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XML Certification

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The XML Certification requires skills in XML, XML DOM and XSLT.

The XML Developer Certificate

XML is used in many aspects of web development, often to simplify data storage and data sharing. XML is the most common tool for data-transmissions between all sorts of applications.

The XML DOM (XML Document Object Model) defines a standard way for accessing and manipulating XML documents.

XSLT is the style sheet language of XML.

The XML Developer Certificate proves fundamental knowledge of web development using XML, XML DOM and XSLT.

XML Developer Certificate example


Before you apply for your exam, you must have a fundamental knowledge of:

  • XML
  • XSLT

Recommended Studies And Training

All questions in the exam are based on the content of W3Schools' XML, XML DOM and XSLT tutorials. We strongly recommend the following tutorials and quizzes:

Tutorials Quizzes
XML Tutorial XML Quiz
XML DOM Tutorial  
XSLT Tutorial  

The XML Exam

The XML exam will be taken over the Internet, at any time and from any location, but the exam should be supervised by a person selected by the exam candidate.

The exam consists of  70 multiple choice or true/false questions. The exam is time-limited to 70 minutes.

Candidates must have 75% correct answers to pass the exam and become certified.

Candidates who have more than 95% correct answers will get an Excellency Degree notation added to their certificate.

Excellency Degree example

Immediately after completing the exam, you will be informed of your score and of your pass/fail status. If you achieve certification status, W3Schools will ship you an XML Developer Certificate. The document will contain your personal data acknowledging your status as a Certified XML Developer.

If you have any questions regarding the exam, do not hesitate to send an email to:

Mail to

Your Supervisor

To add full credibility to your Certificate, you should have a supervisor to watch over you when taking the exam.

You must pick your own supervisor.

The supervisor should be used to see that you do not cheat. There are no other special criteria for the supervisor.

The supervisor's name and title will be printed on the certificate, so it could be wise to pick a supervisor who will add credibility to your certificate (e.g. your boss or teacher).

When you receive the hardcopy of the Certificate, you should ask for a signature from your supervisor.

Registration And Payment

To register for an XML exam, you must register with your email address.

When you register, an account will be activated within two working days, and you will receive an email with instructions about how to log in to your account.

You can log in to your account at any time, but you must take your exam within two months after you registered.

The price for the exam is $59 (U.S.) - payable with PayPal or a valid credit card at the time you register.

Your Email Address:

PayPal  Visa  MasterCard  Discover  Amex 

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