JP2003067664A - Hypermedia distribution device, hypermedia display terminal, hypermedia processing method, hypermedia processing program and recording medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hypermedia distribution device capable of defining relations among constituting elements constituting hypermedia. SOLUTION: The hypermedia distribution device distributing the hypermedia constituted of main contents and meta data attached to the contents to a display terminal is provided with a relating meta data repository defining the relations among the constituting elements constituting the hypermedia, a meta data preparation means receiving information specifying an object to attach the meta data and the contents of the meta data from the display terminal and preparing a new meta data instance inside the relating meta data repository, and a meta data display means accessing the relating meta data repository corresponding to a request of the display terminal, reading the meta data and outputting the result to the display terminal in synchronism with the main contents.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hypermedia distribution device, a hypermedia display terminal, and a hypermedia distribution device, which are capable of defining relationships between constituent elements that make up hypermedia.
The present invention relates to a hypermedia processing method, a hypermedia processing program, and a recording medium.

[0002]

2. Description of the Related Art As a network is broadened, a system for distributing various contents is shifting from HTML document distribution to moving picture distribution. Up to now, accompanying information such as annotation information (this is referred to as moving image metadata) has been distributed to a reference person at the same time as distribution of a moving image. For example, the profile of a person is displayed when the person displayed in the image is clicked with a pointing device. The technique of attaching this additional information could be attached only for each scene specified by the coordinate region / time region of the image, but as the object encoding technique was established with the progress of the moving image compression technique, the object on the image ( It has become possible to attach attachments to individual units (persons, objects, etc.). This technology is called moving image metadata technology. By using this technology, in a Web education system (WBT: Web Based Training), it should be applied to a means for giving learning auxiliary data for a learner referring to a moving image teaching material at a proper timing to deepen understanding. It can be expected that the effect in video education can be further enhanced.

[0003]

By the way, when the metadata is attached to the screen referred to by the user, the metadata is attached to each moving image, and this metadata is used as the position information in the two-dimensional coordinate area. And data having a time domain. When attaching to an object (person or object) in a video, the metadata is attached while repeating the operation of designating the area displaying the object.

However, when a moving image with metadata attached to an educational material is to be used, it is required that the attachment pattern of the metadata that must be attached to the moving image is complicated. There is a problem that the attached technology is insufficient. For example, when teaching the generation of compounds in a chemistry class, when the reagent A and the reagent C are mixed first in a scene where the test tubes containing the reagent A, the reagent B, and the reagent C are displayed, a dangerous chemical reaction occurs. However, there is a problem that such information cannot be guided in the teaching material only by the existing technology, because such information is incidental information about the relationship between objects on different images.

The present invention has been made in view of the above circumstances, and is a hypermedia distribution apparatus capable of defining the relationship between the constituent elements of hypermedia,
It is an object to provide a hypermedia display terminal, a hypermedia processing method, a hypermedia processing program, and a recording medium.

[0006]

The invention according to claim 1 is a hypermedia distribution device for distributing a hypermedia composed of main contents and metadata attached to the contents to a display terminal. Then, the hypermedia distribution device provides a related metadata repository that defines a relationship between components that form the hypermedia, information that specifies a target to which metadata is attached from the display terminal, and contents of the metadata. A metadata creation unit that receives and creates a new metadata instance in the related metadata repository, and accesses the related metadata repository in response to a request from the display terminal to read the metadata, and the result is mainly. And a metadata display unit for outputting to the display terminal in synchronization with the content. It is characterized in.

According to a second aspect of the present invention, the hypermedia distribution device responds to a request from the display terminal.
It is characterized by further comprising metadata updating / deleting means for updating or deleting the metadata defined in the related metadata repository.

In the invention according to claim 3, in the related metadata repository, the relation between the scene of the main content and the objects existing on the content, and the relation between the scene and the scene of the main content. Of the relationships between the objects existing on the content and the objects, at least one relationship is defined.

According to a fourth aspect of the present invention, there is provided a hypermedia display terminal for displaying hypermedia distributed from a hypermedia distribution device, wherein the hypermedia display terminal is a meta-media terminal for the hypermedia distribution device. Create data, search, edit search results
It is characterized by further comprising metadata management means for requesting deletion and content display means for displaying the content attached with the metadata distributed from the hypermedia distribution device.

