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Tandem l&ll

Lars H. BackerStatistics Sweden and the Tandem consortium

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The Task

• From the Commission’s – Quest to improve the comparability of statistics across the EU

• To the Tandem Consortium’s– Design for a system of small area statistics– Based on a system of small statistical areas– To liberate statistics from administrative areas

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3 Questions

• Why: A question of meeting ”User needs”• What: A question of Products and Services• How: A question of a Method for Development

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WHY

• How to describe ”User Needs”– Deductive method– Inductive method

• Based on the inductive method– A Case Study– A Network of Processes– A Critical Path

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Sustainable Spatial Development

• Sustainability– The current Paradigm for the Development of the EU?

• To integrate:– Natural Information– Artificial Information – Socio-Cultural and Economic Information

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A Network of Processes

Process A1

Process A2

Process C (Customer to C)

Process B (Supplier to C)

Process D

DOWNSTREAM

UPSTREAM

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A Critical Problem

• Proper descriptions depend on functional and structural:– Outer delineations– Inner differentiations

• Of urban areas– Residential – Work– Civic life– Recreation– Access

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WHAT

• A practical solution– The sandwich method

• To integrate– Descriptive information– Analytic information

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Data Capture & Spatial Analysis

• A Production Process involving– Data– Features– Method

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Features: Points and Areas

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Area-based Analysis

• Clustering (on irregular tessellations)• AZM (Automatic zoning method)

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Area-based delineation

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Point-based Analysis

• Isarithms (on regular tessellations)• Fixed Krieging

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Point-based outer Delineations

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Point-based inner Differentiations

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HOW

• Step1: A well founded proposal for discussion– Tandem l– Tandem ll

• Step 2: A prototype for benchmarking

• Step 3: A product for implementation

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The Proof of the Apple is in the Eating

• Utility• Theoretically argued• Empirically founded• Logically consistent• Open to public discourse (Repeatability)• Accumulative

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End

Visions without action are daydreams, Actions without visions are nightmares