Monday, March 28, 2005

A non-technical reader's guide to RSS

What is RSS?

RSS allows you to see updates from your favourite web sites without having to manually check each site. This is particularly useful for frequently updated sites such as blogs or news sites. RSS lets you follow any number of (RSS-enabled) websites from the comfort of your newsreader.

How do I use it?

1) Get yourself a newsreader, by creating an account with a free online service like Bloglines, or downloading a desktop application (similar to e.g. Outlook) such as FeedDemon for Windows or Shrook for Mac (a more comphensive list of desktop applications—including free ones—can be found ).

2) Find some RSS feeds. Newsreaders come with plenty of preset feeds to choose from, but you're bound to want to add RSS feeds from other websites too. You can find a site's feed(s) by looking for a button or link that says XML, RSS and/or "Syndicate this site"*.

3) For each feed you wish to add, click on the button or link on the web page, and select and then copy the address that comes up in your web browser** (don't worry about the nonsense text you'll often see in the main page). Then follow the instructions in your news aggregator to subscribe to a new feed, and paste in the link.

4) You'll see a list of all the recent items in your feed subscriptions, with summaries or full versions of their content. Then, every time a feed is updated with a new item, it will automatically appear in your newsreader—your personalised newspaper!

*these terms all mean what we're generically calling "RSS"
**an application such as Internet Explorer

Friday, March 25, 2005

Wikipedia entry for Digital identity

I noticed the other day that Wikipedia had no stand-alone entry for Digital identity (just a brief section within Identity), so I decided to try my hand!

I've pasted a de-wikified version below; click here for the Wikipedia entry. I'm hoping that all you good digital identity debaters will get stuck into improving and adding to it... : ).
Digital identity is the representation of identity in terms of digital information.

A digital identity can be understood as the set of digital information that is attributable to any given entity. This entity may be human (an individual or a community), a physical object, or even digital information itself.

Identity through relationship

An observer's perception of the digital identity of an entity is inevitably mediated by the subjective viewpoint of that observer (just as it is with physical identity). This becomes clear when one considers the implications of the concept of "attribution" within the definition: in order to attribute information to an entity, the attributing party (the observer) must trust that the information does indeed pertain to the entity (see Authentication below). Conversely, the entity may only grant the observer selective access to its informational attributes (according to the identity of the observer from the perspective of the entity). In this way, digital identity is better understood as as a particular viewpoint within a mutually-agreed relationship than as an objective property.

Authentication

Authentication is a key aspect of trust-based identity attribution, providing a codified assurance of the identity of one entity to another. Authentication methodologies include the presentation of a unique object such as a bank card, the provision of confidential information such as a password or the answer to a pre-arranged question, the confirmation of ownership of an email address, and more robust but relatively costly solutions utilising Encryption methodologies. In general, business to business authentication prioritises security while user to business authentication tends towards simplicity. New physical authentication techniques such as iris scanning, hand-printing and voice-printing are currently being developed and in the hope of providing improved protection against identity theft.

Ontologies of identity

Digital identity attributes—or data—exist within the context of ontologies. A simple example of an ontology is "a cat is a kind of animal". An entity represented in this ontology as a "cat" is therefore invariably also considered an "animal". In establishing the contextual relationship of identity attributes to one another, ontologies are able to represent identity in terms of pre-defined structures. This in turn allows computer applications to process identity attributes in a reliable and useful manner. XML (eXstensible Markup Language) has become a de-facto standard for the abstract description of structured data.

Ontologies inevitably reflect culturally and personality relative world views. Consider two possible elaborations of the above example:

1) "A cat is a kind of animal. A domestic cat is a kind of cat and is a pet" 2) "A cat is a kind of animal. A domestic cat is a kind of cat and is edible by humans"

Someone searching Ontology 1 for pets would find "domestic cat", whereas a search of Ontology 2 for foodstuffs would yield the same result! We can see that while each ontology is useful within a particular cultural context or set of contexts, neither represents a universally valid point of view on domestic cats.

The development of digital identity network solutions that can inter-operate ontologically-diverse representations of digital identity is a contemporary challenge. Free-tagging has emerged recently as an effective way of circumventing this challenge (to date, primarily with application to the identity of digital entities such as bookmarks and photos) by effectively flattening identity attributes into a single, unstructured layer. However, the organic integration of the benefits of both structured and fluid approaches to identity attribute management remains elusive.

