Designing with the Solar Internet: Towards Constraint-Based Design for Sustainable Consumption

Research Background and Issues

• Issues and Challenges:

  • The paper discusses environmental problems caused by overconsumption in the computing and fashion industries, including high energy consumption and carbon emissions.
  • The fashion industry accounted for 10% of global CO2 emissions in 2018, and it is projected to increase to 2.1 billion metric tons by 2030, nearly double the maximum allowed under the Paris Agreement.
  • In online fashion retail, abundant content and enhanced user experiences inadvertently increase the combined resource consumption of the computing and fashion industries.

• Importance of the Issue:

  • The rapid growth of online services and data-intensive media usage exacerbates carbon emissions.
  • Standard design practices promote overconsumption and counteract environmental sustainability goals.

• Research Motivation and Related Work:

  • The authors propose using constraint models to counteract the "abundance" design paradigm prevalent in contemporary human-computer interaction.
  • Sustainable design concepts, such as reducing interaction resource consumption and redesigning digital services (e.g., solar-powered internet), are gaining more attention.

Solution

• Proposed Solution:

  • This paper adopts a constraint-based human-computer interaction design approach by creating a solar-powered online fashion retail website (named "Mino") to explore ways to reduce computational consumption and promote slow fashion behaviors.

• Innovative Aspects:

  • Instead of designing a user-friendly, seamless retail experience, this approach seeks to provoke a rethinking of consumption behaviors by imposing constraints.
  • Several core strategies are proposed, such as "visibility strategies" (revealing hidden drawbacks), "non-distributed design" (reducing user reliance on automation), and "designing interaction dead ends" (preventing users from seamlessly continuing consumption).

• Implementation Steps and Techniques:

  1. Following standard web design processes (e.g., website prototyping and user testing).
  2. Optimizing visual and technical presentation through vector graphics and reduced code (e.g., JavaScript).
  3. Designing specific user experience constraints, such as:
     • No shopping cart; users must manually record the names of items they wish to purchase.
     • Providing conceptual outline drawings of products instead of high-resolution photos to reduce data transmission.
     • Displaying carbon data as uncertain information (with question mark prompts) to reflect the uncertainty of environmental information.

Research Outcomes

• Specific Outcomes:

  • Through "research-driven design," five design strategies were proposed:
    • Optimization: Reducing resource usage through techniques like file compression.
    • Making constraints visible: Highlighting the uncertainty of energy consumption and environmental costs.
    • Cognitive de-distribution: Removing automated features like shopping carts, requiring users to actively participate in consumption decisions.
    • Preserving data incompleteness: Using incomplete or missing data to make users aware of "hidden costs."
    • Designing interaction dead ends: Closing interaction paths to prevent unlimited browsing of products.

• Advantages Over Existing Solutions:

  • This design reflects reflective strategies concerning user and environmental impacts, rather than increasing user convenience and consumption.
  • It challenges dark pattern designs (e.g., inducive consumption designs on e-commerce websites) and advocates for minimalistic and transparent design.

• Experimental and Evaluation Results:

  • User testing revealed the limitations of constraint-based design:
    • Users felt frustrated by the lack of automation but were more tolerant of these constraints when framed within an environmental narrative.
    • Some users appreciated the minimalist design style, but most still expected richer information access.
  • Data showed that displaying carbon emission information (whether clear or ambiguous) had minimal impact on purchasing decisions, with most users prioritizing price and convenience.
  • The design prompted participants to reflect on their consumption habits while conveying the significance behind the constraints.

• Limitations and Future Directions:

  • There is an irreconcilable tension between the two extremes of the constraint axis (user experience constraints and consumption constraints).
  • Even if significant energy savings are achieved through design, as long as products are sold, the consumption footprint will exceed the marginal benefits of computational savings.
  • Future research should:
    • Further explore how to effectively design "acceptable" constraints.
    • Investigate methods for deep user education and design transparency.
    • Introduce more extreme or incentive-based strategies to change consumption behaviors, such as stricter restrictive designs or political constraint tools.

Through this study, the authors demonstrate that designers need to reflect not only on functionality and user experience but also courageously challenge the mainstream paradigm of overconsumption. The findings show that while constraint-based design may cause inconvenience, it can inspire users to rethink sustainable consumption.