WATER INSIGHTS — THREE WAYS TO WORK WITH LOCAL DATA
13 October 2026 | Browser, portable and SharePoint evaluation editions

CHOOSE AN OPTION

1. Browser workspace — open local-workspace.html from Water Insights.
   Advantages: no installation or extraction; current website version.
   Trade-offs: trusts externally delivered code and our future releases;
   internet needed to open it; no shared or automatically saved session.
   Requirements: current desktop browser, allowed file selection, and your
   organisation's permission to use the records with this hosted software.

2. Portable — download and extract water-insights-portable-kit.zip.
   Open water-insights-portable.html in a desktop browser.
   Advantages: retain and review a fixed version; local analysis and GIS
   work without fetching the public website or a map background.
   Trade-offs: manual updates; device controls protect the downloaded app
   and exports; local files do not inherit SharePoint access permissions.
   Requirements: ZIP extraction and local HTML permitted on your device.

3. SharePoint — give water-insights-sharepoint-kit.zip to your administrator.
   Advantages: an internally reviewed version and SharePoint page access;
   administrator controls deployment and updates.
   Trade-offs: setup and tenant acceptance testing; manual file selection;
   no automatic library synchronisation or shared analysis session.
   Requirements: commercial SharePoint Online, App Catalogue administration
   and permission to deploy the included SPFx solution. Follow INSTALL.md.

All three use the same analysis engine and start empty. No operational or
synthetic demonstration records are included. These are focused internal-data
workbenches, not a bundled copy of the whole public dashboard/Atlas/Studio.

YOUR FIRST SESSION

Open the chosen edition and read its explanation before selecting records.
Use a permitted, scoped export. Select the data type and worksheet, map your
columns, review the preview and resolve validation issues. Compare accepted
totals and units with your source file. Review the evidence behind findings.
Import a replacement table when the source changes. Export only deliberately.

File limits: 8 MB; tables 10,000 records and 60 columns; GeoJSON 2,000 features
and 50,000 vertices. Use values-only .xlsx: formulas, macros, encrypted files
and external workbook links are rejected. GIS must use EPSG:4326 longitude/
latitude. Exact asset IDs link features and records; no connectivity inferred.

HOW DATA IS HANDLED

Selecting a file is not an upload. The app reads it in the browser and keeps
accepted records and calculations in that workspace's memory. It has no
record-upload endpoint, remote AI analysis, automatic browser database or
background connection to your corporate systems. Source files are unchanged.

The hosted edition uses an isolated sandboxed frame without a data bridge to
the surrounding page. Its content security policy allows bundled scripts,
blocks injected analytics scripts, and limits web resources to the optional
map service. These controls reduce exposure in the current implementation;
the website operator can still change the code delivered in a future release.

Clear session, reload or close discards the working session. Files explicitly
exported remain on your computer. Clearing does not delete those files or
securely erase device memory. Browser/device security remains your team's role.

WHAT STILL CONNECTS

Opening the website or downloading software reaches our hosting and Cloudflare.
Those services can process request metadata such as IP, requested path and
browser/network details. Other public pages may run analytics. Blocking
workspace analytics does not make the initial website visit anonymous.

Optional OpenFreeMap is off initially. If enabled, the provider sees your IP
and requested map tiles, revealing the viewed area. Imported rows and feature
attributes are not included in those requests. Local GIS works with it off.

Optional voice is off initially and speaks only fixed tutorial text. The
preferred voice is Google UK English Female (en-GB), if available. Its provider
may receive that text; imported data, filenames and results are not narrated.

IT REVIEW AND LIMITS

Local processing does not automatically satisfy an organisation's rules.
Review the delivered version, sandbox, security policy and permitted external
services. Verify network traffic while importing authorised records. Reconcile
results against the source. Test clear/export, browser and tenant policies.
Extensions, device controls and exported files remain outside the app's control.

The app's deterministic findings suggest investigations; they do not establish
failure causation, predict failure, identify affected customers or prove savings.
No denominator is invented when an export does not establish coverage.

Hosted browser launch, controls and optional basemap were checked in Chrome.
Its automated file picker was unavailable, so end-to-end hosted file imports
still need manual acceptance. Portable file opening and SharePoint tenant
installation also require acceptance testing. Browser network capture during
imports is unverified. Build and calculation checks are not tenant approval.
The SharePoint kit includes its dependency audit and source for IT review.
The two downloadable 1.0.0 kits remain unchanged by the browser-edition release.

Water Insights is independent tooling, not an official Greater Western Water
service. Current options and validation notes:
https://water-insights.setheusrealities.org/downloads.html