Emerging Technologies: De-mystifying Web 2.0

Transcription

1 Emerging Technologies: De-mystifying Web 2.0 William Dana Academic Support Resources

2 William Dana Lead Business Analyst Academic Support Resources, Universi ty of Minnesota Not a developer, an analyst

3 Introductions

4 Web 2.0 what is it? Source:

5 Is this it? Web 2.0 is the business revolution in the computer industry caused by the move to the Internet as a platform, and an attempt to understand the rules for success on that new platform. - Tim O Reilly source:

6 How about this?

7 Or, maybe this.

8 Everyone de-mystified? Key elements: User is in control Data driven The kind of computer does not matter The kind of browser does not matter Nothing is ever done

9 Of course, new tech means fun new words! Web Services SOA XML WSDL RSS Mash-up CSS Social Networking Wiki Blog WYSIWYG AVATAR Source:

10 Disclaimer Web 2.0 definitions are open to interpretation. In fact, you can change the definition to suit your needs. Fair warning.if you have a phone with web access, you could probably change the definitions right now!

11 SOA Service-Oriented Architecture Sometimes pronounced So-ah Wikipedia. org: One can define a service-oriented architecture (SOA) as a group of services that communicate with each other. The process of communication involves either simple datapassing or two or more services coordinating some activity. Intercommunication implies the need for some means of connecting two or more services to each other.

12 Web Service A mechanism developers use to share information/data between systems In geek: A Web service is defined by the W3C as "a software system designed to support interoperable machine-to-machine interaction over a network". Web services are frequently just Web APIs that can be accessed over a network, such as the Internet, and executed on a remote system hosting the requested services. - Wikipedia Acronyms in this definition:=2 - Sweet! Last 5 years: we have seen an overwhelming adoption of web services across IT vendors and products This is established a standard language for exchanging information

13 Why should we care about web services? SOA and services are revolutionizing how data is presented on the web. Services provide data in a way that is easily modified and shaped to conform to an interface. Services allow users to see consistent content, regardless of where they are. For example

14 But first Who can read XML? E v e r y o n e! <Campus CampusCode="UMNTC" TermCode="Spring 2009"> <CourseInfo> <Catalog>1001</Catalog> <Subject>ANTH</Subject> <SubjectDescription>Anthropology</SubjectDescription> <Description>meets Lib Ed req of Biological Sciences/Lab Core</Description> <Title>Human Evolution</Title> <ClassInformation ClassNumber="" SectionNumber="001"> <ClassStatus>Active</ClassStatus> <Component>LEC</Component> <MeetingSchedule> <StartAndEndTimes>11:15 A.M. - 12:30 P.M.</StartAndEndTimes> <MeetingDays>Tu,Th</MeetingDays> <StartAndEndDates>01/20/ /08/2009</StartAndEndDates> <Room>175</Room> <Facility>WilleyH</Facility> <Location>TCWESTBANK</Location>

15 XML - Extensible Markup Language XML, in combination with other standards, makes it possible to define the content of a document separately from its formatting, making it easy to reuse that content in other applications or for other presentation environments. Most importantly, XML provides a basic syntax that can be used to share information between different kinds of computers, different applications, and different organizations without needing to pass through many layers of conversion. wikipedia.org SOAP Simple Object Access Protocol XML /SOAP is how all of this is possible.

16 Now our example Question: Where do students need to see their adviser information? Answer: Everywhere! Problem: Adviser information i lives in our central SIS database (PeopleSoft).

17 Adviser Service Questions we need the system to answer: Student: Who are my advisers and members of my advising committee(s). Adviser: Who are my advisees? Service provides the information to developers using a WSDL. Great what s a WSDL?

18 WSDL Web Services Description Language WSDL: (pronounced 'wiz-dəl' or spelled out, 'W-S-D-L') is an XML-based language that provides a model for describing Web services.- wikipedia.org To invoke a service, a consuming application must know the service s s interface, including how to structure content and which transport protocol to use. WSDL explicitly describes this interface in a standardized, machine-readable format fit for consumption by tools. We, as a central unit, created the rules to govern how adviser information should be returned in the WSDL.

19 What applications currently use the adviser service? Web Registration Students and staff see Graduation Planner APAS- degree audit the same information eportfolio no matter where they College of Liberal Arts Enrollment Tracking System are in our system. University of Minnesota-Duluth: Adviser Connect MyU Portal

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23 RSS - Really Simple Syndication RSS is one way to give control back to the user. Through RSS, I control what information displays on my page. A family of Web feed formats used to publish frequently updated works such as blog entries, news headlines, audio, and video in a standardized format. wikipedia.org For example: Source:

24 Mash-up Web applications that combines data from one or more sources into a single integrated tool. implies easy, fast integration, frequently done by access to open APIs and data sources to produce results that were not the original goal of the data owners. For example:

25 Couple more terms related to services: Widget a feed with design elements built in to the code. Middleware - a piece of software that connects two or more software applications, allowing them to exchange data. Portal a site designed to aggregate and personalize information. CSS Cascading Style Sheet a way to create web pages that makes it easy to change visual elements on the page.

26 Social Networking Let the fun begin!

27 Social Networking

28 Avatar Sanscrit definition: incarnation In geek: an electronic alter-ego

29 Blog Simply put an online diary (a contraction of the term weblog) is a website, usually maintained by an individual with regular entries of commentary, descriptions of events, or other material such as graphics or video. Entries are commonly displayed in reversechronological order. "Blog" can also be used as a verb, meaning to maintain or add content to a blog. wikipedia.org

30 Blogs and information dissemination Good for newsletters Good for RSS Good for self-indulgent, naval-gazing, social media narcissists i Twitter: Micro-blogs. Anyone in the room using Twitter for work?

31 Wiki a collection of web pages designed to enable anyone with access to contribute or modify content. For example:

32 WYSIWYG What you see is what you get. Allows a user to make changes to a web page without knowing a programming language.

33 Next.. mos_the_sixth_sense.html

34 Emerging Technologies: De-mystifying Web 2.0 William Dana Academic Support Resources