Showing posts with label Assessment. Show all posts
Showing posts with label Assessment. Show all posts

Sunday, 8 January 2012

Web 2.0 as a collaborative tool

Introduction

This blog will outline the background of Web 2.0, discuss its use as a publishing tool using the Internet as a platform and explore its potential in relation to developing technologies. While Web 2.0 is closely related to the semantic web and the growing openness of the Internet (sometimes referred to as ‘Web 3.0’), this is outside the scope of this blog and will not be covered.

The term ‘Web 2.0’ was first used by O’Reilly Media, Inc. in 2004. There has been confusion regarding a definition, as the use of ‘2.0’ sounds like a software upgrade. In fact, Web 2.0 was a term originally used to distinguish Internet companies that had survived the dotcom bubble bursting in 2001. O’Reilly (2005) used 6 headings to define Web 2.0:
1. The Web as Platform
2. Harnessing Collective Intelligence
3. Data is the Next Intel Inside
4. End of the Software Release Cycle
5. Lightweight Programming Models
6. Software above the Level of a Single Device

Since then, O’Reilly has emphasised that ‘the network is the platform’, and that ‘the cardinal rule is... users add value’ (KamlaBhatt, 2007). In others words, collaboration is central to the concept of Web 2.0. It is important to distinguish between Web 2.0 and social networking websites; Web 2.0 is both the platform on which technologies and sites have been built, as well as a space for user-generated content (UGC), rather than the social networking sites like Facebook and Twitter, which are built upon the platform (Cormode & Krishnamurthy, 2008).

This blog will explore three themes, with an emphasis on social networking websites. First, it will discuss the Internet as a platform, including publishing information. Second, it will consider digital data representation, and current use and future potential for information scientists in central government. Finally, it will investigate the latest Web 2.0 technologies and concepts, reflecting on their impact in the digital environment.


Publishing Information

As indicated above, the Internet (or network, or Web) is the platform. This means there is no longer a requirement to have specific software or a particular machine to access the same content. This is why, for example, both Mac and Windows users can utilise Facebook, Twitter, Flickr, and other Web 2.0 sites. This has opened up accessibility to a much wider user-base, as it is no longer necessary to program in HTML to publish to the Web because these sites provide an interface. The OECD suggests that this has democratised publishing on the Internet with a rise of ‘amateurs’ (Vickery & Wunsch-Vincent, 2007). In addition, Xu et al (2010, p.9) indicate that ‘the Web is becoming a useful platform and an influential source of data for individuals to share their information and express their opinions’. This sharing of opinions has changed the dynamic of publishing information, from the one-to-many ‘push’ of Web 1.0 to a many-to-many collaborative environment in Web 2.0.

The user-base of Web 2.0 sites is wider still due to technological advances in recent years. People can now use mobile phones, as well as tablets and laptops to access the Internet. As O’Reilly (2005) states in his definition of Web 2.0, this represents software above the level of a single device. It is possible to access information anywhere with an Internet connection. Additionally, it is easier to publish information on the go, as well as consume it. Most Internet-capable phones and tablets have cameras and facilitate the capture and sharing of information by users with Web 2.0 publishing tools. A common example of this is people sharing holiday photos instantly on Facebook and Twitter.

Blogging websites are publishing tools, and have become increasingly popular. Blogs, such as Blogger, enable users to post online using a familiar interface. While there is the option to write in HTML, many people simply use the text box and formatting buttons (see Fig 1). Several central government departments use blogs on their intranet sites. The Department for Business, Innovation and Skills uses the blogging tool in SharePoint, with senior staff and teams providing updates on their work via a blog. This is an effective way of publishing information, as all staff members have access and can use tools on the intranet to comment and provide feedback. An additional benefit is that no further training is required to use the software, as the interface is familiar to staff. As it is hosted on the intranet, it is accessible to all users as it is possible to apply personalised settings to profiles on their PCs, and to Internet Explorer, which is the browser used to access the SharePoint intranet site.

Screen shot of the Blogger Interface

Fig 1 – the blogging interface on Blogger

A further advantage to blogging is the wide availability of tools, and the ability to create professional-looking web pages with ease (Evans, 2009). Blogs are used by businesses and professionals, looking to publish information. These bloggers also use other Web 2.0 sites, such as Twitter, to capture a wider audience for their blog and to promote their business. A recent survey demonstrated that ‘almost all Professional Full Timers (93%) and Professional Part Timers (91%) us[e] Twitter’ (StateOfThe Blogosphere, 2011). Using multiple Web 2.0 sites allows professionals to push their information efficiently and easily.