According to a fifth aspect of the present invention, there is provided a hypermedia processing method for delivering to a display terminal a hypermedia composed of a main content and metadata attached to the content. The processing method receives information for specifying a target to which metadata is attached and the content of the metadata from the display terminal, and creates new metadata in a related metadata repository that defines a relationship between the constituent elements of the hypermedia. A metadata creation process of creating an instance and accessing the related metadata repository in response to a request from the display terminal to read the metadata, and outputting the result to the display terminal in synchronization with the main content. And a metadata display step.

According to a sixth aspect of the present invention, in the hypermedia processing method, in response to a request from the display terminal,
The method further comprises a metadata updating / deleting process of updating or deleting the metadata defined in the related metadata repository.

According to a seventh aspect of the present invention, in the related metadata repository, the relation between the scene of the main content and the objects existing on the content, and the relation between the scene and the scene of the main content. Of the relationships between the objects existing on the content and the objects, at least one relationship is defined.

According to an eighth aspect of the present invention, there is provided a hypermedia processing method for displaying hypermedia distributed from a hypermedia distribution apparatus, wherein the hypermedia processing method is a meta-data processing method for the hypermedia distribution apparatus. Create data, search, edit search results
The method is characterized by including a metadata management step of requesting deletion and a content display step of displaying content attached with the metadata distributed from the hypermedia distribution device.

According to a ninth aspect of the present invention, there is provided a hypermedia processing program for delivering, to a display terminal, a hypermedia composed of a main content and metadata attached to the content. The processing program receives, from the display terminal, information identifying a target to which the metadata is attached and the content of the metadata, and creates new metadata in the associated metadata repository that defines the relationship between the constituent elements of the hypermedia. Metadata creation processing for creating an instance, accessing the related metadata repository in response to a request from the display terminal to read the metadata, and outputting the result to the display terminal in synchronization with the main content. It is characterized in that the computer is caused to perform the metadata display processing.

According to a tenth aspect of the present invention, the hypermedia processing program updates or deletes metadata defined in the related metadata repository in response to a request from the display terminal. The computer is characterized in that the update / deletion process is further performed.

According to an eleventh aspect of the present invention, in the related metadata repository, the relationship between the scene of the main content and the objects existing on the content, and the relationship between the scene and the scene of the main content. Of the relationships between the objects existing on the content and the objects, at least one relationship is defined.

According to a twelfth aspect of the present invention, there is provided a hypermedia processing program for displaying hypermedia distributed from a hypermedia distribution device, wherein the hypermedia processing program is a meta-data for the hypermedia distribution device. A computer is provided with a metadata management process for creating data, a search, a request for editing / deleting a search result, and a content display process for displaying a content attached with the metadata distributed from the hypermedia distribution device. It is characterized by being performed.

The invention according to a thirteenth aspect is characterized in that the hypermedia processing program according to any one of the ninth to twelfth aspects is recorded.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A hypermedia distribution device and a hypermedia display terminal according to an embodiment of the present invention will be described below with reference to the drawings. Here, hypermedia distribution device and hypermedia display terminal are
BT: Web Based Training will be described. The hypermedia referred to here is a medium in which other data is associated with the main data, and when the user who refers to this data causes an event such as a mouse click, the attached data is displayed. That is. In the following description, main data will be referred to as teaching material data, and metadata attached to this teaching material data will be referred to as learning auxiliary data.

FIG. 1 is a block diagram showing the configuration of the embodiment. In this figure, reference numeral 1 is a hypermedia distribution device (hereinafter referred to as a distribution device) configured by a computer server. Reference numeral 2 is a hypermedia display terminal (hereinafter, referred to as a display terminal) including a personal computer or the like. Reference numeral 11 is a teaching material database (hereinafter, teaching material DB in which image data, which is teaching material for education, is stored.
It is also referred to as a teaching material DB in the drawings).
Reference numeral 12 is a video output unit that reads out and outputs a video that is the teaching material data stored in the teaching material DB 11. Reference numeral 13 is a learning assistance database (hereinafter, learning assistance D) in which learning assistance data for supplementing the teaching material data is stored.
It is referred to as B and is also shown as a learning assistance DB in the drawing). Reference numeral 14 is a learning assistance D in response to a request from the outside.
The learning auxiliary data input / output unit inputs the learning auxiliary data to B13 or reads the learning auxiliary data from the learning auxiliary DB 13 and outputs the learning auxiliary data to the outside.

