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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