1 / 23

EIONET Development Tools and Philosophy

EIONET Development Tools and Philosophy. ITTAG Meeting Athens 20 th September , 2000 Søren Roug. Creating a new announcement XML: alternative formats XML example: NATLAN2 Zope demonstration. Agenda. What is Open Source? EIONET ’ s Software Tools PHP Why Linux What is Zope

tamber
Download Presentation

EIONET Development Tools and Philosophy

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. EIONET Development Tools and Philosophy • ITTAG Meeting Athens • 20thSeptember, 2000 • Søren Roug

  2. Creating a new announcement XML: alternative formats XML example: NATLAN2 Zope demonstration Agenda • What is Open Source? • EIONET’s Software Tools • PHP • Why Linux • What is Zope • Zope Products • What is Zope’s Role? • Zope in EIONET Context

  3. Open Source: Why Use It? • Code reuse • Software created for one DEM could be used for another if we have the source • Competition • To make it possible for other companies to make extensions to CIRCLE (or provide 3rd level support) • Protection of investment • In the event that the software vendor goes out of business or loses interest in the product

  4. EIONET's Open Source Initiative • EIONET wants to use Open Source products as much as possible • ED, TietoEnator and others write software products for us • Hence, from now on; the new products, we ask them to develop, are Open Source • We have chosen Mozilla Public License • What does that mean?

  5. MPL: Contracting Company’s Rights • You may sell (for profit) EIONET-owned software to others or EIONET (e.g. bundled with service) • But you must tell the customer, that the source is available for free (Sec 3.6) • You may combine it with proprietary software as a larger works • But if you modify the EIONET-owned software you must make it available for free in source form

  6. Some Business As Usual • We will still ask a company to do QA testing and product support • Will we have different incompatible versions of CIRCA? • No, CIRCA is not (yet) Open Source and if it was, the Mozilla License will prevent it. That’s why we chose MPL • *Much* more emphasis on design documentation

  7. EIONETS Software Tools • Philosophy: Open Source • Webserver: Apache • Content Management: Zope • Rapid development: PHP • Operating Systems: Linux, Commercial UNIX • Groupware system: CIRCA • Data formats: XML • Database system: MySQL

  8. PHP • PHP is a language to make HTML-documents more interactive • You program directly in the HTML document • EEA use it for the THEMES database and WASTEBASE • PHP is also Open Source software

  9. Why Linux • Linux is as stable as commercial UNIXes • Our biggest Solaris Server is 2 x 480 MHz CPUs • Our next Linux will be Intel-based 1.100 MHz • Much cheaper • You can install a development system on an old PC

  10. LINUX in a Wrist Watch • 8 MB RAM • 8 MB Flash RAM • X-windows • Weigth: 44 Grams

  11. LINUX on Handhelds Left: Compaq iPaq /206 MHz Right: YOPY /206 MHz

  12. Linux Elsewhere • IBM Mainframes • www.google.com has 5000 Linux PCs in a cluster • SUN Sparc processors • Compaq Alpha processors • Turnkey systems • Fileservers/Intranet servers • Firewalls

  13. Why Use Zope? • We want livelier content on the webservers • We want access to small databases • We want a framework, where we can build small applications • Support for XML • Audience: What else do we want?

  14. What Is ZOPE? "Zope is the leading Open Source application server, specializing in interactive content such as portals and content management systems" • Everything is through-the-web • Built-in programming language • Integrated object database • XML, WebDAV, XML-RPC, SQL, LDAP

  15. What Can We Do With Zope? • Zope comes in building blocks called "products" • A building block provides a feature such as a guest book or announcements or workflow • There are more than 200 products right now • It's just install and play

  16. Zope Products SiteSummary - retrieve announcements from another webserver in RSS format Yihaw - Tree structure directory like in Yahoo! But extended with FAQs, announcements MeetingManagement - Lets you collect registrations for small meetings Zwiki - A permanent whiteboard for a webserver SquishDot - a bulletin board ... and hundreds more

  17. Zope’s Role • Zope • Rapid content creation! • Integrator of services • Can be used with little experience • Can be extended with special modules - the products • PHP • Rapid application development • Good for prototyping • Needs programming experience

  18. Zope’s Role • Java Servlets • Very flexible and low-level • Needs professional programmers • Impossible to customise for webmaster • CIRCLE • Specialised for group work • Difficult to customize • Impossible to extend

  19. LDAP Directory MYSQL CIRCA Other Zope Zope Zope in EIONET Context HTTP XML-RPC

  20. Creating a New Announcement Title Expires Article The result is a record, which we can then display as HTML or XML

  21. XML: Alternative Formats • Now as we have structured many types of data we can reuse them in many formats • RSS for inclusion on other webservers • WML for display on WAP-phones • It is an ongoing process, and it requires a further abandonment of HTML for storage XML HTML Convert Formatting WML PDF SGML

  22. XML Example: NATLAN 2 Database Database Coordinates in XML NATLAN Engine Web browser Augmented map

  23. Zope Demonstration • Now We switch to a live demonstration of Zope

More Related