Representation of Digital Data

Formerly, users who wished to publish content on the Internet needed an understanding of programming, such as using HTML to publish a web page. With Web 2.0 technologies, this is no longer a requirement as websites provide an interface. An example of this is the use of Yammer, a social networking tool, by a central government department to encourage its staff to work collaboratively. Maness (2006) argues that Web 2.0 ‘is not a web of textual publication, but a web of multi-sensory communication.’ This is the way in which Yammer is used by civil servants; they can publish their ideas, and can also give and receive feedback interactively. It also enables them to promote other people’s ideas by sharing links to other pages, such as news articles and publications. The web is no longer being used purely as a ‘push’ medium, but has been ‘transformed into a dynamic network harnessing creativity and collective intelligence’ (Fraser & Dutta, 2008, p. 2).

This provides a good opportunity for information scientists in government. The use of blogs and wikis allows them to organise their information in an accessible way, giving users the option to add their own folksonomies to optimise information retrieval. O’Reilly (2011) describes this exploitation of web applications as harnessing ‘collective intelligence’, which was one of his definitions of Web 2.0 in 2005. Information scientists could potentially use applications to try to capture information and understand ways of working within their organisations. Using Web 2.0 technologies offers information professionals a great advantage, as they can build applications to cater to their users’ needs. The advantage of this is that, unlike some information systems used, applications tend to be intuitive thus reducing the requirement for training for users. The use of applications also allows information professionals to address ‘one size fits all’ software, such as forcing an Electronic Documents Records Management (EDRM) system on users. It is possible to hide the EDRM system behind a Web 2.0 interface, which can be more easily adjusted to users’ needs. For example, some government departments are looking at implementing a more user friendly SharePoint interface to document management systems, while maintaining the underlying EDRM system to allow information specialists to apply information management policies, such as access controls and retention and disposal rules, behind the scenes.

Central government departments are not the only public service using Web 2.0 technologies to share information. Mitchell (2011) describes how the Deputy Chief Constable from Tayside Police encourages his staff to ‘tweet on the beat’. This creates both a challenge and opportunity for information scientists; the challenge will be to stay on top of the amount of information being published by users, and to try to keep information organised and presented in a meaningful way. These websites do offer some methods of organising information, such as Twitter lists which allows you to create a stream from the users in that group. The advantage of this is an accessible representation of digital information, which offers real-time information for Twitter users, externally and within the organisation. The disadvantage of relying on Twitter would be a loss of control, as information specialists would not easily be able to apply retention schedules, or ensure digital continuity without capturing Tweets and storing them on an internal system. This raises some integrity issues; for instance, context may be lost if police staff include links to external sites which are not captured. Furthermore, the use of Twitter raises the question of ownership and security; the Twitter terms and conditions make it clear that while information posted is your responsibility, they are granted a royalty- free licence to ‘use, copy, reproduce, process, adapt, modify, publish, transmit, display and distribute’ it (Twitter, Terms of Service). In this environment it is important that information specialists provide clear guidelines for staff using Web 2.0 services, to address these risks, although this is no guarantee that they will be adhered to.


Recent Advances

Technological developments have allowed these Web 2.0 applications to flourish. When Tim Berners-Lee first imagined the World Wide Web, he claims that he envisaged the interactive environment that is now associated with the term Web 2.0 (Laningham, 2006). The evolution of information and communications technology (ICT) has made it possible for people to use wikis, blogs, social networking, and the other applications described as Web 2.0. A noteworthy difference is that the use of these technologies has changed the way that people work. Fraser & Dutta (2008) suggest that while organisations are vertical hierarchies, networks are horizontal by nature. This leads to the conclusion that using Web 2.0 applications will enable people to cross these hierarchical divides and work together without barriers. To refer back to the example of government using Yammer, members of staff have noticed that people are no longer working in silos, and are consulting colleagues at all grades across the department, as the use of social networking tools has allowed them to locate people with expertise efficiently. The use of an online digital environment has empowered staff to work flexibly and capably.

Furthermore, a recent study by the University of Melbourne suggests that browsing online, increases productivity within an organisation. Coker (2011) established that those who participated in workplace Internet leisure browsing (WILB) had significantly higher productivity than those who did not. A Socialcast infographic also demonstrates the balance between connectivity and productivity in Europe (see Fig 2) with the use of social networking websites (Dugan, 2011).

