Developer Friendly How to Comply Quick Guide

1. If you modify the TaxisDB engine

You must:

• Release distributed modifications under SSPLv1
• Keep copyright and license notices
• Keep trademark notices intact
• Comply with all SSPLv1 obligations

TL;DR: If you distribute a modified TaxisDB engine, your modifications must comply with SSPLv1.

2. If you build an application using TaxisDB

You may:

• Build desktop applications
• Build web applications
• Build mobile applications
• Build enterprise software
• Build internal tools
• Keep your application closed-source, provided you are not offering TaxisDB itself as a hosted database service

TL;DR: Applications built on TaxisDB may remain proprietary unless SSPLv1 service obligations are triggered.

3. If you provide TaxisDB as a hosted or cloud service

You must:

• Comply with SSPLv1
• Release the complete source code of the service required by SSPLv1
• Keep license and copyright notices
• Follow the Trademark Policy

This includes the software required to provide the hosted TaxisDB service.

TL;DR: Offering TaxisDB as a service requires compliance with SSPLv1 service-source obligations.

4. If you modify TaxisBase

You may:

• Extend the ontology
• Add new entity types
• Add attributes
• Add relationships
• Add constraints
• Add entities
• Add facts (datoms)

If you publicly distribute an adapted TaxisBase database, you must comply with the ODbL Share-Alike requirements.

TL;DR: Private modifications are allowed. Publicly distributed adapted databases must remain under ODbL.

5. If you redistribute TaxisBase contents

You must:

• Comply with ODbL
• Comply with DBCL
• Preserve required attribution
• Preserve licensing notices

TL;DR: The database model and contents remain open under ODbL + DBCL.

6. If you want to keep a hosted service proprietary

You need a Commercial License.

Typical examples include:

• Proprietary cloud database services
• Closed-source managed hosting
• Enterprise hosted platforms
• OEM deployments
• Embedded commercial products

TL;DR: Proprietary hosted TaxisDB services require a Commercial License.

7. If you want to use the project names or logos

You must follow the Trademark Policy.

In particular:

• Do not imply official endorsement.
• Do not use official branding for forks.
• Do not use TaxisDB or TaxisBase as product or company names without permission.

TL;DR: Open-source licenses do not grant trademark rights.

8. If you want to contribute

Please:

• Follow the project’s contribution guidelines
• Follow the Code of Conduct
• Sign the Contributor License Agreement (CLA), if required

TL;DR: Follow the contribution process before submitting changes.

9. If you’re unsure

Please contact the Project owner.
Email: Athanassios

TL;DR: When in doubt, ask first.

📌 Ultra-Short Summary

TaxisDB (SSPLv1)

• Internal use is allowed.
• Applications using TaxisDB may remain closed-source.
• Modified distributed engines must comply with SSPLv1.
• Hosted TaxisDB services must comply with SSPLv1 service obligations.

TaxisBase (ODbL + DBCL)

• Use, modify, and extend freely.
• Publicly distributed adapted databases must comply with ODbL Share-Alike.
• Individual database contents are licensed under DBCL.

Commercial License

Required if you want to offer a proprietary hosted TaxisDB service without complying with SSPLv1 service obligations.

Trademarks

The licenses do not grant rights to use:

• TaxisDB
• TaxisBase
• Official logos
• Project branding

See the Trademark Policy for details.