ISO IEC TR 20821 pdf download

ISO IEC TR 20821 pdf download.Information technology — Learning, education and training — Learning environment components for automated contents adaptation
1 Scope
This document specifies two methods for adaptive content automation. Firstly, a learning environment profile for the expression of device and learning environment information required for mobile learning providers of both content and services, and for effective use of such services. Secondly, a grouping method is specified so that similar learning environment profiles can be bound into one and expressed collectively.
2 Normative references
There are no normative references in this document.
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply. ISO and IEC maintain terminological databases for use in standardization at the following addresses: — IEC Electropedia: available at http: //www .electropedia .org/ — ISO Online browsing platform: available at https: //www .iso .org/obp 3.1 attribute item that describes data elements that a resource description framework (RDF) contains Note 1 to entry: Each attribute is related to a value or resource. 3.2 component element that classifies CPI (3.3) at a high level EXAMPLE UAProf, HardwarePlatform, SoftwarePlatform, NetworkCharacteristics, WAPCharacteristics, and BrowserUA, CommonCharacteristics, HardwarePlatform, SoftwarePlatform, NetworkCharacteristics, UserAgent and UsageEnvironment. 3.3 CPI capabilities and preference information item that contains the function of device, operation and network environments, student information, etc. 3.4 profile instance by schema (3.8) that has all attributes (3.1) of a device, network and learning environment Note 1 to entry: This profile will have all vocabularies available in the schema (3.1).3.5 profile? repository repository where the profiles (3.4) are collected and stored Note 1 to entry: A profile is usually saved in a resource description framework (RDF) file. 3.6 property characteristic expressing the capability of the resource Note 1 to entry: Resources may have many properties. 3.7 resource objective or element expressed in RDF format Note 1 to entry: Resource description framework (RDF) resource is usually expressed in uniform resource identifier (URI). 3.8 schema RDF format vocabulary (3.11) created to express the resource (3.7) Note 1 to entry: Schema contains only meaning (structural) information of REF data model, and does not have any values. 3.9 user individual (student or teacher) or a group that acts as an individual Note 1 to entry: A user will authenticate his or her identity in order to access resources or content from the server. 3.10 user agent browser or program that operates in users’ (3.9) devices Note 1 to entry: In the mobile learning environment, user may express CPI (3.3) anywhere, anytime, by using various user agents. 3.11 vocabulary set of terms used to express CPI (3.3) Note 1 to entry: Vocabulary is related to schema (3.8). Note 2 to entry: Profile vocabulary for mobile learning devices include device functions and network characteristics.
4 Learning environment profile
4.1 Components 4.1.1 Common characteristics (CommonCharacteristics) A set of common attributes related to users’ devices. Each device has, common attributes (the attributes commonly needed to select a content), such as character set, language, local time, supported content type, etc.4.1.2 Hardware platform (HardwarePlatform) A set of hardware attributes related to the users’ devices. Devices use various hardware and support various functions. To accommodate such variety, Hardware will describe functions that can be supported according to the characteristics of hardware unique to the device. Hardware platform includes type of device, kind of model, etc. 4.1.3 Software platform (SoftwarePlatform) Software platform describes the software components supported by the device. Software platform includes functions the installed operating system supports and other characteristics such as supported video and audio formats, etc. 4.1.4 Network characteristics (NetworkCharacteristics) A set of attributes related to network a user uses. A user using a device may use various networks, and depending on the characteristics of network, availability of functions may be limited. Network characteristics include mobile phone number, information on the network connected to and communication protocol. 4.1.5 User agent (UserAgent) A set of attributes related to HTML (Hyper-Text Markup Language) browser application. There are many browsers, such as Internet Explorer, Firefox, Google Chrome, etc. Each browser may support different functions. User agent includes type of browser and whether ActiveX, Java applet and Java script are supported.