This is where you can find compiled versions of the MESA tool for Windows 11. The current version number is 5.0 beta 2025.12.26. MESA supports geoprocessing for delivering a sensitivity analysis according to the MESA method. This is a replacement of all former versions of MESA. 

The distribution comes with processed data so that visualisation and reporting tools can be used outright.

Unzip and run the mesa.exe program. No install needed. Test data for MAfia island in Tanzania is included.

MESA 5 - beta 2025.12.26
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Date: 2025-12-26

WARNING: This is an early beta version of the MESA tool (version 5). It is released solely for testing and feedback purposes.

The software is NOT ready for production use. Please read the following information carefully before using the tool.

DOCUMENTATION
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Documentation for this version is incomplete or missing. Users may encounter difficulty understanding specific workflows, options, or expected outputs.

USER INTERFACE
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Several parts of the user interface are unfinished or may be confusing:
- Some buttons or controls may not be clearly labeled.
- Navigation may not always behave as expected.
- Dialogs and menus may not respond or may take time to load.

Please be patient and report usability issues.

CALCULATION & FUNCTIONAL ERRORS
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This version may contain bugs in the underlying logic or calculations:
- Output may be inaccurate or incomplete.
- Some features may crash unexpectedly or produce no result.
- Logging and error messages may be limited.

We strongly advise against using any results from this version in decision-making, reporting, or operational analysis.

INTENDED USE
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This release is for:
- Testing purposes only.
- Identifying bugs, inconsistencies, and performance issues.
- Collecting feedback from early testers.
- Getting ready for the final version.

It is not intended for professional use in production environments.

HOW TO HELP
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We greatly appreciate your time and feedback!

Please report any bugs, suggestions, or issues via:

GitHub: github.com  

Best greetings,  
Ragnvald Larsen  
Lead Developer, MESA Tool  

MESA 5.0 (beta) is a usability and reliability-focused update of the Windows desktop workflow. The main theme is a clearer end-to-end pipeline (Workflows → Status → deliverables), fewer “modes”, and safer day-to-day operations for teams.

This page summarises the user-visible changes that landed during 2025 development. Remember this is a work in progress and that the developed code is based on back office methods development.

The desktop launcher now organises tasks into four phases on the Workflows tab:

• Prepare data (step 1) – bring inputs into the project (area assets, geocodes, line assets, atlas tiles)
• Configure processing (step 2) – adjust processing parameters and project metadata (processing parameters, analysis design, edit assets, edit atlas)
• Run processing (step 3) – run the heavy computation (process area, process line, process area analysis, optional raster tiles)
• Review & publish (step 4) – open viewers and export deliverables (asset map, analysis map, compare study areas, report engine)

This replaces older layouts where important tools were split across Settings or duplicated across multiple entry points.

The report engine now focuses on exporting a Word report (.docx) under output/reports/.

• PDF export from the report engine has been removed.
• Reporting is aligned around a single geocode basis (basic_mosaic) to reduce configuration complexity.
• Line reporting has been strengthened (overview + per-line detail pages) with improved map layout so figures stay on one page.
• Inset maps use consistent styling (border/shadow), and the styling knobs are configurable via config.ini.

If you need printable map layouts, the recommended route is still the QGIS project under qgis/.

A dedicated Backup / restore tool is available from the Settings tab.

• Creates a ZIP backup of input/, output/, and config.ini.
• Lists existing backups and restores from a selected ZIP.
• Restore is explicitly destructive (current data are replaced), with a clear warning and progress indication.

The Status tab is designed for lightweight monitoring (counters, timestamps, links) and avoids heavy IO during startup. It refreshes when selected so opening the app stays fast.