JP3843810B2 - Multi-template management system and multi-template management program - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a multi-multi template management system and method and a multi-multi template management program for reducing the cost required for data creation when distributing information to a plurality of environments.
[0002]
[Prior art]
With the spread of mobile devices such as cellular phones, terminals connected to the Internet have been diversified. In the case of a browser environment for browsing the WWW (World Wide Web), the resolution, the number of colors, and the like of the output device also vary. When content data is disclosed in such a situation, inconvenience may occur in a terminal environment where it is not assumed that content is created assuming a specific terminal environment. For example, if you create content that includes images that require a large area for display on the premise of browsing on a desktop PC, the image cannot be displayed correctly on a mobile terminal with a narrow display screen or a mobile phone that cannot display images. May not be able to convey information accurately. However, creating content data suitable for each terminal that may be used for browsing in advance increases the cost of creating the content, which is not realistic. In order to solve such a problem, a “one-source multi-use” system as shown in Japanese Patent Application Laid-Open No. 11-015723, Portal-to-GO of ORACLE Corporation, Japanese Patent No. 3068131, and the like has been proposed.
[0003]
[Problems to be solved by the invention]
The technology disclosed in Japanese Patent Application Laid-Open No. 11-015723 and Portal-to-GO of ORACLE Inc. prepare templates and conversion components suitable for individual browser environments in advance, and use one source data for the browser to be used. Content data for each browser environment is output by converting with corresponding templates and components. In addition, the technique disclosed in Japanese Patent No. 3068131 also outputs a plurality of content data with different designs by applying a design change to a single source data according to a predetermined procedure. However, in both methods, it is necessary to create and manage templates and conversion procedures for each environment and design, so even if one template or conversion procedure is changed by changing the screen layout or increasing or decreasing display elements, The changes will not affect other templates. Therefore, since it is necessary to change all the templates and conversion procedures individually, the change work cost is still not reduced. Furthermore, if each template is changed individually, there is a high possibility that a correction omission or a change error will occur during the change operation. As a technique for dealing with this, there is a technique disclosed in Japanese Patent Laid-Open No. 10-269214 for the purpose of providing an environment in which the same correction work can be easily applied to a plurality of documents, but this is corrected to a plurality of buffers. The correction operation itself is not particularly automated simply by holding the character string, and the operation cost is not reduced so much.
[0004]
An object of the present invention is to provide a multi-template management system and method and a multi-template management program capable of reducing work costs required for changing templates for creating content data when distributing information to a plurality of environments and preventing correction omissions. Is to provide.
[0005]
[Means for Solving the Problems]
A multi-template management system according to the present invention is a multi-template management system that generates a plurality of content data using two or more templates from source data, and includes a tree generation unit that generates a tree structure from the template, and the template Difference generation means for generating difference information from the tree structure generated by the tree generation means when one of them is changed, and generating difference information indicating the change contents of the template from the template before and after the change, The difference generation means so Receive the difference information of the generated tree structure, By changing a tree structure generated from a template other than the changed template with the difference information of the received tree structure, and converting the changed tree structure into a template, For creating content data when distributing information to multiple environments Other than the modified template A template correction means for changing the template is provided.
[0007]
A multi-template management program according to the present invention is a multi-template management program for causing a computer to execute a process of generating a plurality of content data using two or more templates from source data, Computer Tree generation processing to generate a tree structure from a template means When one of the templates is changed, the tree generation process means Difference generation processing for generating difference information from the tree structure generated in step 1, and generating difference information indicating the change contents of the template from the template before and after the change means And the difference generation process means Receiving the difference information of the tree structure generated in By changing a tree structure generated from a template other than the changed template with the difference information of the received tree structure, and converting the changed tree structure into a template, For creating content data when distributing information to multiple environments Other than the modified template Template correction process to change the template Function as a means It is characterized by making it.
[0008]
The multi-template management system and multi-template management program of the present invention Generates a tree structure from a template, generates difference information from the generated tree structure when one of the templates is changed, and generates difference information indicating the contents of the template change from the template before and after the change And receiving the difference information of the generated tree structure, changing the tree structure generated from a template other than the changed template with the received difference information of the tree structure, and converting the changed tree structure into a template By changing the template other than the modified template for creating content data when distributing information to a plurality of environments, the template for creating content data when distributing information to a plurality of environments is changed. Reduce work costs required for change and prevent omission of correction.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described.
In the following description, only the elements indispensable for the implementation of the present invention are shown, and the description of the same elements as the conventional products well known to those skilled in the art is omitted. FIG. 1 is a block diagram showing an example of the configuration of the multi-template management system according to this embodiment. The multi-template management system 2 converts the source data 10 with N (N is an arbitrary number of 2 or more) templates 11-1 to 11-N, thereby enabling content data 12- corresponding to N types of browser environments. It manages N templates of a one-source multi-use system that provides 1 to 12-N.
[0010]
Here, the source data 10 mainly stores information that does not depend on the browser environment, and is described, for example, as text data in an XML (extensible Markup Language) format. FIG. 2 shows an example of the source data 10 described as text data in the XML format. The template describes a rule for converting source data according to the browser environment, and is described as shown in FIG. 3 using, for example, XSLT (XSL, eXtensible Style Language, Transformations). The content data is data that is actually displayed in each browser, and is described using, for example, HTML (HyperText Markup Language). As an example of this case, FIG. 4 shows the result of converting the source data of FIG. 2 with the template of FIG.
