Braga, M., Santos, P. M., Vinicius, M., Ferreira, S., Braga, M. D. M., Santos, P. M., … Dantas, M. A. R. (2017). A Model for the Application of Interactive Digital Television to Communities of Practice A Model for the Application of Interactive Digital Television to Communities of Practice, (February).


This study identified eleven software services which were essential to a Community of Practice and based on these services, a model for the application of iDTV was designed for Communities of Practice, enabling the development of a software platform for the environment Ginga in nthe Brazilian Interactive Digital TV Model.

Interactivity, portability and mobility are the main competitive advantages between iDTV and other existing systems (the American, European and Japenese systems)

The interactivity can be made available in 3 ways: locally, interactivity through a one-way return channel and interactivity through a bidirectional return channel

Its interactivity is designed to meet three types of users: (1) Developers, (2) Producers of content for iDTV and (3) viewers

Most software applications available to CoPs are based on the internet but in Brazil in 2008, only 17% of household had access to the internet.

The 11 services which were considered essential to a platform for a CoP:

  1. e-mail
  2. discussion boards (Asynchronous Interactions)
  3. slide/video presentation
  4. presence indicator
  5. chats (Synchronous Interactions)
  6. Community Entry Page
  7. Search (Individual Participation)
  8. Security Management
  9. Schedule (Community Cultivating)
  10. Library/File Management
  11. Document Repository (Publication)

The services are selected by users through the remote control of Set-Top Box (STB). The users can also make use of a wireless keyboard that communiates with the STB.

Limiting factors: many features present in all computers are not available to all users of iDTV – the resources of input and output (mouse and keyboard) and the size and resolution of the monitor where the data is diplayed amongst others.

Communities of Practice:

“…groups of people who have common interests, problems to be solved or a passion for a subject and want to deepen their knowledge and experiences in these areas, interacting with each other regularly…”

“…in many organisations, Communities of Practice put together, periodically, groups of people to share knowledge in a particular domain of human knowledge..”

“…the concept of Communities of Practice derived from studies by Jean Lave and Etienne Wenger on situated learning. The main activity of a learning as a situated activity is legitimate peripheral participation that deals with the relationship between newcomers and veterans of a particular profession. These interactions among members generate identity, artifacts and knowledge exchanges, enriching all particicpants…”

“…According to Hara, Communities of Practice are informal collaborative networks that give support to the practitioners of a profession in its efforts to develop a shared understanding and in their commitment to the building of a body of knowledge relevant to their work…”

“..ICT represents a practical approach for creating and managing knowledge in organisations..”