Reference numeral 15 denotes a display management database (hereinafter, referred to as a display management DB, also referred to as a display management DB in the drawings) that stores display management data that defines at what timing the learning auxiliary data is displayed. Is.
Reference numeral 16 is a display management DB 15 in response to a request from the outside.
Enter learning assistance data for, or display management D
A display management data input / output unit that reads the display management data from B15 and outputs it to the outside. Reference numeral 17 is a display style database (hereinafter, referred to as a display style DB, which is also referred to as a display style DB in the drawings) that stores display style data that defines how to display the learning assistance data. Reference numeral 18 is a display style data input / output unit that inputs display style data to the display style DB 17 in response to a request from the outside, or reads the display style data from the display style DB 17 and outputs the data to the outside. Code 19
Is an information distribution control unit that controls the operations of the video output unit 12, the learning auxiliary data input / output unit 14, the display management data input / output unit 16, and the display style data input / output unit 18. Code 2
Reference numeral 0 is a communication unit that communicates with the hypermedia display terminal 2 via the network N.

Reference numeral 21 is a communication unit for communicating with the hypermedia distribution device 1 via the network N. Reference numeral 22 is a video output unit 12, a learning auxiliary data input / output unit 1
4 is a synchronization processing unit that synchronizes the data output from each of the display management data input / output unit 16 and the display format data input / output unit 18. Reference numeral 23 is a display data processing unit that processes data for displaying the learning auxiliary data based on the display management data and the display style data. Reference numeral 24
Is a display data reproducing unit for reproducing the display data processed by the display data processing unit 23. Reference numeral 25 is C
This is a display unit composed of an RT. Reference numeral 26 is an input unit including a keyboard and a mouse. Reference numeral 27 is
The display control unit controls the synchronization processing unit 22 based on the input from the input unit 26. Although FIG. 1 illustrates an example in which two hypermedia display terminals 2 are connected to the network N, three or more hypermedia display terminals 2 may be connected.

Next, the table structure of each database and the stored data will be described with reference to FIGS. First, the teaching material DB 11 will be described. Teaching material DB
At least one teaching material data is stored in 11, and an identification number is given to each teaching material data. The teaching material data consists of video data for remote education,
This video data shows a pattern of a lesson for a given education, and it is a moving image (captured by the teacher's movements), a still image (corresponding to a textbook, a memo for supplementary explanation). Etc.) and voice (voice of teacher).

Next, the learning auxiliary DB 13 will be described. Learning auxiliary data is a memo writing in a textbook that is usually done in the field of education when adding supplementary explanation to the lesson content in the video of the teaching material or learning while watching the teaching material data. , This is data for writing notes on class contents. There are three types of this learning assistance data: "text", "image", and "voice". The “text” is character information such as supplementary explanation and memo writing.
The “image” is a moving image or a still image for supplementing the teaching material data, and is information such as detailed diagrams and graphs. The "voice" is voice information such as a sound generated during the experiment in order to supplement the teaching material data. In the learning auxiliary DB 13, the learning auxiliary data is classified into data types, and identification numbers are given to the respective data types and stored.

Next, the display style DB 17 will be described. The display style data is data that defines a display style (here, utterance is included in the display) for each data type of the learning auxiliary data. The display style for displaying the text is the size, display position, color of the window when a new window is opened on the screen of the display unit 25,
The pattern and background color are defined. The display style when displaying an image defines the size and display position of a window when a new window is opened on the screen of the display unit 25. The volume is defined as a display style when displaying (speaking) voice.
In the display style DB 17, each identification number of the defined display style data is given and stored.

Next, the display management DB 15 will be described. The display management data is data for managing the timing of displaying the learning auxiliary data and the display style. The display management DB 15 includes fields of “identification number”, “start condition”, “end condition”, “screen area”, “teaching material identification number”, “learning auxiliary data identification number”, and “display style identification number”. The “starting condition” is a condition for starting the display of the learning auxiliary data, and the elapsed time from the beginning of the teaching material data and the like are defined. The "end condition" is a condition for ending the display of the learning auxiliary data being displayed,
Similar to the start condition, the elapsed time and the like are defined. The “screen area” is for associating the area of the teaching material data display screen with the learning auxiliary data to be displayed, and defines the area of the teaching material data on the screen. The “teaching material identification number” is an identification number defined in the teaching material DB 11. The “learning auxiliary data identification number” is an identification number defined in the learning auxiliary DB 13. The “display style identification number” is an identification number defined in the display style DB 17. Figure 5
The display management data whose identification number is "1" is the learning auxiliary data whose identification number is "1" when the identification number of the teaching material data is "1", and the identification number is "1". Based on the display format data, change from "XXXXX" to "XX
It means to display in the area of "□□□□" until "○○".