Networked identity

Identity relationships within a digital network may include multiple identity entities. However, in a decentralised network like the Internet, such extended identity relationships effectively require both (a) the existence of independent trust relationships between each pair of entities in the relationship and (b) a means of reliably integrating the paired relationships into larger relational units. And if identity relationships are to reach beyond the context of a single, federated ontology of identity (see Ontologies of identity above), identity attributes must somehow be matched across diverse ontologies. The development of network approaches that can embody such integrated "compound" trust relationships is currently a topic of much debate in the blogosphere.

Integrated compound trust relationships allow, for example, entity A to accept an assertion or claim about entity B by entity C. C thus vouches for an aspect of B's identity to A.

A key feature of "compound" trust relationships is the possibility of selective disclosure from one entity to another of locally relevant information. As an illustration of the potential application of selective disclosure, let us suppose a certain Diana wished to book a hire car without disclosing irrelevant personal information (utilising a notional digital identity network that supports compound trust relationships). As an adult, UK resident with a current driving license, Diana might have the UK's DVLA vouch for her driving qualification, age and nationality to a car-rental company without having her name or contact details disclosed. Similarly, Diana's bank might assert just her banking details to the rental company. Selective disclosure allows for appropriate Privacy of Information within a network of identity relationships.
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Flickr colour picker

This Flickr colour picker app is just lovely. : )

Blogs in Action

I attended the Blogs in Action seminar yesterday evening, at the Polish Club on Exhibition Road, London. Suw Charman has a comprehensive write-up of the event on her blog, to which I defer.

Suffice to say there were some fascinating ideas in the presentations, particularly for me in that of John Dale of Warwick University's warwickblogs. warwickblogs is a community blog network (currently with 3105 blogs!) for the university's students, faculty and staff. Warwick University elected to build their own blogging system, and incorporated privacy controls that allow the development of granular communities within the overarching university community. So, for instance, a second-year undergraduate sciences student might elect to make her curriculum-focused blog visible only to her fellow second-year undergraduate sciences students. Others might restrict access to their more social blog to a group of friends. Apparently, the proportion of private to public blogs within the network is currently about one to two.

This seems to me to be a really positive step towards the integration of persistent digital identity into decentralised online social networks. Of course, it's relatively easy for Warwick University to define the sub-communities of warwickblogs according the well-defined social and academic structures of their institution. To facilitate the organic emergence of that stuff in the wider world and web is a challenge of an order of magnitude higher...

Before and then after the presentations, I had some really interesting chats with a number of people: David Tebbut (teblog.com), Lee Bryant (Headshift.com), Adriana Cronin-Lukas (The Big Blog Company) Tom Coates (BBC, plasticbag.org), Andrew Carton (Treonauts Bloguide), Johnnie Moore (johnniemoore.com), James Cherkoff (Managed Blogs, Open Sauce Live) Jane Perrone (Guardian Unlimited, Horticultural), Loic Le Meur (Six Apart, loiclemeur.com) and (last but most certainly not least) Bobbie Johnson (Guardian Online, thisispomo).

Thanks for the brain-buzzing conversations, guys and hope to talk again soon. : )

Tuesday, March 15, 2005

the polarities of terror

I followed the Madrid Conference on Democracy, Terrorism and Security over the weekend via the blogs of Joi Ito, Rebecca MacKinnon and Ethan Zuckerman, the madridopendemocracy IRC chat channel and the Global Voices wiki. Joi, Rebecca and Ethan are all founding members of Global Voices, and they and Martin Varsavsky (and perhaps some anonymous others?) have produced a draft of a joint recommendation on "The Infrastructure of Democracy: Strengthening the Internet for a Safer World" on the Global Voices wiki.

I agree with pretty much all the conclusions of the recommendation, as applied to the underlying fabric of the net. Also, Global Voices is a great initiative which I am very supportive of. Finally, I understand from talking with Joi on IRC that the recommendation was drafted under considerable time pressure and in the context of a degree of hostility from some other conference participants, which couldn't have been very easy to contend with. In a way, then, what follows represent my comments on the recommendation in the context of the conference as a whole—and the media and political landscape beyond that.

Nevertheless, I feel it could be interesting and useful to unpack and examine three aspects of the recommendation.

Firstly, what exactly is the "terrorism" the recommendation alludes to? In a piece on his blog, Ethan paraphrases Kofi Annan's definition as follows: "Any action is terrorism if it causes death or bodily harm to noncombattants while intimidating citizens or attempting to force a government to act."

