JP2581389B2 - How to edit links - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for editing links between nodes in hypermedia information including media data such as moving images / audio / still images / texts.

[0002]

2. Description of the Related Art In recent years, digitized documents having a non-linear structure called hypermedia are appearing. Hypermedia is text / audio /
A link is provided between multimedia information such as still images / moving images, and the relationship between data can be freely set. Here, hypermedia composed of only text is called hypertext.

Conventionally, when creating such hypermedia, a node including media data is first created,
A method of setting a link between nodes by a user has been generally used. For example, there is an editing method in which a plurality of nodes called cards are created, and after the cards are created, links between the cards are established. This method, for example,
This is described in detail in the document "The Hypercard (above), March 1988". This is referred to as method 1.

On the other hand, when a large-scale hypermedia having the same structure is created, it is important to reuse a previously created hypermedia structure, since the number of creation steps can be greatly reduced. In connection with this, as a function that has been conventionally realized, a method has been proposed in which a node is copied and the data of the copied node is replaced to realize reuse of the hypermedia structure. This method is described in the document "Proceedings of Hypertext '91, Hypermedia Templates: An Authors Tool, December 1991 (Proceed).
ings of Hypertext'91, Hyper
media Templates: An Author
r's Tool, Dec. 1991, pp 147-1
60) ". This is referred to as method 2.

[0005]

According to the first method described above, 1) a card must always be created before link editing, and when a card cannot be created due to lack of media data, a hypermedia link editing is performed. Can't do 2)
For hypermedia with many common link structures, when changing the common structure, the link structure cannot be changed in a batch. 3) When creating a large-scale application, always create only from the bottom up. Can not,
4) Hypermedia cannot be divided into modules or structured editing cannot be performed. Therefore, when editing a large-scale hypermedia, the number of links and nodes of the created hypermedia becomes enormous, making it difficult to grasp the structure. And other problems.

[0006] Next, in the second method described above, the concept of a template is adopted, and the hypermedia structure can be reused. However, since the template is a copy of the node created once, the link of the copied node is not updated even if the link between the original nodes is changed, so the links of all copied nodes are re-edited There is a problem that must be done. Another problem is that only bottom-up creation is possible.

[0007]

SUMMARY OF THE INVENTION The present invention has solved the above-mentioned problems, and a first invention comprises media data such as moving picture / audio / still picture / text stored in a storage medium. In the hypermedia information, a method for editing a link between nodes, wherein the node does not include a substance of data, a link output identifier representing a link starting from the node, and a link input identifier terminating at the node, A data template having at least the name of the data to be registered as an attribute, displaying a plurality of graphics representing the data template on a screen, and representing the link output identifier between different data templates; The link between the data templates is set by connecting the shape representing the By displaying a graphic representing the data, designating the correspondence between the graphic representing the data, the link output identification, and the link input identifier, and superimposing the graphic representing the data on the graphic representing the data template, This is a link editing method characterized by setting a link between them.

According to a second aspect of the present invention, a graphic representing a plurality of data templates linked by a link is displayed instead of data with respect to the graphic representing the data template in the first invention, and the graphic representing the data template is displayed as the graphic. The link editing method according to claim 1, wherein modularization of the data template is realized by overlapping.

[0009]

According to the first aspect of the present invention, a link is set between data templates, which are nodes having no data substance, and the operation of registering data in the data template is performed using a graphic interface, so that data is created before data creation. It is possible to edit links and to reuse the hypermedia structure.

[0010] Hereinafter, the plurality of linked data templates will be referred to as hypermedia templates.

The first invention will be described with reference to FIGS. 1 (a), 1 (b) and 1 (c).

FIGS. 1 (a), 1 (b) and 1 (c) are diagrams schematically illustrating the editing method according to the first invention.

In FIG. 1A, a data template and a link input identifier and a link output identifier of each template are created by user input, and are displayed in a graphic form. In the figure, the link input identifier is represented by ○ and the link output identifier is represented by □.

Next, a link between the data templates is created. For example, a graphic 11b representing a link output identifier is designated, and then a graphic 12a representing a link input identifier is designated to establish a link 13. In the same manner, a plurality of links are created and a hypermedia template is constructed.

