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HomeMethodsParallel Design
ParticipatoryDesign & PrototypingQualitative ResearchIntermediate

Parallel Design

Explore diverse design solutions simultaneously by having multiple teams independently solve the same problem.

Parallel Design has multiple designers independently create solutions to the same problem, then combines the strongest ideas into one concept.

Share
Duration8 hours or more.
MaterialsPapers, pencils, etc.
PeopleAt least 2 design teams.
InvolvementNo User Involvement

Parallel Design is a collaborative design methodology where multiple designers or small teams independently create solutions to the same design problem within the same timeframe, then reconvene to compare, critique, and merge the strongest elements into a unified concept. By guaranteeing that genuinely different approaches are explored before convergence, parallel design counteracts the groupthink and tunnel vision that commonly occur when a single team iterates on one direction from the start. Product designers, UX teams, innovation labs, and design agencies use parallel design when the stakes are high enough to justify the additional resource investment. The method is particularly valuable for complex design challenges where the optimal solution is not obvious, where early commitment to the wrong direction would be costly, and where diverse perspectives are likely to produce meaningfully different approaches. While more resource-intensive than serial iteration, parallel design consistently produces higher-quality outcomes because the final unified solution draws from a broader pool of ideas and has been stress-tested through cross-team critique. The method also builds team engagement, as designers feel greater ownership when their ideas have a genuine chance of shaping the final product.

WHEN TO USE
  • When the design problem is complex enough that multiple valid solution approaches likely exist
  • When the team has been iterating on one concept without making meaningful progress
  • When the stakes are high and committing to the wrong design direction early would be costly
  • When you have multiple designers available and want to leverage diverse perspectives fully
  • When stakeholders need to see genuine alternatives before making a strategic design decision
  • When you want to reduce design risk by exploring the solution space broadly before converging
WHEN NOT TO USE
  • ×When the design problem is straightforward with an obvious solution approach that teams agree on
  • ×When resources are too limited to support multiple teams working on the same problem simultaneously
  • ×When the project timeline does not allow for the comparison and synthesis phases after parallel work
  • ×When the team is too small to form meaningfully independent groups with diverse perspectives
HOW TO RUN

Step-by-Step Process

01

1. Form Design Teams

Create small design groups, ideally composed of 3-4 individuals, which can include UX designers, developers, and stakeholders. Each team will work independently on designing solutions for the same problem.

02

2. Define Design Goals

Clearly outline the goals, objectives, and requirements of the project. Each team should have a solid understanding of the problem they need to solve, target users, and any constraints or restrictions that may apply to the design.

03

3. Set Design Timeline

Determine the appropriate amount of time for the design exercise. Give each team a deadline by which they need to present their design solutions. The timeline can be anywhere from a few hours to a couple of days, depending on the scale and complexity of the project.

04

4. Develop Design Solutions Independently

Each team works independently to design their own unique solution to the problem. Encourage divergent thinking and exploration of different ideas during this phase. Teams should focus on creating functional prototypes or wireframes which represent their design solutions.

05

5. Review and Compare Solutions

Bring all teams together to present their design solutions to the larger group. Encourage open discussion and critique of each solution, identifying strengths and weaknesses in each design. Look for trends and common elements among the different designs.

06

6. Select and Refine the Best Ideas

From the discussions, identify the best ideas, features, or components from each design. Work towards combining these elements into a single, cohesive design solution. It may be helpful to have a group discussion or voting process for selecting the best ideas.

07

7. Develop a Unified Design

Use the selected best ideas to create a unified design solution. Assign a smaller team or individual to integrate the different features and elements from the various solutions into a single, cohesive prototype or wireframe design.

08

8. Perform Usability Testing

Conduct usability tests on the unified design solution to evaluate its effectiveness in solving the original problem. Gather feedback from the target users and analyze the findings to identify areas of improvement.

09

9. Iterate and Improve

Based on usability testing feedback, iterate on the design, making necessary improvements and refinements. Continue iterating and testing until the design meets the project goals and objectives, and provides a satisfying user experience.

10

10. Implement and Launch

Once the final design is developed and tested, implement the solution and launch the product. Monitor user engagement and gather feedback post-launch to fine-tune the design as needed for ongoing improvements.

EXPECTED OUTCOME

What to Expect

After completing a parallel design process, the team will have explored the solution space far more broadly than serial iteration would allow, producing multiple genuinely different design concepts. The cross-team review will have identified the strongest elements from each approach, and the unified design will combine these into a solution that is more robust and well-considered than any single team's work. The team will have documented why specific approaches were selected or rejected, creating a valuable decision log. Usability testing of the unified design will validate that the merged elements work together effectively. Beyond the design artifact, the process builds team morale and investment, as every participant sees their contributions reflected in the final product.

