Content repositories: Difference between revisions
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=== TV |
=== TV |
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:Educational shows (streamed): science, history, quiz, art/music, book review, story shows |
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:Bookreading / chapter a day audio |
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:News program (streamed) |
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:Audio streams (ogg) |
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=== Audio and videocasts === |
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:Podcast streams |
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:Cache requests |
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=== News === |
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:Local video |
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:BBC, M6 video |
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:UN news audio (en, es) |
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:International news |
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:International papers: IHT, LeMonde, El Mercurio |
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:Weather videos (short, regular) |
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=== Books and texts === |
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:ebooks, full format |
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:plain text ebooks |
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:reports and papers |
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=== Interactive courseware === |
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:OCW collections, updates |
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:Science: biology, physics, chemistry |
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:Mathematics |
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:Music, Literature, History, Health |
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:Training: Sustainable ag, technology, repair, teaching, journalism |
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=== Wikipedia & sister projects === |
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:Snapshots: simple, science, geography, languages, color, sound, environment, art, music |
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:Regular updates |
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:Wikibooks: wikijunior, fhsst [updated] |
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*[http://www.howtopedia.org www.howtopedia.org] a collaborative library for practical knowledge and simple technologies. [[howtopedia]] has a simple interface and clear content in English, French, Spanish. |
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<center> [[Image:Logo howtopedia.gif|300px]] </center> |
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=== Web and blogs === |
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:Newsfeeds: rss from blogs, services, sites |
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:Web cache: individual and project-level requests |
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=== Mail, chat, file transfers === |
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:Sharing mail and chat messages |
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:File uploads and repositories, local / school / global |
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=== Daily updates === |
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== Repository mirrors == |
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We will have regional mirrors in every country and region where OLPC is distributed en masse. |
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Materials to be included in the mirrors include: |
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* a full Fedora repository |
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** developoment tools used by OLPC subteams in constructing builds |
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** cross-compilation toolchains used by various contributors |
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* a Free content repository |
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** Wikipedia snapshots [2-20GB], archive.org & gutenberg texts [2-100GB] |
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** Wikimedia Commons [1M resources, ~1TB] |
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** Other media resources (Jamendo, archive.org; size TBD) |
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* Collections made specifically for OLPC |
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** A collection sized for the XO |
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** Local collections sized for the XO and for school servers, developed in-country |
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** Collections sized for school servers (larger sets of data, maps, video, texts, and software) |
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* Software suitable for OLPC schools |
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** Packages for FC7 school servers |
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** Extensions and additions for existing tools and services in the OLPC network |
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=== Mirror sites === |
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In general, the Internet Archive is considering launching local and regional mirrors of their collections. We will want a larger mirror that can host a dozen TB of data for each region, connected to multiple peers; and a number of smaller mirrors in each country. |
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Details on potential mirror hosts: |
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'''South America''': |
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* Brasil -- Google, AMD. See also Rodrigo M. |
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* Uruguay -- Google and GMail |
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'''Africa''' |
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* Nigeria -- |
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* Ethiopia -- |
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'''Asia''' |
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* Nepal -- see [[OLPC Nepal]] |
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* Taiwan? |
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== Large archives == |
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* Free media collections : [http://www.flickr.com/ Flickr], [http://commons.wikimedia.org/ Wikimedia Commons] |
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* Music : [http://www.freesound.org Freesound], [http://reemusic.freeculture.org/ Free Music Project] |
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* Texts: [[Project Gutenberg]], [http://scholar.google.com/ Google Scholar], [http://www.wikipedia.org/ Wikipedia]; |
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* Stories: [http://www.childrenslibrary.org ICDL], [http://schoollibrary.com/OLPC_Collection.htm other children's pdfs] |
