1. Introduction
    1. System Requirements
    2. Setup and Installation
  2. Getting Started
    1. Creating a Database
    2. Email Configuration
    3. Web Module Setup
    4. Web Module Update
  3. Navigating RM Studio
    1. Main Menu
      1. Save Function
      2. Import External Data
        1. Import Assets
      3. Clear User Cache
      4. Security
      5. Properties
      6. Languages
      7. Registration
      8. User Manual
      9. Manage Checkouts
      10. About
      11. Application Style
    2. Navigation Tree
    3. Tabs
    4. The Grid
    5. Context & Flow
  4. Common Entities
    1. Business Entities
      1. Asset Details - Basic Information tab
      2. Asset Details - Risks tab
      3. Asset Details - Categories tab
      4. Asset Details - Business Entities tab
    2. Contacts
    3. Teams
    4. Assets
    5. Asset Categories
    6. Asset Attributes
    7. Threats
    8. Standards/Controls
      1. How to: Standards, Regulations, Controls
      2. Standards Implementation Comparison
    9. Documents
  5. Gap Analysis
    1. How to: Gap Analysis
    2. Reporting
  6. Risk Assessment
    1. How to: Risk Assessment
      1. Risk Assessment Overview
      2. Adding Assets
      3. Adding Risks
      4. Evaluation Values
      5. Evaluating Risks
      6. Various Definitions
      7. Risk Assessment Reporting
    2. Risk Owner Tasks
    3. Risk Profile
  7. Web Module
    1. Dashboard
    2. My Tasks
    3. Reports
    4. Standards/Regulations
    5. Documents
    6. Incidents
    7. Risk Owner Web Solution
  8. Control Assessment
    1. Control Assessment Templates
    2. Control Assessment
    3. Reports - Control Assessment
  9. Risk Treatment
    1. How to: Risk Treatment
      1. Risk Treatment Templates
      2. Risk Criteria
      3. Asset Level
      4. Controls Tab
      5. Scheduling a Future Control
      6. Future Controls Tab
      7. Overview
      8. Reload Assets, Threats and Controls
    2. Risk Treatment Reports
  10. STPA
    1. STPA Projects
    2. Models and Diagrams
      1. How to: Create CS Models
      2. How to: Create CS Diagram
        1. Diagram Elements
        2. Models Progress Check
    3. Analyses
      1. How to: Define Purpose of Analysis
      2. Losses
      3. Hazards
      4. Relationship
      5. Constraints
      6. How to: Identify UCAs
      7. How to: Identify Loss Scenarios
        1. Loss Scenario Progress Check
    4. Reporting
    5. Global Properties
  11. Business Continuity Management Module
    1. Organization
      1. New Organization
      2. Stakeholders
      3. Resources/Processes
        1. Impact Analysis
        2. Requirements
    2. Incident Response/Recovery
      1. Associated Threats
      2. Plans
        1. Steps
      3. Maintenance
        1. Test plans
        2. Test Results
    3. Templates
    4. Maintenance
    5. Reports BCM
  12. Database Settings
    1. Database Upgrade
    2. Add Existing
    3. Remove
    4. Migrate
    5. Backup
    6. Restore
  13. Glossary
  14. Calculations

10.3.Analyses

STPA Method Overview

The graphical representation of the STPA Method Overview is an excerpt from the STPA Handbook, released March 2018.

The Analyses section, as the name implies, is for the several different types of analysis needed in STPA. The STPA Project Overview tree presents the Analyses after the Models. When the project is created in the STPA module, then same name is automatically created for the Analysis. Defining the purpose of the analysis is often the first step of the method, but modeling the Control Structure can be started by the analyst while the losses and hazards are in the brainstorming phase.

The STPA handbook provides a this explanation for Defining the Purpose of the Analysis:

What kinds of losses will the analysis aim to prevent? Will STPA be applied only to traditional safety goals like preventing loss of human life or will it be applied more broadly to security, privacy, performance, and other system properties? What is the system to be analyzed and what is the system boundary? These and other fundamental questions are addressed during this step.

Defining the purpose of the analysis includes:

  • Identifying losses
  • Identifying hazards
  • Identifying constraints
  • Optionally refining hazards

« Models Progress CheckHow to: Define Purpose of Analysis »
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