Figure C.4: ASOR High-Level Process  Figure C.4 provides an overview of the steps required to compile an ASOR.  The tasks required for preparing an ASOR are described in  Section 5.3.1 through Section 5.3.6.  Identify the relationships between CNS/ATM solution failures, procedural errors, and their  effects on air traffic services and the hazard. Include identification of common cause failures  and errors occurring among elements of the solution.  Identify risk mitigation strategies that are shared by multiple elements of the CNS/ATM solution,  including mitigation of effects from common cause failures and errors occurring across solution  elements. CNS/ATM solution mitigation includes architectural and procedural aspects of the  solution, as well as environmental mitigation and related candidate safety requirements  identified in the OHA.  Reaffirm that the safety requirements developed from the shared risk mitigation strategies  satisfy the safety objectives. The safety requirements identified must be complete, concise,  clear, and necessary at the product level.  Allocate the safety objectives and safety requirements, including safety requirements from  environmental mitigation, to elements of the CNS/ATM solution. ( Note : These requirements  should be included in the pPRD.) The allocations may require updating based on feedback  from other processes (e.g., safety requirements from other OSAs or Memoranda of  Understanding between the ATO and Aviation Safety). Allocations may also require updating  based on an organization’s rejection of responsibilities initially assigned by the OSA. Understanding the interactions of air traffic procedures and airspace characteristics assist in the  identification of failures, errors, and combinations of both that contribute significantly to the  hazards identified in the OHA.  C_SRMGSA_202003  Originally published March 2020  Uncontrolled copy when downloaded  C-13 5.3.4  Allocate Safety Objectives and Requirements  5.3.3  Develop and Reaffirm Safety Requirements  5.3.2  Identify Shared Risk Mitigation Strategies  5.3.1  Identify Solution Failure Relationships  Step 1 Identify  stakeholders Step 2 Identify  operational air  traffic or other  services  Step 3 Conduct  analysis to  identify  operational  hazards Step 4 Develop the  PHL Step 5 Identify effects  of operational  hazards for  each  application and  assess their  severity Step 6 Identify safety  objectives/ requirements  based on  established  severity effects Step 7 Classify  operational  hazards Step 8 Trace  operational  hazards and  effects Step 9 Identify  controls and  safety  requirements Step 10 Develop OHA