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* Language: [http://www.wiktionaryz.org/ WiktionaryZ / OmegaWiki], Dicologos and [http://www.dicts.info/ Universal dictionary system] |
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* Reference collections: the [http://humaninfo.org/ Humanity Development Library], [http://www.widernet.org/digitallibrary/ eGranary] |
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Small subsets will need to be culled for pre-installation of choice material on the laptops themselves; larger subsets will need curating to pick out material suitable for the laptop's audiences; classification and categorization; and checks to avoid unbalance or repetition. Most content needs internationalization. |
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== Specific projects and collections == |
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* [[Avallain]] literacy and basic skills learning |
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* A [http://www.worlddigitallibrary.org/project/english/index.html World Digital Library] portal |
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* [http://en.wikibooks.org/wiki/Wikijunior Wikijunior], [http://www.wikihow.com/Select-wikiHow-Articles-for-the-One-Laptop-Per-Child-Association WikiHow] |
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* [[Our Stories]] project, with Story Corps, UNICEF, and Google - capturing local stories |
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* Book scanning and digitization: |
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*: Children's picturebooks, with support from ICDL |
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*: Public domain materials, with archival support from the Internet Archive |
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*: Other local cultural materials, with support from the World Digital Library |
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* [http://wikieducator.org Wikieducator] tutorials |
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* OER subcollections from [http://curriki.org Curriki] and [http://oercommons.org OER Commons] |
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* [[Health]] collections from EOW, WHO, and others |
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== Proposed implementation == |
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The head page for a curriculum or cohesive set of content is just an HTML page. It can have any text interspersed in it. The document should have a tag in the header: <tt><link rel="olpc.content_bundle" href="sitemap.xml">.</tt> |
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The sitemap is a [https://www.google.com/webmasters/tools/docs/en/protocol.html Google Sitemap XML file], a simple enumeration of a set of URLs. Unlike Google's restrictions, the URLs do not have to live "on" the site where the sitemap is located -- they may cross domains. Embedded content (like images) do not have to be enumerated, but any linked content should be enumerated (for instance, if you link to a movie file from one of the documents). |
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Note that this head document can be constructed by anyone, and need not be hosted where the original material is located. Multiple head documents can refer to the same content, representing multiple versions of the curriculum, different target audiences, etc. |
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A document may contain multiple <tt><link></tt> tags, representing an aggregation of curricula. For instance, a teacher version of a curriculum would include the student version (the sitemap from that version) plus another sitemap enumerating all the documents intended just for the teacher. |
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The head page represents the collection. It may contain any text, and no special restrictions or interpretation is made of that text. The browser will detect this link tag, and when the student visits the page will offer to pre-fetch the entirety of the content. The pre-fetched content will appear to be at the same URL as it was originally, but will be served from the local cache. Additionally the school server may use this to cache data. |
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The student may manage their pre-fetched content, which takes up local space and may need to be purged. The head page and the head page's title represents the content in these situations. |
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The content may link to other documents not enumerated in the sitemap. These may not be available, since they have not been prefetched. At that time the browser should offer to fetch the content when the laptop is able to find that content, and optionally notify the student of the availability of the content. The laptop may seek that content on other nearby laptops, the school server, or the wider internet. The content will be pre-fetched at that time. An option may be provided to do deeper pre-fetching (e.g., fetching down one line, or down two links into the content). |
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=== Use cases === |
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Conceptually, a content repository could be used in a variety of ways: to publish and share new material, to collaborate on material development over time (synchronizing online and offline contributions to a shared document or project), to search for and download material, to distribute and cache from large collections that can't be contained on one machine or at one school. For more, see the ''' [[Talk:Content repository#Extended use cases|talk page]]. |
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=== Content rating === |
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Simple ratings can be done |
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* via a matrix of subject areas and reading levels, |
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* via a [[content stamping|group rating system]] where anyone can affiliate with a rating group and apply their shared guidelines and ratings to materials |
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[[Category:Developers]] |
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[[Category:Resources]] |
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[[Category:Pedagogical ideas]] |
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[[Category:Content]] |
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[[Category:Content Repository]] |
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Revision as of 15:43, 18 September 2007
| Philosophy |
| Creating Content |
| Curating Content |
| Educational ideas |
| Activity ideas |
| Software ideas |
| Hardware ideas |
| Help Translating |
| Library |
| Content network |
| Repositories |
| Collections |
| modify |
By distributing laptops and school servers with learning materials on them, and a global index of content that can be used with no modification on the laptops, OLPC is developing a network of digital libraries and collections in a number of languages.
(see also: content ideas, sharing your content with OLPC, and content rating).
Potential materials
for a breakdown with size estimates, see Content repository/sizes
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=== TV |