Terms of use
Guidelines for exploring this portfolio, reviewing its work, and using its tools. Updated 14 October 2026.
About this portfolio
This is Rajesh Siburian’s independent professional portfolio. It presents selected design work, methods, concepts, and professional resources for evaluation, discussion, and learning. Paid services and deliverables are subject to a separate written agreement.
Ownership and attribution
Original portfolio materials remain subject to their applicable intellectual-property rights. Client names, logos, product interfaces, and third-party assets remain the property of their respective rights holders. Their inclusion identifies relevant work or context and does not imply sponsorship or endorsement.
You may link to the portfolio and discuss the work with attribution. Downloadable materials are intended for their stated purpose, such as professional assessment. Obtain permission before republishing, selling, adapting, or redistributing protected material beyond what the applicable licence or law permits.
Case studies and reported outcomes
Case studies explain design decisions and the author’s contribution within a wider team. Project dates, role descriptions, source notes, and measurement context should be read alongside any reported outcome. Estimates and organisation-level results should not be interpreted as independently verified personal impact unless that attribution is supported.
Design examples concerning finance, healthcare, security, or regulation are presented as product-design work. They are not professional financial, medical, legal, or security advice.
Using the interactive tools
Use the site and Presenter Console lawfully and respect the rights of others. Keep backups of important scripts and media, and only upload material you are entitled to use. Do not use the site to distribute malicious content, interfere with its operation, or attempt unauthorised access.
Features, browser compatibility, and availability may change. A browser preview gate is intended to guide portfolio access and should not be treated as secure storage for confidential information.
Corrections, rights, and removal requests
If you believe material is inaccurate, confidential, improperly attributed, or infringes your rights, please contact me through the contact page. Include the page URL, the material concerned, the basis of your request, and a way to reply. Avoid sending unnecessary sensitive documents.
Good-faith requests will be reviewed, and content may be corrected, credited, restricted, or removed as appropriate. Contacting me does not waive any rights available under applicable law.
External links and responsibility
External websites and services have their own terms and privacy practices. Review those policies before using them. Reasonable care is taken with this portfolio, but accuracy, availability, and fitness for a particular purpose cannot be guaranteed.
Nothing in these terms excludes rights, remedies, duties, or liability that cannot lawfully be excluded. Any limitation applies only to the extent permitted by applicable law.
Changes and contact
These terms may be revised as the portfolio evolves. The date above identifies the latest revision. For permissions, professional enquiries, or questions, use the contact page.