The DTI Web Site

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The data relative to teaching are entered and updated by the Students secretary. Please refer this office for questions about courses and teaching.

Site Description

This web site has been based on the web site of the Dipartimento di Scienze dell'Informazione of the Università degli Studi di Milano.

The information presented by the DTI web site is dynamically extracted from a relational database. The database relational structure is derived from a conceptual model of the underlying domain, which, in this case, consists of the scientific and teaching activities related to the DTI, as well as of general information on DTI people. This web site allows browsing in English or Italian and switching from one language to the other at any page. Browsing is organized along two user modes:

  • Public mode. This mode gives access to information useful for researchers interested in the DTI scientific activity, and to information useful for students enrolled in our courses, as well as for students who are considering the possibility of enrolling in one of our programs. Public mode also provides general information on DTI (e.g., location, people, etc.).
  • Internal mode (intranet). This mode is intended for DTI people only and, in addition to what can be seen in public mode, it gives access to internal services. More specifically, it provides additional information on people working at DTI, information on the internal structure and local committees, internal documents, internal announcements, and access to applications intended to simplify internal procedures.

There is also data stored in the database that is not published in either modes, but that is used for other services, and that is accessible through a content management system automatically generated by ERW starting from an entity-relationship diagram specified by an ERL file.

Site Map

     Department        Research        Teaching        Intranet        External Links  

FAQ (Frequently Asked Questions)

Why is the font size so big/small?

The font size used in this site is not fixed; rather, it depends on your browser preferences. Using the configuration menu each user can change the font size at will.

I use Netscape 4.x, and the graphical presentation is poor. Why?

Some releases of Netscape 4.x do not enable the style sheets unless Javascript is enabled too. Please check in your preferences that both style sheets and Javascript are enabled (enabling Java is not necessary).

I wait several seconds to see the pages. Why?

The site has been implemented using "light" techniques that provide high data access speed and throughput. Slow access is due uniquely to bad browser configuration, slow connection or firewalls. In particular, it is wise to avoid proxies whose bandwidth is not known, and, for internal users, to disable proxies inside the domain "" by using the appropriate browser configuration options.

Software & Technology

The W3C (World Wide Web Consortium) was founded in October 1994 to lead the World Wide Web to its full potential by developing common protocols that promote its evolution and ensure its interoperability. Services provided by the Consortium include: a repository of information about the World Wide Web for developers and users; reference code implementations to embody and promote standards; and various prototype and sample applications to demonstrate use of new technology. Initially, the W3C was established in collaboration with CERN, where the Web originated, with support from DARPA and the European Commission. The DTI web site has been implemented strictly following the standards promoted by the W3C, and using extensively the tools it provides; as an example, you can validate the syntax of the page came from.

The DTI web site uses Cascading Style Sheets (CSS) to enhance the presentation. CSS is a Recommendation from the World Wide Web Consortium that gives authors and readers more control over the look and layout of HTML & XML documents. Using CSS, the HTML code becomes much simpler and more manageable; using relative measurements you can style your documents to look good on any monitor at any resolution; you have finer and more predictable control over presentation; you can define the look of a site in one place, and change the whole site by changing just the one file; finally, people with obsolete browsers can still see your pages.

Linux is a free Unix-type operating system originally created by Linus Torvalds with the assistance of developers around the world. Linux is an independent POSIX implementation and includes true multitasking, virtual memory, shared libraries, demand loading, proper memory management, TCP/IP networking, and other features consistent with Unix-type systems. Developed under the GNU General Public License, the source code for Linux is freely available to everyone.

Apache is the most widely used web server available today, both in the proprietary and in the open-source categories. It is a de facto standard: it provides a powerful, flexible, HTTP/1.1 (RFC2068) compliant web server; it is highly configurable and extensible; it provides full source code and comes with an unrestrictive license.

PostgreSQL is an object-relational database management system (ORDBMS) based on POSTGRES, Version 4.2, developed at the University of California at Berkeley Computer Science Department. The POSTGRES project, led by Professor Michael Stonebraker, was sponsored by the Defense Advanced Research Projects Agency (DARPA), the Army Research Office (ARO), the National Science Foundation (NSF), and ESL, Inc. PostgreSQL is an open-source descendant of this original Berkeley code. It provides SQL92/SQL99 language support and other modern features.

PHP dinamically generates web pages, and in particular provides sophisticated tools to integrate the web server and data base management systems. Much of its syntax is borrowed from C, Java and Perl, with a couple of unique PHP-specific HTML-oriented features. It is distributed under the GNU General Public License.

The ht://Dig system is a complete world wide web indexing and searching system for a domain or intranet. It is not meant to replace the need for powerful internet-wide search systems like Lycos, Infoseek, Google and AltaVista. Instead it is meant to cover the search needs for a single company, campus, or even a particular sub section of a web site.

PNG (pronounced "ping") is the Portable Network Graphics format, a format for storing images. Unofficially its acronym stands for "PNG's Not GIF". PNG was designed to be the successor to the once-popular GIF format, which became decidedly less popular right around New Year's Day 1995 when Unisys and CompuServe suddenly announced that programs implementing GIF would require royalties, because of Unisys' patent on the LZW compression method used in GIF. The PNG format was developed on the Internet as an alternative format, and it is endorsed as the web standard bitmap-graphics format by the World Wide Web Consortium. The DTI web site is 100% GIF-free.