2026-06-02 07:00:31lisa:
SD C04 Hot Cross Bun activity: anchor Step 1 to two real CHOICE-reviewed buns
Replace the abstract 'two or three brands' framing in Step 1 with a real
comparison: Woolworths Bakery Chocolate (CHOICE Expert 95) vs Coles Finest
Luxurious Fruit (Expert 85), using CHOICE's March 2025 review data.
Pedagogy: CHOICE's 95-vs-85 ranking is presented as one valid result from
*one* matrix. A 'traditional Easter breakfast' persona pulls Coles into
direct contention, demonstrating that 'different persona, different shape
of decision — same data'. New 'Notes' column on the worked-example matrix
shows where to use CHOICE data as input vs sanity check. Scoring sheet
updated to the two named brands instead of A/B/C.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
sd/C04/Activity - Hot Cross Bun Matrix.md ..
@@ 16,7 16,7 @@
## The challenge
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We have **two or three brands** of hot cross buns. Working as a review panel, you will:
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We're comparing two real CHOICE-reviewed buns — **Woolworths Bakery Chocolate** vs **Coles Finest Luxurious Fruit**. Working as a review panel, you will:
1. Design an evaluation matrix.
2. Use it to crown a winner.
@@ 26,28 26,41 @@
---
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## Step 1 — Make the design decisions *before you taste*
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## Step 1 — Pick a persona, then design the matrix *before you taste*
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We're not starting from scratch. CHOICE ran an actual review in March 2025 — a blind taste test of 19 supermarket and bakery buns. Two of their top picks are on the bench:
*Source: [CHOICE Hot Cross Buns review and compare](https://www.choice.com.au/food-and-drink/bread-cereal-and-grains/bread/review-and-compare/hot-cross-buns), last updated 20 March 2025.*
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Before you taste anything, notice what's already obvious: **these aren't the same product**. One is chocolate, one is traditional fruit. One is **$0.73 per bun**, the other **$1.38** — nearly double. CHOICE's Expert Rating crowns Woolies Chocolate (95) over Coles Fruit (85). But that ranking came out of *CHOICE's* matrix for *CHOICE's* view of "best hot cross bun" — and your persona is not CHOICE.
Criteria come **first**, never invented afterwards to crown the bun you happened to like. Working from the [seven design decisions](/sd/C04/Designing%20an%20Evaluation%20Matrix), agree on:
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- **Who you're recommending for** — the persona drives everything. "Best bun" is meaningless; "best bun *for a family's Easter breakfast*" tells you what to measure.
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- **Your criteria** — the handful that decide it for that person.
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- **How each is measured** — a blind panel rating, or something objective like price-per-bun or counting fruit pieces.
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- **Who you're recommending for** — the persona drives everything. *"Best bun for a family's traditional Easter breakfast"* and *"best bun for the kids' lunchbox snack"* will not pick the same winner.
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- **Your criteria** — the handful that decide it for that person. Watch out: some criteria (like *"traditional fruit & spice flavour"*) really only apply to one of these two buns. Decide upfront whether you score that as 0–1 for the chocolate bun, or exclude it because your persona doesn't demand it.
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- **How each is measured** — blind panel rating for the eating qualities. The CHOICE data above is legitimate input for *value*, *price*, and a *sanity check* on toasted/fresh.
- **Weights, justified** — where your point of view lives.
- **A scale** (use 0–5).
- **What you deliberately exclude, and why** — *flag these now; they come back in Step 4.*
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A worked design for the persona *"a family buying for Easter breakfast"*:
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A worked design for the persona *"a family buying for traditional Easter breakfast"*:
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| Criterion | Weight | How you'll measure it | Notes |
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|---|---|---|---|
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| Taste (toasted, served warm) | 30% | Blind panel rating, 0–5 | Compare to CHOICE *toasted* score afterwards |
| Value | 15% | Price per bun → converted to a 0–5 score |
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| Appearance | 10% | Rating |
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*Deliberately excluded:* packaging — it doesn't change how the bun eats, so it can't help one bun beat the other on this matrix. (Hold on to this — Step 4 picks it back up.)
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*Deliberately excluded:* packaging — it doesn't change how the bun eats, so it can't help one brand beat another on the matrix. (Hold on to this — Step 4 picks it back up.)
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Look at what the persona just did. Weighting *traditional flavour* at 25% pulls Coles Fruit into direct contention with the higher-overall-rated Woolies Chocolate. The final winner now depends on the panel's actual taste scores — exactly as it should. **Different persona, different shape of decision — same data.**
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@@ 94,12 107,12 @@
## Your scoring sheet
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| Criterion (weight) | Method | Brand A | Brand B | Brand C |
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|---|---|---|---|---|
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| | | | | |
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| | | | | |
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| | | | | |
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| **Weighted total / 5** | | | | |
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| Criterion (weight) | Method | Woolworths Bakery Chocolate | Coles Finest Luxurious Fruit |
