents and claiming compensation under existing insurance policies
  • Advice for companies suffering property damage and/or loss of profit
  • Technical surveys.


  • ARIA Srl offers training in its areas of expertise in accordance with current laws and regulations as well as training courses tailored to meet the needs of individual organisations.