Next, as shown in FIG. 1B, a graphic representing the data 14, 15, 16, 17 to be registered is displayed on the screen. The data 14 and 15 are registered in the data template 11, and the nodes 16 and 17 are registered in the data template 12, respectively. Here, the link defined by the hypermedia template is associated with the data.

For example, internal input links 14a and 15a connected to the link input identifier 11a of the data template 11 and internal output links 14b and 15b connected to the link output identifier 11b are created for the data 14 and 15, respectively, and displayed on the screen. . The data 16 and 17 are the link input identifiers 12a of the data template 12, respectively.
Internal input links 16a and 17a connected to the internal output link 16b connected to the link output identifier 12b,
17b and internal output links 16c and 17c that specify the link output identifier 12c are created and displayed on the screen.

Next, as shown in FIG. 1C, the hypermedia template 11 and the data 1 created in FIG.
By specifying 4 with a mouse or the like, the data template 1
1, data 14 is registered, 14a is an internal input link to the link input identifier 11a, and 14b is an internal output link to 11b. Similarly, data template 1
2 can be registered with the data 16. Here, a link between the data 14 and the data 16 is set by the internal output link 14b, the link 13, and the internal input link 16a. In this way, hypermedia linked to the data 14 to 16 is created. Similarly, data templates 11 and 12 have data 15 and 17 respectively.
Is registered, a hypermedia with a link between the data 15 and 17 is created.

When the data registration in the hypermedia template is completed, the hypermedia template is stored with the entity name.

As described above, in link editing of data having a common hypermedia structure, a link is created between data templates in advance, and data is specified in the data template. Link editing can be realized. Also, a new hypermedia having the same structure can be easily created by exchanging data to be registered inside.

According to a second aspect of the present invention, a hypermedia template created in the first aspect of the invention is registered as one module by performing a registration operation with a plurality of data templates linked by links instead of data using a graphic interface. The second invention is described below with reference to FIG.
This will be described with reference to (a), (b), and (c).

FIGS. 2A, 2B and 2C are diagrams for schematically explaining the editing method of the second invention.

First, a module template 21 as shown in FIG. 2A is created. Next, the link input identifier 21a and the link output identifier 2 of the module template 21
1b and 21c are created and displayed on the screen.

Next, a hypermedia template composed of data templates 22 and 23 connected by a link 24 as shown in FIG. 2B is displayed on the screen.

By specifying the graphic of the module template 21 displayed on the screen with a mouse or the like and then specifying the hypermedia template, the hypermedia template is registered in the module template 21 and the module is registered as shown in FIG. Template 21
Hypermedia templates (22, 23, 2)
4) is displayed overlapping. Here, by linking the link input identifier 21a of the module template 21 and the data template 22a with a straight line using a mouse or the like,
Link 25a between link input identifiers 21a and 22a
(Hereinafter referred to as internal input link). Similarly, the link output identifier 21b of the module template 21
A link 25b (hereinafter referred to as an internal output link) is set between the link output identifier 23b and the data template 23. Also, an internal output link 25c is set between the link output identifiers 21c and 23c.

As described above, the hypermedia template of FIG. 2B can be registered in the module template 21, and the hypermedia is constructed using the module template of FIG. 2A instead of the hypermedia template of FIG. 2B. can do. Further, the module template 21 defined above can be handled in the same manner as a data template, and an arbitrary data template can be linked to the link input identifier 21a. At this time, providing a link to 21a has the same meaning as providing a link to the link input identifier 22a of the data template 22.

According to the second aspect of the present invention, a data template can be hierarchized or modularized, and a top-down hypermedia link editing can be realized. Further, by simply changing the link of the data template, it is possible to realize link editing in which all links of the hypermedia having many common link structures can be changed collectively.

[0027]

Next, an embodiment of the present invention will be described with reference to the drawings.

FIG. 3 shows an example of the configuration of a link editing apparatus for implementing the link editing method according to the first invention. Details of each device are as follows.

The user input management unit 31 manages input devices such as a mouse and a keyboard, monitors input from a user, and sends the input to a command conversion unit 32 described later.

