SHERPA and FMEA identify critical failure modes in home care, prioritizing risk reduction.

Why It Matters

Understanding potential points of failure in user environments is crucial for designing safer and more effective systems. By employing structured analytical techniques, designers can anticipate risks and implement preventative measures, leading to improved user experience and reduced negative outcomes.

Key Finding

SHERPA and FMEA are effective tools for identifying and prioritizing potential failures in home care settings, with SHERPA uncovering more issues and FMEA pinpointing causes.

Key Findings

• SHERPA yielded the most failure modes, effects, and recommendations.
• FMEA was the only technique to identify causes of failure modes.
• Both FMEA and SHERPA allowed for the ranking of potential failure modes based on severity and probability.

Research Evidence

Aim: To determine if common failure modes, causes, effects, and recommendations can be identified across different analytical techniques when applied to home care scenarios.

Method: Comparative analysis of analytical techniques

Procedure: Two pilot home visits were conducted to gather data. Various analytical techniques, including Use Case Diagrams, Process Flow Diagrams, Hierarchical Task Analysis, Failure Mode and Effects Analysis (FMEA), Systematic Human Error Reduction and Prediction Approach (SHERPA), Hazard Analysis and Critical Control Point (HACCP), Heuristics, the Safe Living Guide, and the Resident Assessment Instrument – Home Care (RAI-HC), were applied to this data. The time taken for each technique and the commonality of their outputs were measured and reviewed.

Context: Home care environment

Design Principle

Employ systematic failure mode and effects analysis to anticipate and mitigate risks in user-centric designs.

How to Apply

When designing products or services for home environments, use FMEA to map out potential failures, their causes, and their effects, and then use SHERPA to generate a comprehensive list of potential issues and recommendations for mitigation.

Limitations

The study was based on a small number of pilot visits, and the time taken to apply each technique may vary with user expertise.

Student Guide (IB Design Technology)

Simple Explanation: When designing things for people to use at home, it's important to think about what could go wrong. This study found that two methods, called SHERPA and FMEA, are really good at finding these potential problems and helping designers fix them before they cause trouble.

Why This Matters: Understanding how to identify and analyze potential failures in a design is a critical skill for any design project. It helps ensure that your final product is safe, reliable, and user-friendly.

Critical Thinking: How might the effectiveness of FMEA and SHERPA be influenced by the specific domain or user group being considered?

IA-Ready Paragraph: In order to proactively identify and mitigate potential risks within the design, a systematic approach to failure mode and effects analysis was employed. Techniques such as SHERPA and FMEA, as highlighted by Griffin (2010), are effective in uncovering potential failure modes, their causes, and their consequences, allowing for prioritized design interventions.

Project Tips

• When analyzing your design, consider using FMEA to identify potential failure modes and their causes.
• Use SHERPA to brainstorm a wide range of potential issues and solutions for your design.

How to Use in IA

• Reference this study when discussing your chosen risk assessment methods and justifying their use in identifying potential design flaws.

Examiner Tips

• Demonstrate an understanding of how to systematically identify and analyze potential failure modes in your design process.

Independent Variable: Analytical techniques (SHERPA, FMEA, etc.)

Dependent Variable: Number of failure modes identified, causes identified, recommendations generated, time taken

Controlled Variables: Home care environment, pilot visit data

Strengths

• Compares multiple established analytical techniques.
• Provides quantitative data on time taken and qualitative data on output commonality.

Critical Questions

• What are the trade-offs between the comprehensiveness of SHERPA and the causal analysis of FMEA?
• How can the insights from these techniques be effectively integrated into iterative design workflows?

Extended Essay Application

• Investigate the application of FMEA and SHERPA to a complex system or service within a specific design project, comparing their outputs and effectiveness.

Source

Applying Human Factors and the Resident Assessment Instrument - Home Care: An Examination of Failure Modes, Causes, Effects and Recommendations in the Home Care Environment · TSpace · 2010