Infographic showing the balance between connectivity and productivity in Europe

Fig 2 – Infographic showing the effect of social networking on employees in Europe

Looking to the future, there is a relatively new technology which could have a significant impact on information specialists: cloud computing. This has been defined as ‘a model for enabling ubiquitous, convenient, on-demand network access to a shared pool of configurable computing resources...’ (Mell & Grance, 2011). Many companies already use a similar model to this, as EDRM Systems retrieve data from a central server. Cloud computing goes further, as the software and data are all stored online and computers are used to access an online environment in which to work. Cloud computing relates back to O’Reilly’s concept of software above the level of a single device, as it provides software as a service (see also Luftman & Zadeh, 2011). The challenge for information professionals is to exploit and add value to this transition to decentralised information systems, as it will require a difference level of support for users. Other implications to consider will be the amount of control information professionals have over systems – for example, if a local EDRMS is replaced by a central cloud where information is stored, how will it be organised? How easy will it be to control access, and to maintain information integrity?


Conclusion

This blog has explored the use of Web 2.0 as a method for publishing digital information. The first conclusion that can be drawn from the examples outlined is that the ability to publish information with the Internet as a platform, as described by O’Reilly in his definition of Web 2.0, has opened up accessibility to information for a wide variety of people. Individuals, groups and companies can easily publish and use digital information. The example of blogging demonstrates how Web 2.0 tools and sites are enabling people to access and share information proficiently.

Second, online information is accessed in a different way; previously information was ‘pushed’ by publishers on read-only web pages. Web 2.0 websites encourage user interaction, indicating that information is used more dynamically, allowing ideas to develop in a creative, collaborative space; O’Reilly’s concept of collective intelligence. This blog has observed the importance of information scientists in this environment, to offer methods of organising and measuring the value of the vast quantity of information published and absorbed online. Specialist skills will continue to be valuable to meet these challenges and exploit potential uses of Web 2.0 technologies.

O’Reilly’s definition of Web 2.0 as software above the level of a single device was discussed. Technological developments have allowed people to remain connected almost limitlessly, using applications on mobile devices to publish and read information online, facilitating efficient information-related tasks, such as streaming Tweets and sharing links. This blog has looked to the future to evaluate the usefulness of Web 2.0 technologies going forward. Arguably, a significant change will occur as use of cloud technologies is adopted by individuals, businesses and public services.

It is difficult to draw a conclusion about the impact Web 2.0 technology will have on the information profession as a whole, but it can be said with some certainty that information will continue to need organising and maintaining however it is presented and accessed by users. Information professionals will not necessarily be managing information in the traditional sense, acquiring, cataloguing and distributing it, but they will move forward as application developers, database managers and advisers on legislation and best practice as users take more control over publishing, organising and using information.


Bibliography

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Aharony, N. (2011) “Web 2.0 in the professional LIS literature: An exploratory analysis” Journal of Librarianship and Information Science 43(3)

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Sunday, 30 October 2011

The World Wide Web and HTML


My blog, Information Overload!, can be accessed at http://kaysafus.blogspot.com/


In this blog I will discuss the World Wide Web (WWW, or Web) and Hypertext Markup Language (HTML) as a technology for the digital representation of information, in relation to Web 1.0. I will examine the technical details with a short background history, before considering the opportunities and limitations of using the Web and HTML.

The Web is not the same thing as the Internet. The Internet is the channel through which the Web can function. Email also uses the Internet as a channel. The Web was designed to link information stored on computers. Tim Berners-Lee, its inventor, worked at CERN and originally designed it to enable him to remember connections between people, computers and projects. His vision was to have a ‘single, global information space’ (Berners-Lee, 1999, p. 5). Specifically, his solution was to use hypertext to allow users to move between documents. In his proposal, Berners-Lee offered the solution of a ‘universal linked information system’ (Berners-Lee, 1990). He developed HTML as the primary language for web documents, allowing users to instruct browsers how to display content on a webpage using tags (Chowdhury, 2008).

HTML works by using tags to inform the Web browser how information is to be portrayed on the page. A tag is enclosed in triangular brackets, for example <HTML> informs the browser that this is where the HTML begins, and </HTML> informs it that the HTML ends. I have created a website which demonstrates some of the different tags available.

The term Web 1.0 describes the Web in its early stages, when it was primarily designed to display and share information, rather than allowing users to add their own content, for example by contributing to wikis. Early webpages tended to be rather plain, and merely displayed information and provided hyperlinks to relevant documents elsewhere on the Web. Over time, presentational tags were developed to improve the appearance of webpages, which I will discuss later.

