Terms of Use

Last updated: 28 September 2026

By using jmassena.com you accept these terms.

Using the content

You are welcome to read, link to and share pages from this site. You may quote short passages with attribution and a link. Copying substantial parts of the content, or using it commercially, needs my written permission.

Case studies and figures

The case studies describe my own role and the results of work I led. Figures are rounded and simplified, and they are not official figures of the companies involved. Nothing on this site discloses confidential information of my employers.

No professional advice

Articles, frameworks and teaching resources are shared as general information. They are not professional advice for your specific situation.

External links

Links to other websites are provided for convenience. Their content and terms are the responsibility of their owners.

Availability and changes

I may update, change or remove content at any time, and I don’t guarantee that the site will always be available. If these terms change, the date at the top changes with them.

Applicable law

These terms are governed by Spanish law. Any dispute will be handled by the courts of Madrid, unless consumer protection law provides otherwise.