Here, "start condition", "end condition",
Details of the “screen area” will be described. The condition for displaying the learning auxiliary data is when the following condition is satisfied. (1) Always displayed in the area defined in the screen area from the time when the predetermined elapsed time defined in the start condition elapses until the predetermined elapsed time defined in the end condition elapses To do. (2) When the mouse is clicked in the area defined in the screen area, it is always displayed in this screen area. At this time, the start condition and the end condition are ignored.
Further, when the mouse cursor is within the area where the learning auxiliary data exists, a display for notifying that the learning auxiliary data exists in the corresponding area is displayed. (3) It is a combination of (1) and (2), and only while the mouse is clicked within a predetermined area within a predetermined time,
indicate. (4) Modifications of (1), (2), and (3), and when the learning auxiliary data is a voice or a moving image, the end condition is until the reproduction of the learning auxiliary data ends.

Next, the operation of the apparatus shown in FIG. 1 will be described.
First, the operation of displaying the already created teaching material data will be described. First, a distribution request for teaching material data is input from the input unit 26. This distribution request is notified to the information distribution control unit 19 via the communication unit 21, the network N, and the communication unit 20. In response to this, the information distribution control unit 19 sends the list data of the teaching material to the display terminal 2 when there are a plurality of teaching material data. The list data is received by the display control unit 27, and the list contents are displayed on the display unit 25.
Then, the desired teaching material data is selected, and the selection result is input from the input unit 26. The information distribution control unit 19 is notified of the selection result of the teaching material data.

Next, the information distribution control unit 19 instructs the video output unit 12 to output the selected teaching material data, and at the same time, also to the display management data input / output unit 16.
Instruct to output the display management data related to the selected teaching material data. In response to this, the display management data input / output unit 16 reads out all the display management data (all having the same learning material identification number) related to the selected learning material data, and transmits the display management data to the display terminal 2 that made the distribution request. Then, the video output unit 12 reads the selected teaching material data from the beginning and sequentially transmits it to the display terminal 2.

The display management data transmitted from the distribution apparatus 1 is received by the display control unit 27 via the communication unit 21 and is held inside. On the other hand, the teaching material data is the communication unit 2
1 to the synchronization processing unit 22. The display control unit 27 then displays the display management data stored therein,
The teaching material data sent to the synchronization processing unit 22 and the input unit 2
The state of No. 6 is monitored and waits until the display condition of the learning auxiliary data is met.

Next, when the display condition of the learning auxiliary data is met, the display control unit 27 distributes the data including the learning auxiliary data identification number and the display style identification number defined in the display management data which meets the condition. The request is transmitted to the distribution device 1 via the communication unit 21. This data distribution request is received by the information distribution control unit 19. Then, the information distribution control unit 19 notifies the learning auxiliary data identification number notified from the display terminal 2 to the learning auxiliary data input / output unit 14 and also outputs the learning auxiliary data corresponding to the notified learning auxiliary data identification number. Instruct to read and output. Further, the information distribution control unit 19 notifies the display format data identification number notified from the display terminal 2 to the display format data input / output unit 18, and also displays the display format data corresponding to the notified display format data identification number. Instruct to read and output.

Next, the learning auxiliary data and the display style data output from the learning auxiliary data input / output unit 14 and the display style data input / output unit 18 are displayed on the display terminal 2 via the communication unit 20.
Sent to. Then, the display control unit 27 outputs the learning auxiliary data to the synchronization processing unit 22, and the display style data to the display processing unit 23. In response to this, the synchronization processing unit 22
Outputs the learning auxiliary data to the teaching material data to the display data processing unit 23. Further, the display data processing unit 23 receives the teaching material data to which the learning auxiliary data is attached, processes the learning auxiliary data based on the display style data received from the display control unit 27, and displays the display data reproducing unit 2
Output to 4. The display data reproducing unit 24 outputs the received teaching material data to the display unit 25, so that the teaching material data to which the learning auxiliary data is attached is displayed on the display unit 25. Learning is performed by repeating this processing until the teaching material data is completed.

FIG. 6 shows an example of a screen displayed on the display unit 25. In FIG. 6, reference numeral A is a window displaying teaching material data. Reference symbols B and C are windows for displaying learning auxiliary data. In this way, it is possible to refer to the learning auxiliary data such as the supplementary explanation, if necessary.

