Personalization
Personalization explained
A chosen language, saved topic or relevant help for the product currently in use can make the next step easier. Start with a specific obstacle: what information is missing, which choice is difficult, what gets repeated unnecessarily? A general page may already handle that task well. Individual adaptation is worthwhile when it improves the actual experience.
Distinguish deliberate choices from inferred assumptions. Opening an article once does not establish every future interest. Allow people to change their selection and plan an understandable default for missing or incorrect assignments. Content must remain accurate outside its intended segment too; personalised product claims must not invent a different reality.
For personal data, the purpose, necessary scope and appropriate lawful basis matter. Device access and advertising contact have additional rules. In Germany these include section 25 TDDDG and section 7 UWG. Newsletter registration, a consultation request and a download are not universally the same permission. Assess the particular use and implement withdrawals, objections and preference changes across connected systems.
Creative Engineering develops clear versions and ensures they work in the intended context. We take responsibility for the concept and quality. Check additional usefulness against an appropriate default and include concept, content, data maintenance and operation. More active segments or more complete profiles are not success criteria in themselves. A simple adaptation can be more helpful than an elaborate model.
Examples
Hypothetical application
A professional-information provider lets newsletter subscribers select topics and change them later. Editors assemble suitable, checked articles. The team tests selection updates and unsubscribe behaviour, and assesses the content’s actual usefulness without automatically adding every new piece of information to the profile.
Key Points
- Start with a user task rather than maximum data collection.
- Distinguish chosen settings, rules and estimates.
- Evaluate quality, user control and effort together.
Practical application
Choose a specific obstacle and a clear adaptation. Check the default case, preference changes, missing data and actual additional value.
Useful measures
User task
Assess whether people can find the intended information or complete the intended action more effectively.
Reliable selection
Check correct versions, clear defaults and effective changes.
Benefit against effort
Compare the outcome with the default while including all relevant costs.
Common mistakes
- Pursuing the fullest possible profile as an end in itself.
- Treating every interaction as a lasting preference or advertising permission.
- Producing many versions without evaluating their usefulness.
Sources and context
- EUR-Lex: DSGVO / GDPR
EU legal basis, particularly purpose limitation, data minimisation, lawful bases, consent and marketing objections.
- Gesetze im Internet: § 25 TDDDG
German rules on storing and accessing information on devices, including exceptions.
- Gesetze im Internet: § 7 UWG
German rules on advertising contact, including electronic mail and the limited existing-customer exception.
Frequently Asked Questions about Personalization
No. A chosen language or a simple rule selecting appropriate content is already an adaptation. AI is one possible technical approach.
Not for every application. Establish which data and connections are really needed. An existing system or simple choice may already solve the task.
No. Data should be necessary and current for a specific permissible purpose. Additional fields establish neither better content nor greater usefulness.
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