The Web and HTML provide a number of opportunities for the representation of information. It was designed to end incompatibility between different computers (Berners-Lee, 1999). Webpages can be viewed on different machines, presenting information consistently, and allowing users to view and navigate between information in the same way. This is still important today with a huge range of devices and programs used to access the Web. The Web and HTML have been applied to share information globally effectively in all manner of fields, including Information Science. Most webpages use navigation with hyperlinks to assist users, such as guidance on using the catalogue and on Information Management policies on the National Archives webpages here.

Using HTML is fairly simple; therefore it is popular (Chowdhury, 2008). Unlike other computer languages, HTML is in plain English and does not require users to have an in-depth knowledge of programming. Unlike more complex technologies for representing information, such as using SQL to create databases, HTML offers users an easy method to display and share digital information.

Another reason that HTML can be very useful for information professionals is that it allows metadata tags (or meta tags) to improve the experience for a user without them even being aware of it. For example, adding keywords to a webpage describes the page’s content. Using meta tags effectively can offer powerful navigation and improve information retrieval (Rosenfeld & Morville, 2002).

However, there are also limitations to the Web and HTML. In Web 1.0, HTML was not a multi-lingual language. Many languages use scripts which cannot be represented in standard HTML, because it is ‘based on a very limited coded character set.’ (Yergeau, no date) So for example, the Omniglot webpage uses images to demonstrate Sanskrit writing, which means that users cannot copy and paste characters, or interact with them as easily as with Latin languages.

Additionally, while HTML was originally compiled of elements for describing the structure of information, such as paragraphs, hyperlinks and headings, it evolved to include presentational tags, including fonts, colours and tables. This has been attributed to the introduction of Mosaic (Meyer, 2000). Presentational tags made HTML coding confusing and untidy, and caused interoperability problems (Chowdhury, 2008). This disadvantage of HTML has been recognised, and the World Wide Web Consortium (W3C) introduced a recommendation called CSS. CSS stands for Cascading Style Sheets, and offers rich styling of web documents (Meyer, 2000). This removes the need for tags like <B> (for making text bold). The use of CSS created another opportunity, as HTML can return to its original purpose, which was as a structural language, and the presentational aspect of webpages can be addressed by using CSS. This is useful for information professionals, as it helps to separate out the design aspect. For example, it adds stronger argument that searching is an information specialist area rather than an IT or web design area, as the emphasis is on the structure and content of pages.

I have concluded that HTML and the Web are appropriate technologies for the digital representation of information, in relation to Web 1.0. With my webpage, I demonstrated how HTML tags and hyperlinks can be applied technically for the management of digital information. Today the Information Profession exploits HTML and the Web extensively. In particular, the Web is used for information sharing, for structuring information and for ease of navigation, as demonstrated on The National Archives webpages. Meta tagging is also incredibly useful to information professionals, notably for powerful searching and retrieval functions. HTML is an effective tool to provide access to information because it permits information to be displayed on a range of devices. Furthermore, HTML is relatively easy to learn as it uses plain English and does not require a thorough knowledge of programming, therefore allowing more people to use it.

I investigated the constraints of HTML and the Web as Web 1.0 technologies. I recognised the issue with displaying non-Latin languages as script. This was a problem for basic Web 1.0 webpages; it seems that these could only be represented on a webpage with images, which reduced options for manipulation of information. I highlighted the limitations of tagging, particularly how HTML coding became cluttered with presentational tags. I concluded that this problem became less significant with the introduction of Cascading Styling Sheets, which allowed programmers to separate structural and presentational code.


Berners-Lee, T. (1990) Information Management: A Proposal [online] Available at http://www.w3.org/History/1989/proposal.html [Accessed 22 October 2011]
Berners-Lee, T. (1999) Weaving the Web: the origins and future of the World Wide Web, London: Orion Business
Chowdhury, G. G. and Chowdhury, S. (2008) Organising Information: From the Shelf to the Web, London: Facet Publishing
Meyer, E.A. (2000) Cascading Style Sheets: The Definitive Guide, Sebastopol: O’Reilly Media Inc.
Omniglot (no date) Sanskrit [online] Available at http://www.omniglot.com/writing/sanskrit.htm [Accessed 22 October 2011]
Rosenfeld, L. and Morville, P. (2002) Information Architecture for the World Wide Web, Second Edition. Sebastopol: O’Reilly Media Inc.
The National Archives (no date) Catalogue [online] Available at http://www.nationalarchives.gov.uk/catalogue/default.asp?j=1 [Accessed 22 October 2011]
Yergeau, F. (no date)  A world-wide World Wide Web. [online] Available at http://www.w3.org/International/francois.yergeau.html [Accessed 22 October 2011]