Next, the operation of newly adding learning auxiliary data will be described. First, the student
Play the teaching material data. Then, when the learning auxiliary data is desired to be added, a predetermined operation is performed from the input unit 26, and the process shifts to the learning auxiliary data addition process. In response to this,
The information distribution control unit 19 stops the distribution of the teaching material data and transmits a screen for adding data to the display terminal 2. This screen is received by the display control unit 27 and displayed on the display unit 25. An example of the input screen displayed here is shown in FIG. Here, in addition to inputting the learning auxiliary data, the conditions (start condition, end condition, and screen area) for displaying the learning auxiliary data and the display mode (color, shape, etc.) are input.

Next, the data input on the input screen is transmitted to the distribution apparatus 1 via the communication unit 21. In response to this, the information distribution control unit 19 registers the data transmitted from the display terminal 2 in each database. As a result, the teaching material data is reproduced again, and the newly added learning auxiliary data is displayed when the predetermined condition is satisfied.

Next, the operation of editing the results obtained by searching the already registered learning auxiliary data will be described. First, the student performs a predetermined operation from the input unit 26 and displays the input screen shown in FIG. 7 as when adding new learning auxiliary data. Then, a search condition for searching for desired learning auxiliary data is input. This search condition is transmitted to the distribution device 1 via the communication unit 21.
This search condition is received by the information distribution control unit 19 and notified to the learning auxiliary data input / output unit 14. If the learning auxiliary data matching the search condition exists in the database, the learning auxiliary data input / output unit 14 reads the learning auxiliary data and transmits it to the display terminal 2. The display terminal 2 edits the read learning auxiliary data and then returns it to the distribution device 1. The information distribution control unit 19 registers the edited learning auxiliary data in the learning auxiliary DB 13 as new learning auxiliary data. The edited learning auxiliary data may be newly registered or may be overwritten on the data read at the time of search. Furthermore, the search target may include display management data and display style data.

As described above, since the student can add the learning assistance committee data of arbitrary content on the display terminal side at any timing, the teaching material data can be effectively used, and as a result, the learning assistant data can be effectively used. It becomes possible to carry out learning.

Next, another embodiment will be described with reference to FIGS. FIG. 8 is a block diagram showing the configurations of a hypermedia distribution device and a hypermedia display terminal according to another embodiment. In FIG. 8, reference numeral 3 is a hypermedia distribution device, and reference numeral 4 is a hypermedia display terminal. Reference numeral 30 is a related metadata repository. Reference numeral 31 is user view information for managing the content that the user actually refers to, and stores the content ID. Reference numeral 32 is object information that manages the objects used in the content, and stores the object ID. Reference numeral 33 is object position information that manages in which content each object is used, and stores a content ID, an object ID, and position information. Code 3
Reference numeral 4 is related information for centrally managing the relationship to which the metadata is attached. Reference numeral 35 is metadata for centrally managing the position information and the content of the metadata.
D, related ID (positional information), and metadata content (metadata entity) are stored.

Reference numeral 36 is a hypermedia display terminal 4
Is a metadata creation unit that creates a new metadata instance in the associated metadata repository 30 in response to the. Reference numeral 37 is a metadata display unit that accesses the associated metadata repository 30 in response to a request from the hypermedia display terminal 4, searches for metadata, and passes the result to the hypermedia display terminal 4 with the metadata.
Reference numeral 38 denotes metadata update / update of metadata in the associated metadata repository 30 in response to a metadata update request from the hypermedia display terminal 4.
It is a deletion unit. Reference numeral 41 is a metadata management unit that allows the user to create metadata, search for metadata, and edit / delete the results. Reference numeral 42 is a content display unit for displaying the content to which the metadata is attached to the user.

The structure of the associated metadata will be described with reference to FIG. In the metadata, the attachment targets are “scene”, “object”, and “association”, and are related by any combination thereof. A "scene" is a certain scene on the screen that the user actually sees. This corresponds to the scene in the moving image when the content is a moving image, and becomes the screen status in the case of an arbitrary application. An "object" is a component that constitutes a scene, and is, for example, a person or an object in an image. In the case of video, these are encoded objects, and in any application they are control objects on the screen.
"Relationship" is to associate the scene with the object,
This relation is "relationship between scene and object" (reference K
1), "Relationship between scenes" (reference code K2), "Relationship between objects" (reference code K3), "Relationship between scene and connection"
There are six types in total (reference symbol K4), "relationship between object and association" (reference symbol K5), and "relationship between association and association" (reference symbol K6).