The command conversion unit 32 has a table of commands related to editing, converts mouse coordinates and keyboard input into commands related to editing, and notifies the data registration unit 33 and the link editing unit 34 described later. In the present embodiment, the following are defined as basic commands related to editing.

Instruction to data registration unit 33 1) Start of data registration The necessary data template and data are retrieved from a database management unit 36, which will be described later, and registration of data in the data template is started.

2) Completion of data registration Data registration is completed, and a database management unit 3 described later
6 stores the edited data.

3) Graphic selection A data template or a graphic representing a link input identifier and a link output identifier of the data template is specified.

4) Data registration Data is registered in the designated data template.

5) Registration of link input identifier One link input identifier of the data template is registered as a link to be input to the data.

6) Registration of link output identifier One link identifier of the data template is registered as a link coming out of the data.

Command to link editing unit 34 1) Start link editing Start editing of the specified hypermedia template.

2) End of link editing The editing of the hypermedia template being edited is ended.

3) Graphic selection The specified data template, link output identifier, link input identifier, and link are selected for editing. Actually, a figure on the screen is selected with a mouse or the like.

4) Data Template Creation A new data template is created and displayed on the editing screen.

5) Link edit The link destination of the specified link output identifier is specified. Actually, by selecting the link input identifier of the link destination data template, a straight line or a curve representing the link on the screen is displayed.

The data registering section 33 stores the command converting section 32
Based on the command sent from the server, the data specified by the database management unit is searched, and the data is registered / deleted in the hypermedia template being edited.

The link editing unit 34 includes the command conversion unit 32
The link editing process is performed based on the command sent from. At the start of editing, the designated hypermedia template and data template information are read from the database management unit 36, and an editing table for editing links between data templates is created.
5 is stored.

The data template used in this embodiment is
For example, it is described as follows.

[0045] _{Template_name Targetport: Target_name 1 Targetport: Target_name} 2: Targetport: Target_name y Linkport: Link_name 1, TargetTempla te_name 1, LinkTarget_name 1 Linkport: Link_name 2, TargetTempla te_name 2, LinkTarget_name 2: Linkport: Link_name x, TargetTempla te_name x, LinkTarget_name _x Template_name represents the identifier of the data template, and Targetport is a declarator indicating that the line is link input identifier information, Ta rget_
name _i is a link input identifier. Linkpor
t is a declarator indicating that this line is a link output identifier, (Link_name _i , TargetTemp
late_name _i , LinkTarget_nam
e _i ) represents a link output identifier, a link destination data template identifier, and a link input identifier, respectively.

Data template 1 in FIG.
1 can thus be described as follows:

11 Targetport: 11a Linkport: 11b, 12, 12a Here, Linkport: 11b, 12, 12a represents the link 13. A hypermedia template is described as an aggregate of data templates as follows.

[0048] _{HM_name Template_name 1, Dataname 1 Template_name 2} , Dataname 2: Template_name x, Dataname 2 here, HM_name the identifier of hypermedia template, Template_name _i data template identifier that make up the hyper-media template, is Dataname _i data template This is the identifier of the data to be registered. For example, if the hypermedia template of FIG. 1A is HYPER1, it can be described as HYPER1 11, null 12, null. Null is an identifier indicating a state in which data to be registered is not registered. in this way,
A hypermedia template in which each attribute value is described as null is registered as a type, and the hypermedia template in which data is registered is newly registered as an entity separately from the type. For example, as shown in FIG.
Assuming that the hypermedia template in which data is registered in ER1 is hyper1a, the hypermedia template is described as follows.

Hyper1a 11, 14, 12, 16 Here, hyper1a corresponds to the entity of the hypermedia template HYPER1.

The editing information storage unit 35 stores information on the hypermedia template, data template, and data being edited, and each template, a link input identifier, a link output identifier, and graphic drawing information representing data. These are the data registration unit 33, the link editing unit 3
4 always updated.

The database management unit 36 stores data such as data templates, hypermedia templates, data, and template types.

