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How can you test for web mapping interoperability?

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Web mapping interoperability is the ability of different web mapping platforms, services, and clients to exchange and use spatial data and functionality without compatibility issues. Interoperability is essential for web mapping applications that need to integrate data from multiple sources, such as open data portals, web services, or user-generated content. However, testing for web mapping interoperability can be challenging, as there are many factors that can affect it, such as data formats, coordinate systems, standards, protocols, and software versions. In this article, you will learn how to test for web mapping interoperability using some common tools and methods.

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Sourabh Soni

Innovating in 3D / CAD / Computational Geometry / GIS / Digital Twin Technology for a Smarter World | LinkedIn Top…

1 Check data formats

One of the first steps to test for web mapping interoperability is to check the data formats of your spatial data. Data formats are the ways that spatial data are stored and encoded, such as shapefiles, GeoJSON, KML, or GML. Different web mapping platforms and services may support different data formats, or have different requirements for how the data should be structured and validated. Therefore, you need to make sure that your data formats are compatible with the web mapping platforms and services that you want to use. You can use tools like QGIS, GDAL, or ogr2ogr to inspect, convert, or validate your data formats.

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Sourabh Soni

Innovating in 3D / CAD / Computational Geometry / GIS / Digital Twin Technology for a Smarter World | LinkedIn Top Voice Computer Graphics
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Data formats come with their own unique nuances. For instance, a KML/KMZ file allows the storage of raster images. However, when this file is converted to GeoJSON, the raster image might not be retained. This is because the GeoJSON format does not include specifications for such data.

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2 Check coordinate systems

Another step to test for web mapping interoperability is to check the coordinate systems of your spatial data. Coordinate systems are the ways that spatial data are referenced and projected on the map, such as WGS 84, EPSG 3857, or UTM. Different web mapping platforms and services may use different coordinate systems, or have different expectations for how the data should be transformed and displayed. Therefore, you need to make sure that your coordinate systems are consistent and accurate across your web mapping platforms and services. You can use tools like QGIS, GDAL, or proj to inspect, transform, or reproject your coordinate systems.

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Sourabh Soni

Innovating in 3D / CAD / Computational Geometry / GIS / Digital Twin Technology for a Smarter World | LinkedIn Top Voice Computer Graphics
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Today, we utilize thousands of spatial reference systems, including those established by the EPSG, ISO, and OGC standards. A Coordinate Reference System (CRS) is a framework that outlines how to pinpoint and exhibit geographic data on maps and other spatial depictions. It explains the relationship between a 2D projected map in a Geographic Information System (GIS) and actual locations on Earth. The choice of map projection and CRS is influenced by the geographical scope of the area you wish to study, the type of analysis you plan to conduct, and frequently, the availability of data. When translating data, it’s crucial to take into account both the incoming and outgoing CRS.

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3 Check standards and protocols

Another step to test for web mapping interoperability is to check the standards and protocols that your web mapping platforms and services use. Standards and protocols are the rules and specifications that define how spatial data and functionality are exchanged and accessed over the web, such as OGC WMS, WFS, WMTS, or GeoJSON. Different web mapping platforms and services may implement different standards and protocols, or have different levels of compliance and support for them. Therefore, you need to make sure that your standards and protocols are compatible and reliable across your web mapping platforms and services. You can use tools like OGC Validator, GeoServer, or OWSLib to test, publish, or consume your standards and protocols.

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4 Check software versions

Another step to test for web mapping interoperability is to check the software versions of your web mapping platforms and services. Software versions are the specific releases or updates of the web mapping platforms and services that you use, such as Leaflet 1.7.1, OpenLayers 6.5.0, or ArcGIS Online 10.9. Different web mapping platforms and services may have different software versions, or have different dependencies and requirements for them. Therefore, you need to make sure that your software versions are up to date and compatible across your web mapping platforms and services. You can use tools like npm, pip, or conda to manage, install, or update your software versions.

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5 Check performance and usability

The final step to test for web mapping interoperability is to check the performance and usability of your web mapping applications. Performance and usability are the measures of how fast, smooth, and user-friendly your web mapping applications are, such as loading time, responsiveness, interactivity, or accessibility. Different web mapping platforms and services may have different impacts on the performance and usability of your web mapping applications, depending on factors such as data size, complexity, bandwidth, or browser compatibility. Therefore, you need to make sure that your web mapping applications are optimized and tested for performance and usability across your web mapping platforms and services. You can use tools like Chrome DevTools, Lighthouse, or WebPageTest to measure, analyze, or improve your performance and usability.

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6 Here’s what else to consider

This is a space to share examples, stories, or insights that don’t fit into any of the previous sections. What else would you like to add?

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Juliet Ibenegbu

Co-President African Women in GIS || GIS Specialist || ESRI YPN Ambassador || Speaker || Brand Ambassador GetKidsIntoSurvey || Researcher
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Testing for web mapping interoperability involves ensuring standards compliance, data and functionality testing across browsers and platforms, performance and security evaluation, integration with other systems, and usability assessment.

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How can you test for web mapping interoperability?

1

2

3

4

5

6

1 Check data formats

2 Check coordinate systems

3 Check standards and protocols

4 Check software versions

5 Check performance and usability

6 Here’s what else to consider

Geographic Information Systems (GIS)

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How can you test for web mapping interoperability?

1

2

3

4

5

6

1 Check data formats

2 Check coordinate systems

3 Check standards and protocols

4 Check software versions

5 Check performance and usability

6 Here’s what else to consider

Geographic Information Systems (GIS)

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