Next, the operations of the hypermedia distribution device 3 and the hypermedia display terminal 4 shown in FIG. 8 will be described.
First, the operation of creating metadata will be described. First, the metadata management unit 41 creates a content of metadata at the same time when the user specifies an attachment target. The specification of the attachment target is a specification of what (combination target A) and what (combination target B) are related. When "object" is specified, which object is specified, and when "scene in the user view" is specified Specify which scene of which content.

Next, the metadata management unit 41 sets a set of the attachment target (combining target A, scene A, combining target B, scene B) and the newly created data of the content of the metadata, which are the input contents of the user. It is passed to the data creation unit 36. In response to this, the metadata creation unit 36 receives the creation request and the set of newly created data from the metadata management unit 41. Then, referring to the related information 34 in the related metadata repository 30, it is confirmed whether or not there is the same instance as the attachment target in the newly created data set. As a result, when the same instance exists, an instance having the related ID of the same instance as the position information is created in the metadata 35. On the other hand, if the same instance does not exist, an instance (attachment target information in the newly created data set) is created in the related information 34. At the same time, an instance in which the related ID of the newly created related information is the position information is created in the metadata 35. This operation creates metadata in the associated metadata repository 30.

Next, a metadata search operation will be described. First, the user specifies search conditions (scene, object, content) in the metadata management unit 41. Then, the metadata management unit 41 passes the search condition, which is the input content of the user, to the metadata display unit 37. In response to this, the metadata display unit 37 receives the search request and the search condition from the metadata management unit 41. Then, the metadata display unit 37 uses the related information 34 and the metadata 35 in the related metadata repository 30 to set the metadata data set (metadata ID, related ID, metadata content, combination target A, scene). The list of A, combination target B, and scene B) is passed to the metadata management unit 41.
Subsequently, the metadata management unit 41 receives the list of metadata data sets and displays the metadata list as a search result of the metadata to the user. By this operation, the metadata in the related metadata repository 30 is searched and displayed.

Next, the operation of updating the metadata will be described.
First, the user selects the metadata to be updated from the list of metadata displayed in the metadata management section 41. Then, the user edits the attachment target information (combining target A, scene A, combining target B, scene B) and the content of the metadata selected in the metadata management unit 41. Then, the user specifies the update of the selected metadata in the metadata management section 41. In response to this, the metadata management unit 41 sends the metadata update request and the new metadata data set edited by the user to the metadata update / deletion unit 38. Metadata update / deletion unit 38
Receives an update request and a new metadata data set edited by the user from the metadata management unit 41, and based on the received metadata set, the metadata 35 and the related information 34 in the related metadata repository 30.
Update each instance of.

Next, the operation of deleting the metadata will be described.
First, the user selects the metadata to be deleted from the metadata list displayed in the metadata management section 41. Then, the user specifies the deletion of the selected metadata in the metadata management section 41. In response to this, the metadata management unit 41 sends the metadata deletion request and the metadata data set specified by the user to the metadata update / deletion unit 38. Metadata update / deletion unit 38
Receives a deletion request and the metadata data set specified by the user from the metadata management unit 41, and deletes each instance of the metadata 35 and the related information 34 in the related metadata repository 30 based on the received metadata set. . If the related instance is referenced by an instance with another metadata ID,
The instance of the related information 34 is not deleted. This operation updates or deletes the metadata in the associated metadata repository 30.

Next, the operation of displaying the metadata while referring to the content will be described. The metadata display unit 37 manages the metadata IDs and position information (combining target A, scene A, combining target B, scene B) of all metadata on the content when displaying the content on the content display unit 42. Then, the presence of the metadata is simultaneously displayed on the content display unit 42. When the metadata that the user wants to reference appears on the metadata display unit 37 from the content display unit 42, the user specifies the metadata. In response to this, the content display unit 42 sends the reference request and the metadata ID of the user to the metadata display unit 37, and the metadata display unit 37 receives the reference request and the metadata ID from the content display unit 42. Then, the metadata display unit 37 refers to the metadata 35 in the related metadata repository 30 to read the metadata content, and passes it to the content display unit 42. In response to this, the content display unit 42 receives the data content of the metadata and displays this metadata content. By this operation, the metadata is displayed while referring to the content.

