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Bernt 8e79e4b006 docs: Dashboard Principle + Landvex Dashboard audit prep

- DASHBOARD_PRINCIPLE.md (v1.0, LOCKED):

  - Four questions: What, Where, How serious, What now

  - Information hierarchy: Score -> Observations -> Map -> History -> Details

  - Decision Density: Dashboard = 1-3 decisions max

  - Not BI: helps user make decision, not consume statistics

  - Verification checklist

- EXPERIENCE_AUDIT_QA.md updated:

  - Screen 4: Landvex Dashboard (Phase: Manage)

  - Dashboard-specific questions: 3-second understanding, today's decision,

    80% ignorable, primary CTA

  - Dashboard Principle check: What/Where/How serious/What now

  - Decision Density target: 1-3 decisions

  - One-Sentence Test: understand area performance and what to act on

- Ready for Landvex Dashboard screen (stresstest for Foundation v1.0)

2026-07-02 11:45:07 +00:00

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DASHBOARD PRINCIPLE

Decision-Centered Dashboard Design for Landvex


Version	1.0
Status	LOCKED
Scope	All Landvex dashboards

The Four Questions

Every dashboard must answer:

#	Question	Example
1	What is happening?	"Area score dropped to 87"
2	Where is it happening?	"In Nacka municipality"
3	How serious is it?	"Below threshold of 90"
4	What do I do now?	"Inspect area" / "Order report"

If any question is missing, the dashboard is not complete.

Information Hierarchy

LEVEL 1: Score
         (the single most important number)

LEVEL 2: Three most important observations
         (what changed, why it matters)

LEVEL 3: Map
         (where things are happening)

LEVEL 4: History
         (trends over time)

LEVEL 5: Details
         (drill-down for deeper analysis)

Not the reverse.

Decision Density

Screen	Target Decisions	Notes
Onboarding	1	"Should I join?"
Marketplace	1	"Should I register?"
Dashboard	1–3	"What do I act on?"
Report	1	"Should I invest/repair?"

If a dashboard tries to support ten decisions, it needs to be split or restructured.

Not BI

Landvex is not BI.

Not: Tables, charts, widgets, KPIs. But: Reality → Understanding → Decision.

The dashboard helps the user make a decision, not consume statistics.

Verification

For every dashboard:

Can I understand the situation in 3 seconds?
What is today's most important decision?
Can I ignore 80% of the information?
Is there a primary CTA?
Does it answer: What, Where, How serious, What now?

ändringshistoria

Version	Datum	Beskrivning
1.0	2026-07-02	Initial dashboard principle for Landvex

STATUS

LOCKED

Mindre revideringar: 1.x-serien
Brytande ändringar: Kräver Architecture Review, ny major-version (2.0+)

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