The document discusses the characteristics of Web 2.0, which emerged from brainstorming between O'Reilly Media and MediaLive International. Web 2.0 is characterized as being multidirectional, allowing for direct contact and interaction between users through social networks, search capabilities, and collaborative knowledge sharing. Some key aspects of Web 2.0 include social networks that facilitate participation and sharing, internet applications similar to desktop programs, and service-oriented structures that allow information and services to be shared across different Web 2.0 applications. The document also outlines design patterns for Web 2.0 applications.

1. Universidad Popular Autónoma del Estado de Puebla.
MAESTRÍA EN EDUCACIÓN MATEMÁTICA SOFTWARE EDUCATIVO
Web 2.0
The term web 2.0 isn’t more than the term to group and differentiate the significant advances and
modifications on web sites that were created from web sites of the web 1.0 or static web, the
term WEB 2.0 emerged from a brainstorming carried out between O’Reilly y MediaLive
International, where it was established that the web wouldn’t crash but it was renewed with
strength.
It was established clearly that the web wasn’t any more unidirectional but it became
multidirectional, where it was established direct contact among web users allowing the
development of the social networks because of their advantages of expression and opinion, to
search and receive information, and collaboration in creating knowledge and compartment
contents.
Characteristics:
>Our work platforms are web page itself, that supplies us tools on-line always available.
>promote the development of collaborative work and learning, this creates the “collective
intelligence”.
>enriches the user experience which is caused by the easy access and usage of the content web
and with a friendly interface.
Like all great achievements need a mixture of right ingredients, in the case of the web 2.0 the
ingredients are:
 A social network.- It characterizes by all its services are participative. The 2.0 technology
users can relate one another in an easy and open way with other people, to share
resources and communicate in a simultaneous and immediate way.
 Applications on internet (RIAS).-They are made in order to get the experience with
applications online similar to those that the users own with installed programs on their
desk.
 Oriented structures to services.- they allow to share information and services among
different applications of the web 2.0.
Creative commons
It is a non-profit association oriented to give to the author the power of decisions about the usage
limits and exploitation of his work on internet. The licenses CC help to keep the copyright, at the
same time they permit certain exceptions under some rules.
The main applications that can be distinguished in the web 2.0 are: Blog, wikis, podcast, youtube,
Flickr, Slideshade, Del.icio.us., GoogleReader, Social networks, shared virtual books, etc..

2. Universidad Popular Autónoma del Estado de Puebla.
MAESTRÍA EN EDUCACIÓN MATEMÁTICA SOFTWARE EDUCATIVO
Instructional implications of the web 2.0
The web 2.0 constitutes a space where it offers broader forms of generating learning-teaching like
forums, blogs, wikis, because in that field people can develop competences not just those which
refers to tics, but also those argumentative ones in addition to collaborative work among its
learning networks, which requires a new disposal of teachers to new changes which can lead them
to the tics, because it could be impossible the usage of the web.
Design patterns for WEB 2.0
1. The long tail: The small web sites constitute most of the internet content; the reduced
alcoves are most of the possible implications of the internet. Therefore: Take advantage of
the usage of the client self-service and the algorithmic procedures of the data in order to
get the whole web, to the ends not just the center, to the long tail; not just to the head.
2. The data are the next Intel Inside: The applications base more and more in the data.
Therefore: in order to get a competitive advantage, try to be the owner of the only font of
data difficult to get.
3. The users add values: The key of the competitive advantage in the internet applications is
the degree in which the users add their own data to those ones given from you. Therefore:
Do not restrict its “architecture of participation” to the software development. Engage the
users implicit and explicit in the addition of value to its application.
4. Network externalities by defect: Just a small percentage of users will have taken the
trouble to add value to their applications. Therefore: Establish parameters by defect
included in order to allow the add of data of users like lateral effect of the usage of the
application.
5. Some reserved rights: the protection of the intellectual property limit the reuse and
impede the experimentation. Therefore: when the benefits come from the collective
adoption, not from the private restriction, make sure that the barriers of adoption are low.
Follow the existing standards, and use licenses which contain the minimum possible
restrictions. Design for the 'hackeability”and the remixed.'
6. The perpetual beta: When the devices and the programs are connected to internet, the
applications are not more a software gadget, they are services in use. Therefore: Do not
package new functions in monolith versions of the package but in the other hand add
them regularly like a part of the experience of the normal user. Engage your users like
testers in real time, and design the service in a way that you know how people use those
new functionalities.
7. Cooperate, do not control. The web 2.0 applications are built since network services of
data that cooperate. Therefore: Offer interfaces of web services and syndication of
contents, and reuse the services of data that belong to others. Support the light program
models that permit systems ill overlapped.
8. Software not limited to one device: The PC is not more the only access device for the
internet applications, the applications that are limited to just one device from the
beginning for integrating services through portable devices, PCs, and internet servers.