The graphic presentation control section 37 has a VRAM, draws a graphic with reference to the graphic table of the editing information storage section 35, and displays the graphic on a display screen of a graphic presentation section 38 described later.

The graphic presentation unit 38 includes a drawing device such as a CRT display, and draws edit data and edit results. It also displays an edit menu for the user.

Next, the operation of the link editing apparatus according to the first invention will be described.

FIG. 4 is a flowchart showing the operation of the link editing unit 34. Data template 1 in FIG.
FIG. 4 will be described by taking 1, 12 and data 14, 15, 16 as examples.

The operation of the link editing unit 34 will be described in more detail with reference to FIG. Each command sent from the command conversion unit 32 is presented on the screen in advance, and the user inputs the commands in a free order. Editing is performed by selecting a data template, a link input identifier, and a link output identifier with a mouse or the like and performing the selected graphic. At this time, a variable Current for storing the name of the data template being edited and a variable Link for storing the link input identifier and the link output identifier are prepared. (1) Display the edit command menu and display the command conversion unit 32
Waits for a command to be input (step 41). (2) If the command is a link editing start command, the hypermedia template to be edited is read from the database management unit 36 and stored in the editing information storage unit 35. Further, a graphic table is created, and each graphic is displayed on the graphic presentation control section 37 (steps 42 and 43). Here, as an example, FIG.
It is assumed that only the data template 11 of FIG. (3) If it is a link edit end command, the edit information storage unit 35
Is recorded in the database management unit 36, and the editing is terminated (steps 44 and 45). (4) If the command is a figure selection command, the coordinate value on the screen clicked by a pointing device such as a mouse and the figure table are referred to, and when a data template is selected, the variable C is selected.
When the name of the data template to be edited is stored in current, and the link output identifier and the link input identifier are selected, the identifier specified in the variable Link is replaced with the variable Cur
Stores the data template name having the identifier specified in rent. (Steps 46 and 47). Here, for example, the data template 11, Lin
The link identifier 11a (or 11b) is stored in k. (5) If the command is a data template creation command, the data template 12 is created and the link output identifiers 12b,
c, The user specifies the number and identifiers of the link input identifiers and causes the graphic presentation control unit 37 to display the corresponding graphic (steps 48 and 49). (6) If the command is a link edit command, the link 13 is set by specifying the link input identifier 12a with a mouse or the like as the link destination of the link output identifier 11b of the data template 11 specified by Link, and the graphic presentation unit 37 is set. Display the corresponding straight line or curve (step 410,
411, 412).

The operation of the link editing unit 34 has been described above. As described above, creation of a data template, a link input identifier, and a link output identifier, and creation of a hypermedia template by editing links between data templates can be realized. The example in FIG. 1 corresponds to the operation in FIG.

The link editing unit 34 has a link input identifier creation / deletion command, a link output identifier creation / deletion command,
It is easy to add an editing instruction such as a data template deletion instruction.

FIG. 5 is a flowchart showing the operation of the data registration unit 33. Data template 1 in FIG.
FIG. 5 will be described by taking 1, 12 and data 14, 15, 16 as examples.