As such, the meaning of terrorism would seem to subsume the state-sponsored killing and torture that the U.K. and U.S. military have engaged in in Iraq. And yet the normative use of the term in the mainstream media refers exclusively to those who act against the interests of certain nations and their administrations. This usage reflects a particular set of cultural values that justifies violence in service of the imposition of those values on others who do not share them, and the protection of the interests that serve those values.

Indeed, Joi Ito writes on his blog:
It would be easy to define terrorism as attacks against human rights and international humanitarian law forbids attacks against innocent non-combatants which is often the definition used for terrorism. Kenneth Roth [of Human Rights Watch] points out that the US has a terrible position on human rights in the name of the war on terror. He pointed out that Alberto Gonzales told the Senate committee the Senate Convention Against Torture treaty doesn't prohibit the use of "cruel, inhuman or degrading" tactics, which makes the US the only country which is not upholding the Convention against Torture and Other Cruel, Inhuman or Degrading Treatment or Punishment as a matter of official policy. How can a country which is not upholding basic human rights expect to be respected and supported internationally?

It's a great point. Yet the term "terrorism" unavoidably brings a whole lot of cultural baggage along with it, particularly when used without framing discussion such as Kenneth's. The net's greatest strength is indeed—as the recommendation says—its ability to embrace multifarious points of view. But I believe we can only come to an understanding of how best to foster the net's growth if we use language that is abstracted from any specific political or cultural point of view, focusing rather on the wholistic nature of net that embraces diversity within itself. A common overarching objective we can unite around is, perhaps, the development of a healthy net that serves humanity as well as possible. My vision of such a net is one that encourages the development of trust-based communities that nevertheless tend towards transparency and openness—not ideal conditions for would be purveyors of "terror", whether they be government intelligence services or Al-Khaida operative cells.

Secondly, the recommendation alludes briefly to the concept of "truth". This would seem to imply the existence of a singularly valid point of view, which acts to collapse the quantum-state like multiplicity of the net into a singularity. Wikis might be held up as a counter-example here, facilitating as they do the convergence of many individuals' points of view into a unitary, albeit ever evolving, neutral point of view, or "NPV". Wikis are undeniably great collaborative tools. Nevertheless, I would argue that wikis simply express one possible point of view that is at worst tolerable to and at best completely representative of the opinions of each member of a certain group of people. People whose point of view lies outside that range—that is sufficiently different from the wiki's consensus point of view—are effectively excluded from the process, as their edits and additions will probably be reversed by other members.

The Global Voices wiki is a good example: I agree with almost all of what is currently on the wiki, and would feel comfortable editing and adding to these pieces (and have done so). However, the opinions I express in this piece seem to me to be sufficiently distinct from the recommendation's current substance for it to feel inappropriate to express them in an edit to the wiki, as that would entail a radical restructuring of the recommendation—hence this blog piece representing my individual point of view. Groups tend to lock into certain consensus belief systems and behaviours, and in doing so must inevitably exclude other, potentially equally-valid points of view from the groups version of "truth". Perhaps, then, talking about a singular truth—something that is objectively-knowable and universally-applicable—might be best avoided in favour of "truths" plural? : )

Finally, and perhaps most importantly, what does it mean to talk about an "open" net? The technical issues involved are too complex to discuss here, but in essence I feel the opposition of "open" and "closed" approaches to the net in some ways sets up a false dichotomy. Can we not rather agree on the imperative for maintaining the openness of the underlying infrastructure or fabric of the net—the physical and IP layers—whilst at the same time facilitating the building of communities within that fabric which, by their nature, will be semi-closed?

Without a degree of closure in community structures, there can be no intimacy or trust. I must be able too assert the facts that I am reliably identifiable as me and you are not, that I live in one physical community and you in another, that my family and social group is not the same as yours (although the latter may overlap)—and so on—in order build trust relationships with individuals and communities within the network. These trust relationships are necessarily at least semi-closed, in that only the people who can reliably assert identities relevant to those relationships are party to them. And it is surely in promoting the development of trust-based relationships that our best long-term hope of allaying "terror" lies.

At the moment, representations of identity on the net are at best piecemeal, fragmented across applications and technologies. Is not the real challenge facing us, as we ponder the net's evolution, that of facilitating the organic integration of closed and semi-closed community structures into a net whose fabric is fundamentally open and deregulated? To allow people to reach out from their digital cultural and social comfort zones to Others in their own way and their own time? It seems to me that the best way to incentivise openness and transparency is to embrace its opposite whole-heartedly. And while this contention might seem paradoxical on the face of it, it is a paradox that is resolved once the fabric of the net and the structures within it are understood as occupying discrete yet inter-dependent digital dimensions...



