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Knowledge management

An AI chatbot for higher education that answers only from your own sources

HiWi+ Chat answers questions from prospective and current students around the clock: on the study programme, application, admission, enrolment, re-registration and study organisation. Exclusively from the pages and documents of your institution, with a source reference for every answer.

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HiWi+ Chat
HiWi+ChatChatKnowledge baseDocumentsQuestionsContactsStudent advisorySource-based answers on study and examination regulationsWhat are the deadlines for re-registrationfor the summer semester?Re-registration runs from 15 Jan to 15 Feb via thestudent portal. Source: regulations §7 (2) — module handbookSource: study and examination regulationsHow do I register for anexamination?Ask a question…
Illustrative view. The chat appears in your institution's visual identity, embedded on your website or as a page of its own.
Use cases

The questions that come back every semester

By far the largest share of enquiries in offices and student advisory services are always the same ones. Those are exactly what the chat takes over, without anyone retyping a line of the answer.

Programmes and course offering

Content, prerequisites, standard period of study, specialisations and differences between related programmes, answered from your own pages and leaflets.

Application and admission

Deadlines, documents, admission restrictions, procedures for international applications. The most frequent question before the semester and the one that costs the most time.

Enrolment and re-registration

Which documents are still missing, by when re-registration is due, what happens if a deadline is missed. Answers around the clock, including the weekend before the cut-off.

Start of studies and organisation

Semester schedule, registering for courses and examinations, leave of absence, changing subject, recognition of credits from earlier studies.

Study and examination regulations

The chat reads the version of your regulations and module handbooks currently in force and names the passage each answer comes from.

Certificates and formalities

Semester fee, semester ticket, enrolment certificate, leave of absence, de-registration. Small questions in large numbers that run through the office all day.

Questions in English and other languages

International applicants ask in their own language and receive the answer in that language, based on the same German sources. Without your pages having to be translated for it.

Referral to the right place

Anything that is not documented or needs a personal decision leads to a checked referral to the responsible office or student advisory service, not to a guessed answer.

How it works

How an answer comes about

The difference from a general language model is not the model but what it is allowed to see. Four steps, each of them traceable.

1

Classify the question

The chat first checks whether the question falls within its remit. Anything outside is declined before a model even answers.

2

Find the matching passages

From your knowledge base the passages that match in substance are retrieved, not whole documents. What counts is the meaning of the question, not the keyword searched for.

3

Phrase the answer only from those

The language model may use only the passages found. World knowledge is switched off. If the sources do not support an answer, the chat says so and refers on.

4

Supply the source

Every answer names the sources used. Your editorial team additionally sees which passages in particular were drawn on.

Knowledge base

Your content, kept current

What is connected are your institution's web pages as well as PDF, Word and Excel files. Study and examination regulations, module handbooks, leaflets, deadline overviews and the question collections that have grown in the offices.

Knowledge spaces instead of one big pot. Every faculty and every area has its own sources and its own editorial team. That way nobody answers from another faculty's documents.
Replacing one source is enough. If a regulation changes, the new version is stored and the old one superseded. There is no second place where the same text would have to be maintained again.
Expiry dates for deadlines. Time-limited content such as application deadlines can be given an expiry date, so that next semester nobody is advised from an outdated overview.
No training on your data. Content is read at runtime and not fed into a model. With the providers we use, use for training purposes is excluded by contract.
HiWi+ Chat · Knowledge base
HiWi+ChatChatKnowledge baseDocumentsQuestionsContactsKnowledge base14 sources in 3 knowledge spacesElectrical EngineeringComputer ScienceGeneralStudy and examination regulations, B.Sc. Electrical EngineeringPDF · 64 pages · last checked on 12 AugustCurrent versionApplication deadlines, winter semesterWebsite · updated automaticallyValid until 15 SepModule handbook, B.Sc. Electrical EngineeringPDF · 128 pages · last checked on 5 AugustCurrent versionRe-registration leaflet, 2025 versionsuperseded by the 2026 versionArchivedAdd source
Source management: every source assigned to a knowledge space, with check date, expiry and superseded versions in the archive.
Integration

On your website, in half an hour

Widget

Two lines in the page template are enough. The widget is encapsulated, adopts your colours and your greeting text and loads nothing from third-party servers.

TYPO3 and other systems

In TYPO3 via Fluid, TypoScript or a content element of your own, with a data protection gate to your specification. Equally in WordPress, Drupal or a custom-built site.

A chat page of its own

Its own address under your domain, linkable from a newsletter, a notice or a QR code. Useful for prospective students who are not yet on your website.

API

For your own interfaces the programming interface is available, with the same session and abuse logic as the widget. That lets you build the service into a student portal as well.