PRO TIPS

Expert Advice

This method is resource-intensive - ensure the design stakes justify the investment of multiple teams.

Compose balanced teams with complementary skills rather than grouping all senior designers together.

Give all teams identical briefs and constraints to ensure fair comparison of approaches.

Keep teams isolated during the design phase to prevent premature convergence on one idea.

Establish clear criteria for evaluating designs before the reveal session begins.

Look for surprising combinations - the best final design often merges ideas from multiple teams.

Document why certain approaches were rejected, not just why others were chosen.

Combine parallel design with usability testing to validate the merged solution with real users.

COMMON MISTAKES

Pitfalls to Avoid

Allowing cross-pollination too early

When teams share work in progress before the formal review session, their designs converge prematurely. Keep teams strictly isolated during the design phase to ensure genuinely different approaches emerge from each group.

Unbalanced team composition

Putting all the experienced designers on one team creates an unfair comparison and demoralizes other groups. Distribute skills and experience levels evenly so that every team has a realistic chance of producing strong solutions.

No evaluation criteria defined

Without pre-established criteria, the review session devolves into subjective preference debates. Define clear evaluation dimensions such as usability, feasibility, innovation, and brand alignment before teams begin designing.

Cherry-picking rather than synthesizing

Simply picking one team's design as the winner wastes the method's potential. The real value comes from thoughtfully combining the strongest elements from multiple solutions into a unified design that is better than any individual submission.

Skipping usability validation

Assuming that the merged design is automatically better because it combines multiple approaches is risky. Always test the unified solution with real users to ensure that the combined elements work together coherently.

DELIVERABLES

What You'll Produce

Design Brief

Comprehensive document outlining goals, requirements, and constraints for teams.

Team Assignments

Clear designation of team members, roles, and responsibilities per group.

Individual Design Concepts

Independent design solutions developed separately by each team.

Design Reviews

Meeting notes from cross-team presentations, critiques, and discussions.

Combined Design Concept

Integrated solution incorporating the best elements from each team.

Usability Testing Plan

Structured approach for testing the combined design with real users.

Usability Test Results

Summary of user feedback, pain points, and suggested improvements.

Iterations and Redesign

Revised design based on testing results and team feedback.

Final Design Report

Comprehensive document detailing the final solution and design rationale.

FAQ

Frequently Asked Questions

METHOD DETAILS
Goal
Design & Prototyping
Sub-category
Co-design sessions
Tags
Parallel Designdesign explorationcollaborative designprototypingdesign teamsidea generationdivergent thinkingdesign competitioniterative designconcept development
Related Topics
Design ThinkingDesign SprintsCollaborative DesignIterative DesignUsability EngineeringDivergent Thinking
HISTORY

Parallel design as a formalized usability engineering method was championed by Jakob Nielsen in the 1990s as part of his discount usability engineering approach. Nielsen advocated for having multiple designers independently create interface solutions before comparing and combining their best elements, arguing that this approach consistently produced more usable designs than serial iteration by a single designer. The concept draws on broader principles from engineering and architecture where competitive proposals have long been standard practice for high-stakes projects. Academic research, including John McGrew's work on genetic algorithm-inspired design processes, provided theoretical support for the method's effectiveness. As UX practice matured in the 2000s and 2010s, parallel design became integrated into design sprint methodologies and collaborative workshop formats. Today it is recognized as a standard practice for reducing design risk and increasing solution quality on important projects.

SUITABLE FOR
  • Quickly generating diverse design ideas when a single approach feels limiting
  • Getting different perspectives from independently working team members
  • Discovering multiple approaches simultaneously to complex design problems
  • Breaking out of design ruts when iteration on one concept is not yielding progress
  • Reducing design risk by exploring multiple directions before committing resources
  • Building team engagement by giving everyone ownership of design exploration
  • Creating healthy competition that raises the quality of proposed solutions
  • Generating more options to present to stakeholders for strategic decisions
RESOURCES
  • Parallel DesignWith the parallel design technique, several people create an initial design from the same set of requirements. Each person works independently, and when finished, shares his/her concepts with the group.
  • Parallel Design and Testing by Jakob Nielsen and Jan Maurits FaberHow parallel design (a usability engineering method where multiple designers independently of each other design suggested user interfaces) can improve usability in the finished product.
  • Parallel & Iterative Design + Competitive Testing = High Usability3 methods for increasing UX quality by exploring and testing diverse design ideas work even better when you use them together.
  • The collaborative parallel design processI first learned about parallel design some years ago when I read "Shortening the Human-Computer Interface Design Cycle: A Parallel Design Process Based on the Genetic Algorithm," by John McGrew of…
  • Using a Collaborative Parallel Design Process :: UXmattersWeb magazine about user experience matters, providing insights and inspiration for the user experience community
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