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Monday, March 07, 2005

what is digital identity?

Kim Cameron asks "what is digital identity?". He has a suggestion:
A digital identity is a set of claims made by one digital subject about itself or another digital subject.
As does PC magazine, quoting James Kobelius:
Digital identity refers to the set of digital information—including user IDs, passwords, access control lists, public-key certificates, and voiceprint patterns—that is associated with a particular individual.
My contribution in the comments:
I like the simpicity of your definition, Kim, but James Kobelius's definition scores highly in talking in terms of the network itself—the meaning of "digital information" could certainly include sets of claims, but not vice-versa. Attribution is the key, because data+attribution=identity. Also, surely it is the physical person or thing to which identity resolves, not a "digital subject".

How about this: "A digital identity is the set of digital information that is attributable to a person, community or resource"?
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just be ethical

Joel Makower writes about Nike's dilemma regarding their ethical policy with regard to their dubious record and their new sustainable footwear line, "Considered". From the conclusion:
It will be interesting to see how the world considers Considered -- whether the public (and the activist community in particular) sees the glass as half full (“Nike has taken some impressive steps, even though it has plenty of room for improvement.”) or half empty (“Nike has no business making environmental claims because it still has problems it hasn’t yet addressed.”)

The verdict, whichever way it goes, will be watched by scores of other leadership companies in similar straits -- companies that have good environmental stories to tell, despite their imperfections, and whose executives ponder the question, “How good is ‘good enough’?”
This is a similar issue to the one I wrote about with Costa and Fairtrade: Costa obviously want to do the right thing with Fairtrade to an extent, but not enough to dent their profit margins by going 100% Fairtrade. This leaves them in the position of not really being able to promote the Fairtrade option, because to do so would invite the question "why are you still selling non-ethical coffee then?".

And as these ethical toeholds appear in brands' policies, we customers surely become increasing empowered to accelerate the process by asking those questions, discussing the issues and making informed choices. Leadership comes in many forms.

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Sunday, March 06, 2005

coffee and IP

I've been making some encouraging discoveries and promising contacts on the ethical coffee trading front, and writing about it on the London Metrobloggers group blog...

Saturday, March 05, 2005

folded geometry

What is the geometry of a digital network where all nodes are, in principle, equidistant?

Starting with two nodes, we need just one spacial dimension:





If we add a third node then we have to fold the one-dimensional space into two dimensions to maintain equidistance:





Similarly, adding a fourth node necessitates folding the two-dimensional space into three dimensions to keep the distance between nodes equal:





If we add a fifth node we would have to fold three dimensions into four. But being human, we can't really conceptualise 4D space:


?????


And every time we add a new node, we need to add another dimension. So we need n-1 dimensions to represent a network of n equidistant nodes.

Hmm—no wonder it's so mind bending (folding?) to try to conceive of the structure of the internet! Yet it seems that this is the territory we must explore if we are to work out the ramifications of trust relationships within the social net...

topics: geometry networks identity

Fliker (it's not a typo)

Sound like a Flickr knockoff? Well no, actually is a rather amazing little web image browser. It must be a bit like how your life is said to flash before your eyes as you plunge to your death from a great height. Only with other people's memories.

Tuesday, March 01, 2005

Phase behaviour in human communities and the evolving social internet (abstract)

There is a dialectic interplay of structured and fluid qualities in human communities. This interplay exhibits phase behaviour: community systems "phase lock" into persistent structures; these structures break down into chaotic fluidity or "phase shift" with critical internal and/or environmental changes; out of the chaos of phase shift emerge new phase-locked structures. Community phase behaviour is analogous to that of certain mathematical and physical processes. It occurs at all scales, from family units to entire nations. It is ethically and morally neutral and is a quintessential aspect of human co-existence. I propose a fundamental principle for the facilitation of optimally healthy phase behaviour in human communities: individuals and communities must be free within the boundaries of a respect for the choices and integrity of others. The net transcends the physical world's limitations of place and resource, but it is not separate from the physical world. The net has already evolved a social dimension, but this remains fragmented by a lack of interoperability between the ontologies of its applications and technologies and by a disjuncture between structured and fluid approaches to data management. In understanding the potential and the limitations of current technologies we may discover ways forward for the social net.

essay: part one | part two |

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