Data action models and queries

5 important questions on Data action models and queries

What are the steps of the data action model?

- Formal description of a methodology
- By diagrams and meta information
- Using data handling classes (actions)
- To implement by geo-information tools (software)

Why data-action models?

- Describe and explicate a methodology which makes the model output more easily reproducible and understandable
- Run the model automatically over and over again
- Change of input data
- Edit the structure or the DA-model by adding and deleting data handling steps
- Store DA-model changes to update the DA-model and results dynamically

What is boolean query?

- Simple query
- Logical operators
- Operand
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What types of spatial data query are there?

- By graphic (circle, box, polygon)
- by spatial relationship (containment, intersect, adjacency)

What is a raster data query?

- Only by cell value
- Conditional function
- Con Tool, raster calculator
- use of boolean connectors/ operators is possible on multiple rasters

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