The operation of registering data in the hypermedia template will be described with reference to FIG. Editing is performed by selecting a data template, a link input identifier, and a link output identifier with a mouse or the like and performing the selected graphic. For this purpose, a variable Current for storing a data template name and a variable Link for storing a link input identifier and a link output identifier are prepared. (1) Display the edit command menu and display the command conversion unit 32
And waits for a user input (step 51). (2) If the command is a data registration start command, the data template (11, 12, 1
3) is read out and stored in the editing information storage unit 35. Further, a figure table is created, and each figure is displayed on the figure presentation control unit 37 (steps 52 and 53). (3) If the command is a data registration end command, a new name is given to the hypermedia template (11, 12, 13) during data registration, the contents of the editing information storage unit 35 are recorded in the database management unit 36, and editing is completed. (Step 5
4, 55). (4) If the command is a figure selection command, the editing object is determined from the coordinate values on the screen selected by the mouse or the like and the figure table. For example, when the data template 11 is selected, the data template 11 to be edited is set to the variable Current. Is stored, and when the link output identifier 11b or the link input identifier 11a is selected, the identifiers (11b and 11a, respectively) specified for the Link are set to Cu
The data template 11 having the identifier designated as “rent” is stored. (Steps 56 and 57). (5) If it is a data registration command, a figure or menu representing data that can be registered is displayed, and when data 14 is selected with a pointing device such as a mouse, Current is displayed.
The data 14 is registered in the data template 11 specified by. Here, the data may be created in advance using a commonly used link editing device. In addition, as shown in FIG. 2C, the graphic presentation control unit 37 causes the graphic representing the data template 11 to be displayed on the screen on the graphic representing the data template 11 (steps 58, 59, and 510). (6) In the case of a link input identifier registration command, if one figure representing data is selected (for example, data 14), Cur
The data template 11 specified by rent and the link input identifier 11a specified by Link are registered as data link destinations. (Steps 511 and 51
2). (7) In the case of a link output identifier registration command, if one figure representing data is selected (for example, data 14), Cur
The data template 11 specified by “rent” and the link output identifier 11b specified by “Link” are registered as data link destinations. (Steps 513 and 51
4).

The above is the basic operation of the data registration unit 33. As described above, the association between the link input / output identifier of the data template of the data and the actual data registration to the hypermedia template can be realized. In the example of FIG. 1, it corresponds to the operations of FIGS.

By the operations of the link editing unit 34 and the data management unit 33, link editing between each data can be visually performed using graphics.

It should be noted that it is easy to change from the hypermedia template information for which data registration has been completed so as to describe the hypermedia template information without passing through the link structure data template between the data.

The description of the first invention has been completed.

Next, the second invention will be described.

FIG. 6 shows a link editing apparatus that implements the link editing method according to the second invention.

This device is obtained by adding a module registration unit 69 to the device according to the first invention.

The module template used in this embodiment is described as follows, for example.

[0069] _{Module_name Hypermedia_name: HM_name Targetport: Target_name 1} , In_targe t_name 1, In_target_port 1: Targetport: Target_name x, In_targe t_name x, In_target_port x Linkport: Link_name a, Target_name a, Target_port a: Linkport: Link_name z, Target_name z, Target_port _z Module_name is the identifier of the module data,
Hypermedia_name is a declarator indicating that HM_name is a hypermedia template to be registered. Targetport is a declarator indicating that this line is link input identifier information. Target_name _i represents a link input identifier, and In_target_name _i , In_target
et_port _i is an internal input link to the data template and link input identifier of the hypermedia template to be registered. Linkport is a declarator indicating that this line is link output identifier information.
Ink_name represents a link output identifier, and Targ
“et_name _i” and “Target_port _i” represent a data template of a hypermedia template to be registered and an internal output link from a link output identifier. For example, the module template 21 in FIG.
Specifies the name of the hypermedia application to be registered as H
Assuming that YPER1, 21 Hypermedia_name: HYPER1 Targetport: 21a, 22, 22a Linkport: 21b, 23, 23b Linkport: 21c, 23, 23c can be described. This is because the link to the link input identifier of the module template 21 is the same as the link input identifier 22a of the data template 22,
Link output identifier 21 of module template 21
b and 21c are the same as the link output identifiers 23b and 23c of the data template 23, respectively, and mean that the hypermedia templates (22, 23 and 24) of FIG.

Next, the hypermedia template constructed using the data template and the module template is described as follows.

[0071] _{HM_name Module_name 1, HM_name 1: Module_name} x, HM_name 1 Template_name 1, Dataname 1: Template_name n, Dataname n Module_name i, Template_nam
e _i is an identifier of a module template and a data template which constitute the hypermedia template, respectively. HM_name _i is a hypermedia template identifier registered in the module template, and Dataname _i is a data identifier registered in the data template. That is, the module template can be described in the same format as the data template. That is, hierarchical description is possible. In this way, it is possible to handle module templates in the same way as data templates.

Hereinafter, each device of the link editing device will be described.