Next, referring to FIG. 10, the operation will be described with a specific example. FIG. 10 (a) shows a test tube containing reagent B and reagent C in a scene in which test tubes containing reagent A, reagent B, and reagent C are displayed when teaching the generation of compounds in a chemistry class. Is an example in which metadata is attached to. By doing this, reagent A and reagent C
It is possible to guide the learner that dangerous chemical reactions will occur if the are mixed first. When attaching metadata to a scene, whether it is attached to an area, an object displayed in the territory, or another individual object displayed in the territory. It was ambiguous whether or not it was attached to, but by defining the relation, these can be strictly distinguished as shown in FIG. 10 (b) and attached to which object in which scene. It is possible to identify reliably. Further, FIG. 10 (c) defines the relation between scenes, and learning auxiliary data such as "be careful because the temperature becomes high during the combination" is added to the scene before the combination and the scene after the combination. It becomes possible to attach in the meantime.

As described above, it is possible to construct a more advanced hypermedia by defining the relation between the constituent elements of the hypermedia. Moreover, by applying it to distance education, it becomes possible to improve the learning effect more efficiently.

In the above description, the processing is distributed to the distribution device 1 and the display terminal 2, but the distribution and display may be composed of one device. Further, if necessary, the display terminal may be configured to perform only the display and execute the processing with a high processing load in the distribution device. Further, the device including each database may be selected according to the type of data to be stored.

Further, a program for realizing the function of the processing unit in FIGS. 1 and 8 is recorded in a computer-readable recording medium, and the program recorded in this recording medium is read into a computer system and executed. The distribution and display processing of hypermedia may be performed according to. In addition, "computer system" here
The term “OS” includes hardware such as OS and peripheral devices. In addition, the “computer system” includes a homepage providing environment (or display environment) if a WWW system is used. Further, the “computer-readable recording medium” refers to a portable medium such as a flexible disk, a magneto-optical disk, a ROM, a CD-ROM, or a storage device such as a hard disk built in a computer system. Further, the "computer-readable recording medium" is a volatile memory (RAM) inside a computer system which serves as a server or a client when a program is transmitted via a network such as the Internet or a communication line such as a telephone line. In addition, those that hold the program for a certain period of time are also included.

Further, the above program may be transmitted from a computer system in which the program is stored in a storage device or the like to another computer system via a transmission medium or by a transmission wave in the transmission medium. Here, the "transmission medium" for transmitting the program refers to a medium having a function of transmitting information, such as a network (communication network) such as the Internet or a communication line (communication line) such as a telephone line. Further, the program may be a program for realizing some of the functions described above. further,
It may be a so-called difference file (difference program) that can realize the above-mentioned functions in combination with a program already recorded in the computer system.

[0052]

As described above, according to the present invention, it is possible to construct a more advanced hypermedia by defining the relation between the constituent elements of the hypermedia. To be In addition, by applying it to distance education, it is possible to more effectively improve the learning effect.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing a table structure of a teaching material DB 11 shown in FIG.

FIG. 3 is an explanatory diagram showing a table structure of a learning auxiliary DB 13 shown in FIG.

FIG. 4 is an explanatory diagram showing a table structure of a display style DB 17 shown in FIG.

5 is an explanatory diagram showing a table structure of a display management DB 15 shown in FIG.

6 is an explanatory diagram showing an example of teaching material data and learning auxiliary data displayed on a display unit 25 shown in FIG.

FIG. 7 is an explanatory diagram showing an example of an input screen.

FIG. 8 is a block diagram showing a configuration of another embodiment.

FIG. 9 is an explanatory diagram showing a structure of related metadata.

FIG. 10 is an explanatory diagram showing a specific example.

[Explanation of symbols]

1. Hypermedia distribution device 2 Hypermedia display terminal 11 ・ ・ ・ Material DB 12 ... Video output section 13 ... Learning assistance DB 14 ... Learning auxiliary data input / output unit 15 ... Display management DB 16 ... Display management data input / output unit 17 ... Display style DB 18 ... Display format data input / output section 19 ... Information distribution control unit 20 ... Communication section 21 ... Communication section 22 ... Synchronization processing unit 23 ... Display data processing unit 24. Display data reproducing unit 25 ... Display 26 ... Input section 27 ... Display control unit N: Network 3 Hypermedia distribution device 4 Hypermedia display terminal 30 ... Related metadata repository 31 ... User view information 32 ... Object information 33 ... Object position information 34 ... Related information 35 ... Metadata 36 ... Metadata creation unit 37 ... Metadata display section 38 ... Metadata update / deletion section 41 ... Metadata management unit 42 ... Content display section

