Week 2 · learning day 2
Design thinking and portfolio design
Product Development Process · 45–60 minutes
Today’s outcomes
- Explain design thinking and portfolio design in the context of product development process.
- Compare a product decision using the source outcome rather than intuition alone.
- Produce a reusable section of a discovery brief.
Source trace
W02-O02Discuss the role of design thinking in building an effective product portfolio.W02-O07Estimate the market potential of a product and the importance of concept testing during the new product development process.
Core lesson
Make the choice inspectable
Design thinking and portfolio design matters when it changes a real allocation of attention, money, time, or delivery capacity. Move from observed need to tested value through explicit learning steps.
Start by naming the decision and the uncertainty around it. Separate evidence from assumptions, compare at least one alternative, and state what would make you revise the choice.
The source outcome for today is: Discuss the role of design thinking in building an effective product portfolio. Estimate the market potential of a product and the importance of concept testing during the new product development process.
What decision will design thinking and portfolio design improve, what evidence is sufficient for that decision, and what is the cost of being wrong?
Worked example
Design thinking and portfolio design in practice
For a medication-adherence app for working adults, the product manager must compare a choice about design thinking and portfolio design. The team records the target user and outcome, the evidence currently available, the strongest alternative, and the next reversible test. The recommendation is written as a choice with a reason—not as a list of features.
Do the work · 20 minutes
Turn the idea into a decision
- Choose a product you know and write the specific decision that design thinking and portfolio design should support.
- List two pieces of evidence, two assumptions, and one credible alternative.
- Make a recommendation in three sentences and add one condition that would change it.
Save to your portfolio
A discovery brief — section: Design thinking and portfolio design
Knowledge check
Answer before opening
What is the decision at the centre of design thinking and portfolio design?
A good answer names an accountable choice, not merely an activity or output.
How should evidence and assumptions be separated?
Label observed facts, interpretations, and untested beliefs explicitly so the next learning step is visible.
What makes the recommendation revisable?
It includes a trigger, threshold, or new evidence that would justify changing course.
What should the portfolio artefact communicate?
The context, considered alternatives, chosen direction, rationale, evidence, and remaining risk.
Spaced review
Reconnect the learning
Reflection