Your institution's page
Student advisoryAnswers with a source referenceWhat is the deadline to apply forthe winter semester?Applications are open until15 July via the application portal.Source: application deadlines WT 2026/27Which documents do I needfor that?Ask a question…
This is what prospective students see. The widget opens over your own page, in your institution's visual identity, and names the source for every answer.
Data protection and operation

Four routes, depending on how strict your requirements are

By default neither a sign-in nor personal data is needed to use it. Optionally a sign-in via your single sign-on can be placed in front, without a second data store arising in the platform.

Route 1

Operated in Germany

We operate the platform in a German data centre. No effort for your IT, ready to go immediately. The usual route for getting started and for a pilot.

Route 2

German operation, European models

The same operation, but you determine which model providers are permitted at all. Anyone who does not want requests to US providers restricts the choice to European models.

Route 3

Your own data centre

The same platform as a container in your own environment, operated by your IT. Billed as an annual licence rather than monthly operation.

Route 4

Fully local AI server

With HiWi+ Local AI the language model also runs on your own hardware. Air-gap capable, without any request leaving the network.

A data processing agreement, a description of the technical and organisational measures and a text block for your record of processing activities are part of the setup and not an extra item.

Editorial and quality

You keep control over every answer

Test catalogue before every release

A catalogue of real questions runs automatically against the current state before it goes live. The result is a log you can present.

Question list from live operation

The editorial team sees what is actually being asked and where answers are missing. That produces a task list for your website, not only for the chat.

Hard boundaries instead of hope

Limits of remit, the offices that may be named and the handling of cited paragraphs are stored as rules and not left to the model.

Knowledge spaces per area

Every faculty maintains its own sources and its own editorial team, on a shared platform with jointly maintained general content.

HiWi+ Chat · Questions
HiWi+ChatChatKnowledge baseDocumentsQuestionsContactsQuestions in the last 30 daysQuestions asked2.184Answered from sources91%Forwarded9%Outside office hours62%Most frequent questionsRe-registration deadlines318Applying without a German degree224Registering for an examination186Recognition of prior credits134Gap detectedNo source is available on the recognition of foreign credits. 41 questions were forwarded.
The analysis shows what is actually being asked and where a source is missing. That becomes a task list for your website, not only for the chat.
Limits

What the chat deliberately does not do

A tool that promises everything is measured by its first wrong answer. That is why we say in advance where the boundary lies.

No person-related information. The chat knows no marks, no applications and no processing status of individual people.
No legal interpretation. The chat reproduces what the regulations say. Interpretation in an individual case remains with the examination board.
No answer without a source. What is documented nowhere cannot be answered by the chat. It says so and names the responsible office.
In use at

Karlsruhe University of Applied Sciences

HiWi+ Chat is in use at the Faculty of Business Administration of Karlsruhe University of Applied Sciences and was developed there together with the departments. Seven programmes, their regulations and module handbooks as the knowledge base, tested against a catalogue of real questions from student advisory services.

“Our main goal was to reduce administrative processes and workload within the faculty while at the same time offering students a better service, for example with the faculty chatbot they can ask questions about their studies around the clock. The HiWi+ modules were developed for our specific needs at the faculty, but they are certainly just as usable for many other educational institutions.”
Prof. Dr.-Ing. Hendrik Rust
Prof. Dr.-Ing. Hendrik Rust Vice Dean for Teaching Faculty of Business Administration, Karlsruhe University of Applied Sciences
Questions and answers

Frequently asked questions

Because it may answer only from your approved sources and world knowledge is switched off. Every answer names its source, and your editorial team sees the passages used. If the sources do not support an answer, the chat refers to the responsible office instead of guessing.

Your institution's web pages, PDF documents such as study and examination regulations or leaflets, as well as Word and Excel files. Content is separated thematically into knowledge spaces, so that one faculty does not answer from another's documents.

As a widget via two lines in the page template, encapsulated and without loading anything from third-party servers. In TYPO3 it can be integrated via Fluid, TypoScript or a content element of your own, taking around half an hour. Alternatively as a chat page of its own or, via the programming interface, inside a student portal.

Yes. By default neither a sign-in nor personal data is needed to use it. Operation runs either in a German data centre, in your own data centre or entirely locally on your own hardware. No training takes place on your data. A data processing agreement, the technical and organisational measures and a text block for your record of processing activities are part of the setup.

Your editorial team, through an administration interface that needs no technical background. Sources can be replaced, added to and given expiry dates. For the first semester we reckon with around two hours per week, considerably less after that.

A pilot at faculty level is usually productive within six to ten weeks, including capturing the sources, the test catalogue, data protection documentation and training the editorial team. A free demonstration phase with your own documents comes before that.

Billing consists of a one-off setup and monthly operation per stage of expansion. There are no per-user licences, usage is unlimited. A pilot at faculty level starts in the mid four-figure range and is credited in full against a later expansion. For operation in your own data centre there is an annual licence.

See the chat working on your own documents

Before any engagement there is a free demonstration phase. You provide your own regulations and leaflets and check on real questions how robust the answers are. Without commitment and at no cost.

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