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Takehiko Watanabe             1-9-1, Konan, Minato-ku, Tokyo             IT Comware Co., Ltd. (72) Inventor Ikuo Yoda             1-9-1, Konan, Minato-ku, Tokyo             IT Comware Co., Ltd. F term (reference) 5B075 KK07 ND06 ND12 ND14 ND16                       NK13 NK14 NK24 NK44 NK48                       NS10 PQ02 PQ52                 5B082 HA05 HA08

Claims (13)

[Claims] 1. A hypermedia distribution device for distributing to a display terminal a hypermedia composed of main content and metadata attached to the content, wherein the hypermedia distribution device is the hypermedia. A related metadata repository that defines a relationship between the constituent elements that configure the component, and information that specifies the target to which the metadata is attached and the content of the metadata from the display terminal, and the new metadata is stored in the related metadata repository. A metadata creating unit that creates an instance, and accesses a related metadata repository in response to a request from the display terminal to read the metadata, and outputs the result to the display terminal in synchronization with the main content. A hypermedia characterized by including a metadata display means and Communication apparatus. 2. The hypermedia distribution device further comprises metadata updating / deleting means for updating or deleting the metadata defined in the related metadata repository in response to a request from the display terminal. The hypermedia distribution device according to claim 1, wherein the hypermedia distribution device is provided. 3. The related metadata repository exists between the scene of the main content and an object existing on the content, the relationship between the scene of the main content and the scene, and exists on the content. At least 1 of the relationships between objects
3. The hypermedia distribution device according to claim 1, wherein one association is defined. 4. A hypermedia display terminal for displaying hypermedia distributed from a hypermedia distribution device, wherein the hypermedia display terminal creates, searches, and retrieves metadata for the hypermedia distribution device. A hyper management system comprising: a metadata management unit for requesting editing / deletion of a result; and a content display unit for displaying a content attached with the metadata distributed from the hypermedia distribution device. Media display terminal. 5. A hypermedia processing method for delivering to a display terminal a hypermedia composed of main content and metadata attached to the content, wherein the hypermedia processing method is the display terminal. Metadata creation that receives information specifying a target to which the metadata is attached from and the content of the metadata, and creates a new metadata instance in the related metadata repository that defines the relationship between the constituent elements of the hypermedia. And a metadata display step of accessing the related metadata repository in response to a request from the display terminal, reading the metadata, and outputting the result to the display terminal in synchronization with the main content. A hypermedia processing method having. 6. The hypermedia processing method further includes a metadata update / deletion process of updating or deleting metadata defined in the related metadata repository in response to a request from the display terminal. The hypermedia processing method according to claim 5, wherein: 7. The related metadata repository exists between the scene of the main content and an object existing on the content, the relationship between the scene of the main content and the scene, and exists on the content. At least 1 of the relationships between objects
7. The hypermedia processing method according to claim 5, wherein one association is defined. 8. A hypermedia processing method for displaying hypermedia distributed from a hypermedia distribution device, the hypermedia processing method comprising: creating, searching, and searching metadata for the hypermedia distribution device. A hypermedia comprising a metadata management process of requesting editing / deletion of a result and a content display process of displaying a content attached with the metadata distributed from the hypermedia distribution device. Processing method. 9. A hypermedia processing program for delivering to a display terminal a hypermedia composed of main contents and metadata attached to the contents, wherein the hypermedia processing program is the display terminal. Metadata creation that receives information specifying a target to which the metadata is attached from and the content of the metadata, and creates a new metadata instance in the related metadata repository that defines the relationship between the constituent elements of the hypermedia. Processing, and a metadata display process of accessing the related metadata repository in response to a request from the display terminal, reading the metadata, and outputting the result to the display terminal in synchronization with the main content. Hypermedia processing characterized by being performed by a computer Program. 10. The hypermedia processing program further executes a metadata update / deletion process for updating or deleting the metadata defined in the related metadata repository in response to a request from the display terminal. 10. The hypermedia processing program according to claim 9, wherein 11. The related metadata repository exists between the scene of the main content and an object existing on the content, the relationship between the scene of the main content and the scene, and exists on the content. 11. The hypermedia processing program according to claim 9, wherein at least one relation is defined among the relations between the objects. 12. A hypermedia processing program for displaying hypermedia distributed from a hypermedia distribution device, wherein the hypermedia processing program creates, searches, and searches metadata for the hypermedia distribution device. A computer is made to perform a metadata management process for requesting editing / deletion of a result and a content display process for displaying a content attached with the metadata distributed from the hypermedia distribution device. Hypermedia processing program. 13. A computer-readable recording medium on which the hypermedia processing program according to any one of claims 9 to 12 is recorded.