Clarify need and impact
Focus: Agree on the problem, hypothesis, and investment limits.
Output: A bounded brief, initial hypothesis, and measurement plan.
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Human responsibilities
Product Owner · Delivery Team · Feature Partner · Measurement Partner · Loop Guide
Evidence & decision
Budget: at most five team working days and €50 in AI costs; checkpoint at half the budget.
Work and rituals on this day
Problem, spec & measurement plan
Day 1: agree on the problem, budget, hypothesis and measurement plan. Day 2: confirm rules, plan implementation and test cases. Example limits for the first cart: at most 5 team working days and €50 in AI costs; team effort is not calendar duration. The Spec Clinic postpones the additional wishlist.
Participants: PO, Delivery Team, Feature Partner and Measurement Partner; Scout and Planner support.
Support & small tasks
Ongoing work across all four weeks, not continuous full-time utilisation. Review requests, rank them by impact and urgency, and pull them within the agreed work limit. A small ticket includes actual/expected behaviour, an owner and evidence.
Participants: Delivery Team; PO or Feature Partner when a decision is needed.
Open related guidance ↗Gather experience
Record rework, feedback and waiting times from the start. The day 8 bug fix provides a specific finding: state transitions were insufficiently covered. The team examines the pattern in the retrospective on day 10.
Participants: Team and Loop Guide; Learning Guide consolidates approved observations.
Flow Check
Every working day at 09:00, up to 10 minutes: correct the current picture, clarify completion and blockers, confirm the next action and owner. Operational work and displaced tasks are visible.
Participants: Delivery Team; PO and Loop Guide as needed.
Open related guidance ↗Refinement
Mondays at 10:00 for 45 minutes. Prepare the next small piece of work, check scope and budget. On day 1 this concerns the cart, then the next work; ongoing features are not replanned every week.
Participants: PO, team and relevant Feature and Measurement Partners.
Open related guidance ↗The concrete shopping cart scenario
B1–B2 + V1Which problem is being solved?
Customers should easily correct their selection and understand the total before checkout. The first small change includes adding items, changing quantities, removing items, and transparent shipping costs.
Impact hypothesis
If customers can change quantities directly and see the total, more users with a filled cart will reach checkout.
Next evidence
A short user test checks whether quantities, removal, and shipping costs are understood without explanation.
Clarify open questions deliberately
- What happens at quantity 0?
- How should insufficient stock be handled?
- When does shipping become free?
- Who determines the valid price?
A small start
Illustrative task: the department leader sets direction through the ‘Simplify shopping’ initiative. The Product Owner defines the cart contribution and decides within delegated authority. The B1 example budget is at most five team working days plus €50 in AI costs, with a review at half the budget spent. Discount codes, guest-account synchronization, and payment are outside this change. If the budget is insufficient, the Product Owner and team use the Spec Clinic to shape the scope further. Price accuracy, stock limits, and required tests remain mandatory.
Specs, prompts & artifacts
Feature scorecard
Template for hypothesis, measurement plan, results, uncertainty, and decisions.
Scout
Need & spec · B2/B3
Possible mapping to Jira / Confluence
Link the pitch or brief to the small Jira issue. Reference CART 1.0 as the authoritative versioned source; record open rules and decisions.
Explore the tooling approach ↗