CHI 2006 Special Interest Group

Mobile iTV:new challenges for the design of pervasive multimedia systems

Dr. Anxo Cereijo RoibàsDavid Geerts

Agenda

Presentation of the SIG goals and topics (10 mins) Introduction of participants (10 mins) Interactive debate with participants on the research topics introduced (50 mins) Summary of the topics and discussion on future actions and how to create a common background in this area among those interested (20 mins)

SIG topics

Novel sociability issues for cross-media applicationsIncoming usability challenges and future interaction design issues such as new interfaces, interaction modalities and forms of smart contentNew paradigms in context awareness in intelligent environments beyond the traditional taxonomy of context Controversial evolutions and trends such as a potential 'utterly controlled society’ and cross-media applications in nano and biotechnologyOriginal contributions from diverse disciplines (art, design, sociology, anthropology, biology, etc)

What is Mobile & Pervasive iTV?

Users’ adoption of powerful handhelds with multimedia features, together with an increasing interoperability between platforms, is resulting in expanding the iTV consumption beyond the domestic context.

We can define this convergence of multimedia systems in different platforms as ‘pervasive TV’.

Technological trendsdiffusion of powerful handhelds with multimedia features

increasing interoperability between platforms, communications are going pervasive.

swap from one-to-one to one-to-many connectivity (network, Bluetooth, infrared…)

development of context-aware applications

evolution towards novel forms of content

Exploration of advanced ways of interaction.

Mobile iTV Workshop results:New challenges in Mobile iTV

Exploring new genres Self-authored content Smart and highly interactive content Co-creation and participation

Sociability Supporting social interaction Beyond usability

Novel interaction paradigms Immersive environments Gestures …

Personal and social context awareness Intelligent environments

Convergence Work – home – on the move PC – TV – Mobile – In Car Navigator – new devices (wearables,

home appliances - …)

SIG discussion notes

Topics raised by participants

What is (interactive) television?Will interactivity on mobile phones be a success?Content ownership / co-creationPersonalization / context awarenessCultural differencesChange in types of contentInternet broadcastOlder people and iTV interfacesCollaborative content creation/consumptionBlurring between games and TVSocial control / sociability

What is (interactive) television?People don’t want to only watch broadcasts, but also self-authored content, share with communitiesTv is just the display with computer behind it – broadcast is old-fashioned, one-wayTechnical formats / content (MPEG2: streaming – MPEG4: real interactivity at local side)Broadcast as transport mechanism / IP on all kinds of devicesTV has a powerful connotation: good quality – easy to use – no productivity – lean backNo connection problems, reliable, no computerTV traditionally huge audiences / iTV has niche audiences, users interactive tv services (voting, vod, …) – content/service providers instead of broadcastersMobile iTV services instead of Mobile iTVThe word television is a strength – lowers the barrier for older people and to try out something newMobile – what is it on a mobile device? Inherently different than in the home?Passivity – not activity: conflict. Do we make television interactive? Strong desire not to interact with television.5% interactivity / 95% not – not everyone has to be activeContestants choose suitcase with money – people at home can vote with mobile phones – 8 million viewersSame information on mobile when you don’t have a tvWhole production process – you look at the content that others have madeAdvertisers have a stake in this as wellProgram via the pc remotely, when you get home you can lean backInteractivity as social interactivity, not UI interactivity

Personalization / context awareness

Making a video on a specific location at specific time link this with advertisementSmarter mobile devices – like TiVO / automatic volume reduction / …More memory and power when watching video / traffic cams / … DVB-HSmall screen, want to watch mobile television? Lots of technological solutions already for problems raised – costs money.Type of content, size of display, … - lousy content is the problemNot watching movies, but killing time – different end-user needsAlso getting information when something’s going on / real-time events – videos are made on the spot and distributed – bottom-up

Cultural differences

Korea – attached to mobile devices, want tv-content – tv in the carMaybe not appropriate in North-America, but it is in AsiaEven difference between Spain and UKMajority of people watch mobile tv at home (e.g. bathroom) – take it shopping to keep children quiet – at the workplace lot of different situations: listen to results of trialsShort span across different cultures?Personal space when commuting – in western countries, don’t want to interact with other peopleFrom big tvs to small devices culturally dependent? – but SMS was not only big success in Asia, also in Europe and AmericaMobile phone success not predictedAbilities of mobile phones for making video will change the industryAlso different user groups e.g. adults vs. ChildrenGeneration: going out, playing mobile games, small devicesNo standard navigation paradigm for mobile interactive television

The future: disappearing interfaces – media wherever you are in appropriate fashion, based on devices

Change in types of contentWho creates the content, what kind of screen, what kind of users?Smaller segments for shorter attention timesNew services and applications – when a goal is made, a short clip is sent to mobile phoneMotivation is important – even if it is less than optimalDo I want television on my mobile? – information, entertainment? Different kinds of content at different timesTV consumption is changing – possible that children will use this in the schoolyardSupport in mobile phone for tv-creationTiVO services on the mobile phone – get information immediately – when and how i want itVideo blogs – broadcast site beginning of a new culture from podcasts and blogs to videoFrom broadcast of traditional television to personal vlogs and shared editing 1 to 1 1 to many?DVB-H - media FLONew paradigms in video sharing and creation – revenue generation for broadcasters? business models for personal video sharing?iTV in the states cable providers > youtube, making content themselves / time shifting / TiVO – cable providers are roadblock / resistance to great ideasSome content providers put content on the web – with commercialsVideo snippets in Mobiles include ads – using traditional revenue modelsThings are changing, they have tom come up with new business models – people are skipping! Preventing fast forwardingNew ad formats to captivate people? But failed trials ten years ago? Now more interactivity, more mobility changed.Targeted advertisement on specialty channels more direct advertisement

Workshop and SIG website

For SIG and Workshop results, see:http://soc.kuleuven.be/com/mediac/chi2006workshop/or

http://tinyurl.com/pe5h5/