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This is a translation of the German privacy policy without any legal binding force.

1. Privacy policy

We treat your personal data confidentially and in accordance with the statutory data protection regulations of the EU General Data Protection Regulation (DS-GVO) and the Federal Data Protection Act (BDSG) as well as this data protection declaration.

Sielhorst iT Beratung UG (haftungsbeschränkt) (hereinafter referred to as Sielhorst iT Beratung) has always taken the protection of your personal data very seriously. We process personal data in compliance with the applicable data protection regulations. Your data will neither be published by us nor passed on to third parties without authorisation.

1.1 Responsibility

Who is responsible for processing data and whom can I contact?

Responsible within the meaning of the General Data Protection Regulation (GDPR) is:

Sielhorst iT Beratung
UG (haftungsbeschränkt)
Sachsenstr. 13
64297 Darmstadt
Phone: +49 (6151) 506 148

To exercise your rights or if you have any other questions, please write to us at the above address or send us an e-mail.

1.2 To whom does this privacy policy apply?

This privacy policy applies to all visitors to our websites, interested parties as well as customers, partners as well as students.

1.3 Processing of personal data

1.3.1 Use of the websites

In the following, we explain which data we collect during your visit to our websites ( or, or or www.semantic-data-store-en, ... ) and how exactly they are used.

As a matter of principle, we do not use fully automated decision-making including profiling in accordance with Article 22 DS-GVO.

When you visit our websites ( , ...), we log every access in the server's file system. The following data is recorded:

  • IP address used

  • Time at the time of access

  • Visited website

  • Message whether the retrieval was successful

  • Amount of data sent in bytes

  • Source/reference from which you reached the page

  • Browser used

  • Operating system used

The temporary storage of the IP address by the system is necessary to enable delivery of the website to the user's computer. For this purpose, the user's IP address must remain stored for the duration of the session. These purposes are also our legitimate interest in data processing according to Art. 6 para. 1 lit. f DS-GVO.

Server log data and the IP address are retained and subsequently deleted, for example to protect the security of the website against attacks. The legal basis for the temporary storage of the data is Art. 6 para. 1 lit. f DS-GVO.

The collection of data for the provision of the website and the storage of the data in log files is absolutely necessary for the operation of the website. Consequently, there is no possibility for the user to object. We delete the data from the file system after 2 months and the backup copies of the data after a further 4 months.

The analysis of website visits is carried out on internal systems with the help of Matomo ( formerly Piwik). The data is only processed anonymously and therefore not passed on to third parties.

Personal data is not collected or processed beyond the cases mentioned above, unless you expressly consent to further processing.

Our website may contain links to other websites.

We would like to point out that this data protection declaration applies exclusively to our website. We have no influence on and do not control that other providers comply with the applicable data protection regulations.

1.3.2 Communications to and from Sielhorst iT Consulting / POWER Students

Below we explain what data we process when you send us or we send you communications. Communications to or from us may include:

  • Emails to or from /

  • Messages by telephone or fax

  • written communications

We store and archive your written communications in accordance with legal requirements so that we can process your request.

Only authorised persons have access to the data.

We store these communications for at least 10 years in order to comply with our obligations under the law.

  • §§ Sections 238, 239, 257 of the German Commercial Code (HGB),

  • §§ Sections 140 to 148 of the German Fiscal Code (AO),

  • 14 Value Added Tax Act (UStG) and

  • the principles for the orderly keeping and storage of books, records and

documents in electronic form and on data access (GoBD).

1.4 Use of BCS

Below we explain what data we process when you use our Business Coordination System (BCS) to work together on projects.

1.4.1 User account

For your user account, we store the following information in addition to your e-mail address

  • Your surname, first name, gender, title

    for a correct form of address

  • Address details

    for project-related cover letters

  • Contact details

    for cooperation and accessibility in projects

A history of all changes to the user account is also saved.

1.4.2 Project affiliation

We assign you to projects and assign roles and rights for joint collaboration - primarily so that you can create tickets that we process professionally.

1.4.3 Project participation

We give you access to parts of projects you are involved in - primarily so that you can access all tickets in that area.

1.4.4 Changes to a project

We store all changes to tickets on projects including the original message, especially comments, attachments and status changes of tickets.

1.4.5 Visibility

Every person involved in a project sees the tickets of this project and thus all the data contained in them, in particular names of people involved in this project and their changes to these tickets to the project.

1.4.6 E-Mail

We will send notifications regarding changes to your e-mail address

  • your user account and

  • of a ticket,

    - that you reported,

    - for which you are responsible,

    - whose distribution list you are on

  • of a project,

    - where you are actively working

    - where you are responsible

    - in which you are assigned

You can configure the scope of the messages regarding tickets and projects in your user profile at any time. The contents of the messages are not saved.

For projects with sensitive data, the contents of the messages about changes can be kept minimal.

1.4.7 Storage and backup

BCS data is stored and backed up in the file system of our servers.

2 Your rights

2.1 Information

You have the right to request confirmation from us as to whether personal data concerning you is being processed; if this is the case, you have the right to information about this personal data.

2.2 Correction

You have the right to request that we correct any inaccurate personal data relating to you without delay.

2.3 Deletion

You have the right to request that we delete personal data relating to you without delay.

2.4 Restriction of processing

You have the right to request that we restrict the processing of personal data relating to you.

2.5 contradiction against processing

You have the right to contradict at any time to the processing of personal data concerning you, insofar as they are processed

  • for the performance of a task in the public interest or in the exercise of official authority vested in us, or

  • to protect our legitimate interests or those of a third party.

You have the right to object at any time to the processing of personal data concerning you for the purpose of direct marketing.

You have the right to object to the creation of a user profile for the purposes of advertising, market research or the needs-based design of telemedia.

2.6 Data portability

You have the right to receive the personal data concerning you that you have provided to us in a structured, commonly used and machine-readable format, and you have the right to transfer this data to another controller without hindrance from us, provided that the processing is based on consent or on a contract and the processing is carried out with the aid of automated processes.

2.7 Withdrawal of consent

You have the right to withdraw consent to the processing of personal data relating to you at any time.

2.8 Complaint

You have the right to lodge a complaint with a supervisory authority, in particular in the Member State of your habitual residence, place of work or place of the alleged infringement, if you consider that the processing of personal data concerning you infringes the General Data Protection Regulation.

3 Miscellaneous

This privacy policy is valid as of 25 May 2018 and the domains for our service websites (,, are also operated under this privacy policy.

The use of additional domains for web / email was supplemented analogously from 1.8.2021 (