The command conversion unit 62 includes a link editing unit 64
, A module creation instruction is newly added, and a module editing start instruction, a module editing end instruction, a hypermedia template registration instruction, a hypermedia template deregistration instruction, a link output identifier editing instruction are newly issued to the module registration unit 69. , A link input identifier editing instruction is added.

The link editing unit 64 is the same as the link editing unit 34 of the first invention, but differs from the link editing unit 34 of the first invention in FIG.
Simultaneously with the operation described in (b), when a new module creation instruction is received, the following operation is performed according to the flow shown in FIG. (1) If the command is a module creation command, a module template having the number of link output identifiers and link input identifiers specified by the user is created, and the graphics corresponding to the graphics presentation control unit 67 are displayed (steps 71 and 72).

The basic operation of the link editing unit 64 has been described above. Since the link editing of the module template can be performed in the same manner as the data template, it is possible to construct the hypermedia template using the graphic representing the module template.

It is easy to add to the link editing unit 64 editing commands such as a module template deletion command, a module template link input identifier addition / deletion command, and a module template link output identifier addition / deletion command.

The module registration unit 69 registers the hypermedia template in the module template based on the command sent from the command conversion unit 62. At the start of editing, the designated module template, data template, and hypermedia template are read and stored in the editing information storage unit 66.

The data registering unit 63 operates in the same manner as the data registering unit of the first invention, but can also register each data template of the hypermedia template registered as a module template.

The operation of the other devices is the same as that of the first invention.

Finally, the operation of the module registration section 69 will be described.

FIG. 8 is a flowchart showing the operation of the module registration section 69. The module template 21 and the hypermedia template (22, 2
3, 24), the module registration unit 69 will be described with reference to FIG. (1) Display the edit command menu and display the command conversion unit 62
And waits for a user input (step 81). (2) If the command is a module editing start command, the module template 21 to be edited is read from the database management unit 66 and stored in the editing information storage unit 65. Further, a graphic table is created, and the graphic is displayed on the graphic presentation control section 67 (steps 82 and 83). (3) If it is a module editing end command, the contents of the editing information storage unit 65 are recorded in the database management unit 66, and the editing is ended (steps 84 and 85). (4) If it is a hypermedia template registration command,
A figure or menu of a hypermedia template that can be registered is displayed, and when the user selects a figure or menu with a pointing device such as a mouse, the selected hypermedia template (22, 23, 24)
Is registered in the module template 21. Further, the graphic presentation control unit 67 displays the hypermedia template (22, 23, 2) on the graphic representing the data template 21.
The figure representing 4) is superimposed and displayed (steps 86 and 8).
7). (5) If link output identifier is edited, module template 2 specified by a pointing device such as a mouse
1 and the link output identifier 23b (or 23c) of the data template 23 in the hypermedia template (22, 23, 24).
The internal output link 25b (or 25c) is registered.
Further, the graphic presentation control unit 67 displays a straight line (or 25c) representing the internal output link 25b (steps 88 and 8).
9, 810). (6) If the link input identifier is edited, the link input identifier 21a of the module template 21 specified by a pointing device such as a mouse and the link input identifier 23a of the data template 23 in the hypermedia template (22, 23, 24) are stored. Then, the internal input link 25a of the module template 21 is registered. Also, the graphic presentation control unit 67 displays a straight line representing the internal input link 25a (steps 811, 812, 81).
3).

The above is the operation of the module registration section 69. With the above, a module template can be created,
Further, a hypermedia template including a module template can be created.

According to the present invention, when creating hypermedia, a hypermedia template composed of module data is created, and then a hypermedia template registered in the module data is created and registered. Top-down creation is possible. Further, if the structure of the hypermedia template registered in the module template is changed, it is possible to change all the hypermedia structures of the same module template at once.

Also, by using a module template, a composite node can be represented as one node, and therefore, it can be created in a large-scale hypermedia with an easy-to-see structure.

Furthermore, for example, the hypermedia template of FIG. 2B can be displayed using the module template of FIG. 2A, so that it can be displayed in a structured and easy-to-view structure.

[0086]

According to the first aspect of the present invention, 1) since data can be created after link editing using a data template is completed, hypermedia link editing can be realized even when there is no media. 2) By replacing the internal data, it is possible to create a new hypermedia having the same structure. Further, if the link of the hypermedia template is changed, the link can be changed without performing link editing between hypermedia data using the same hypermedia template.

