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Editing tasks
You will need an XML editor software. There are plenty of them, including free ones, which you can download from the Internet. COTS XML editors examples are XML Spy, XMetal, Epic, Morphon, etc. Finally, EUROCONTROL expects the industry to provide AIS-domain specific software supporting the eAIP specification.
Publishing tasks
The objectives of these tasks is to let your users access the eAIP in the format they are most interested in: HTML for on-screen browsing, PDF for printing or XML itself for further processing. Again, plenty of tools are available. For transformation of XML into HTML or PDF, all you need is an XSLT processor and an XSL-FO renderer. Most such software are developed in Java, so you will probably need a Java Runtime Envir-onment as well.
XSLT processor: An XSLT processor is a software that transforms XML files into other formats, using XSLT instructions. For more information about XSLT, see the references section. Two common XSLT processors are Xalan, an Open Source Software written in Java by the Apache Software Foundation and MSXML from Microsoft. Note that MSXML only runs on Windows platforms, while Xalan runs on any Java 2 platform (Windows, Unix, Mac and others). There are many other processors available.
XSL-FO renderer: An XSL-FO renderer is a software that transforms XSL-FO files into other formats, such as PDF (Portable Document Format, made popular by Adobe Acrobat) and PostScript. For more information about XSL-FO, see the references sec-tion. Two common XSL-FO renderers are FOP, an Open Source Software written in Java by the Apache Software Foundation and XEP from RenderX. Both run on any Java 2 platform (Windows, Unix, Mac and others). FOP is free but not complete. XEP is complete but not free. A free evaluation version of XEP is available at their Web site. There are some other renderers available.
Usage tasks 
On-screen display: a Web browser is the typical software to use for on-screen display of an eAIP. Some of these browsers are able to display the XML format directly, but this is not the recommended method, due to the size of an AIP document. It is recom-mended to use the HTML version (which will be provided by AIS offices on their Web site or on CD-ROM). 
On paper: users would typically print an eAIP from the PDF files, as provided by the AIS offices. To do that, they would need a PDF document reader, such as Adobe Acrobat Reader. 
Computer processing:  when further processing of AIP data is needed, such as to ex-tract specific parts of the AIP or to format it differently for on-board devices, developers would use the eAIP in XML format directly. In this case, tools such as an XSLT pro-cessor and probably a Java Runtime Environment (JRE) or Java Development Kit (JDK) will be needed. 
Q: A:  See also the following questions: How do I create an eAIP? How can I use an eAIP? Is the eAIP supported by the industry? What technologies is the eAIP using? The EUROCONTROL eAIP is based on XML (eXtensible Mark-up Language). An electronic AIP is in fact an XML document, conforming to eAIP DTD. The eAIP in XML is transformed into other formats using XSLT. For on-screen display, the eAIP is transformed into HTML (Hyper-Text Mark-up Language). When paper is the target, the eAIP is transformed into XSL-FO. Charts and graphics can be in various formats, and a very interesting one for aeronautical charts is SVG. All these technologies are official recommendations (standards) by the W3C (World Wide Web Consortium). Finally, software tools must be used to print XSL-FO; currently, the most convenient method is to first convert XSL-FO to PDF or PostScript and then print those files. 
See also the answers to the questions What is XML? What is a DTD and what has it to do with eAIP? What is XSLT? What is XSL-FO? What is SVG? 
Q: A:  What is XML? XML stands for eXtensible Mark-up Language. XML is a subset of the Standard Generalized Markup Language (SGML, ISO 8879). Since 1998, when it was published as a recommendation by the World Wide Web Consortium (W3C), XML has rapidly become the de-facto industry standard for electronic data interchange. 
　
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