According to the second aspect of the present invention, 3) the common structure of the hypermedia can be expressed as one module, and these can be edited collectively, thereby enabling top-down editing. 4) Hypermedia can be divided into modules or structured and edited, so that when creating a large-scale hypermedia application, the number of nodes and links to be displayed can be reduced, so that the structure is easy to understand. Hypermedia can be created.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of the first invention.

FIG. 2 is an explanatory diagram of the second invention.

FIG. 3 is a configuration diagram of a link editing device embodying the first invention of the present invention.

FIG. 4 is a flowchart showing the operation of a link editing unit in FIG. 3;

FIG. 5 is a flowchart illustrating an operation of a data registration unit 33 in FIG. 3;

FIG. 6 is a configuration diagram of a link editing device embodying the second invention.

FIG. 7 is a flowchart showing a part of the operation of a link editing unit 64 in FIG. 7;

8 is a flowchart showing the operation of the module registration unit 69 in FIG.

[Explanation of symbols]

11 Data Template 11a Link Input Identifier 11b Link Output Identifier 12 Data Template 12a Link Input Identifier 12b Link Output Identifier 12c Link Output Identifier 13 Link from Data Template 11 to Data Template 12 14 Data 14a Link Input Identifier 1 of Data Template 11
Internal input link 14a Link output identifier 1 of data template 11
Internal input link to 1b 15 Data 15a Link output identifier 1 of data template 11
1a Internal input link 15b Link input identifier 1 of data template 11
Internal output link to 1b 16 Data 16a Link input identifier 1 for data template 12
Internal input link with 2a 16b Link input identifier 1 of data template 12
Internal output link to 2b 16c Link input identifier 1 for data template 12
Internal output link to 2c 17 Data 17a Link input identifier 1 for data template 12
Internal input link with 2a 17b Link input identifier 1 of data template 12
Internal output link to 2b 17c Link input identifier 1 of data template 12
Internal output link to 2c 21 Module template 21a Link input identifier 21b Link output identifier 22c Link output identifier 22 Data template 22a Link input identifier 22b Link output identifier 23 Data template 23a Link input identifier 23b Link output identifier 23c Link output identifier 24 Data template Link from 22 to 23 25a Internal input link from link input identifier 21a to link input identifier 22a 25b Internal output link from link output identifier 23b to link output identifier 21b Internal output from link output identifier 23c to link output identifier 21c Link 31 User input management unit 32 Command conversion unit 33 Data registration unit 34 Link editing unit 35 Edit information storage unit 36 Database management unit 37 figure presentation control unit 38 figure presentation unit 61 user input management unit 62 command conversion unit 63 data registration unit 64 link editing unit 65 edit information storage unit 66 database management unit 67 figure presentation control unit 68 figure presentation unit 69 module registration unit

 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References IEICE Technical Report DE-91-3 (1991) 17-24 IEICE Technical Report DE-91-21 (1991) 67-72 Information Processing Society of Japan Research Report DBS89-7 (1992-7-23) 97−106

Claims (2)

(57) [Claims] 1. A method of editing a link between nodes in hypermedia information including media data such as moving image / audio / still image / text stored in a storage medium, the method comprising: Creating a data template having at least attributes of a link output identifier representing a link starting from the node, a link input identifier ending at the node, and a name of data to be registered; A plurality of graphics are displayed on the screen, and a graphic representing the link output identifier and a graphic representing the link input identifier are set by connecting a graphic representing the link output identifier with a graphic representing the link input identifier between different data templates by a straight line or a curve. displays, the a figure representing the data and the link output identifier Li Specifies the correspondence between click input identifier, said by superimposing the graphic representing the data on the figure representing the data template, link editing method and sets links between the nodes. 2. A data template module, wherein a graphic representing a plurality of data templates linked by a link is displayed instead of data with respect to the graphic representing the data template, and is superimposed on the graphic representing the data template. 2. The link editing method according to claim 1, wherein the link editing method is implemented.