[0011]
The multi-template management system 2 shown in FIG. 1 changes the pre-change and the change when the tree generation means 20 for generating a tree structure from the templates 11-1 to 11-N and any one of the templates is changed. The difference generating means 21 that receives the tree structure generated by the tree generating means 20 from each of the subsequent templates and generates difference information of the tree structures, and the tree structure of each template generated by the tree generating means 20 and the difference A tree matching unit 22 that receives the difference information generated by the generation unit 21 and searches for a subtree included in the tree structure, and a procedure for changing a template based on the difference information generated by the difference generation unit 21 The change rule 23 describing the difference information, the difference information generated by the difference generation means 21 and the tree matching means 22 Using searched subtrees corresponding to the said change rule 23, and a template modification means 24 for changing operation of the template for content data creation at the time of distributing information to a plurality of environments.
[0012]
In other words, the output format dependent information (such as <P> tag of HTML document) from the template and the “tree generation” that configures the tree based on the information drawn from the data source, and the correspondence between each output format is saved “Matching knowledge”, “tree matching” for comparing the tree generated by the “tree generation” using the matching knowledge, and “difference generation” for extracting the correction work content of the template corrected by the editing work; When the information is distributed to multiple environments using the "change rule" describing the template change rule and the corresponding change rule from the template correction work, and using the comparison result of the "tree matching" Consists of "template modification" to modify individual templates for content data creation It is.
[0013]
Next, the operation contents when a change is made to one of the templates in the above-described multi-template management system will be specifically described with reference to the drawings. In the following description, since information is added to the source data 10, the operation of the multi-template management system when the template manager changes the template 11-1 to make the template 11-1a will be described. In the following description, only the template 11-1, the template 11-2, and the template 11-N are described, but the other templates 11-3 to 11- (N-1) are described. It is assumed that the same processing is performed for.
[0014]
1 generates a tree structure for each of the templates 11-1 to 11-N by determining a parent-child relationship between each node based on information included in each template. A specific generation procedure is as follows.
(1) Extract tag information of source data and content data included in a template.
(2) Using the extracted information as a node, generate a tree structure having the same parent-child relationship as the parent-child relationship where each information appears in the template.
[0015]
FIG. 5 shows an example when a tree structure is actually generated from a part of the template 11-1 shown in FIG. From the template 11-1, tag information of source data such as link and description, tag information of content data such as P and A, and HREF which is tag attribute information of the content data are extracted. It becomes a tree-structured node 108.
[0016]
Since the parent-child relationship of each node is determined to be the same as the parent-child relationship of the place where each information appears, for example, the node 105 P is an <xsl: template match = “link”> tag in the template. Therefore, a tree structure is generated as a child of the node 101 extracted from the <xsl: template match = “link”> tag. Thereafter, similarly, a tree structure is generated from the template as shown in FIG. Here, the rectangular nodes 101, 102, 103, and 104 in the figure are extracted as tag information of source data, the rounded nodes 105, 106, and 107 are extracted as tag name information of content data, and the ellipse node 108 is extracted as tag attribute information of content data. It has been shown.
[0017]
The tree generation means 20 extracts a tree structure in the same procedure for the templates 11-2 to 11-N. As an example, FIGS. 6A and 7A show a part of the templates 11-2 and 11-N, and FIG. 6B and FIG. 7 show the results of generating a tree structure from a part of each of the templates. Shown in (b). A template 11-2 shown in FIG. 6A is a template for a browser for a notebook PC. Compared with the template 11-1, a description (source data description) is used to save the display area of the screen. Are omitted). Further, the template 11-N in FIG. 7A is a template for a mobile phone browser. Further, in order to save screen display area, the link character string is shortened by the “substring () function in FIG. To “realize”.
[0018]
In the above situation, assume that image information is added to the source data of FIG. The added image information is represented by an <image> tag as indicated by reference numerals 201 and 202 in FIG. At this time, the template administrator adds only the increased image information to the content data, so that only the template 11-1 shown in FIG. 3 is changed to the template 11-1a shown in FIG. And The changed portion is a portion denoted by reference numeral 301 surrounded by a dotted line in FIG. At this time, the tree generation means 20 also generates a tree structure from the template 11-1a according to the procedure described above.
Part of the generated result is shown in FIG. Here, nodes 409, 410, and 411 expressed by dotted lines are portions corresponding to the changed portion 301.
[0019]
At this time, the difference generation means 21 deletes a common subtree by a known method from the tree structures shown in FIGS. 5 and 10 generated from the template 11-1 before the change and the template 11-1a after the change, respectively. By doing so, difference information is generated. For example, it can be executed by the following recursive procedure.
(1) Pay attention to each root node of two tree structures.
(2) If the nodes being noticed have the same name and both do not have children, the currently noticed node of each tree structure is deleted and the process ends.
(3) If the nodes being noticed have the same name and there are children of the same name among the children of each node, the processing from (1) is recursively with those children as the root node. To run. When processing is completed for all children with the same name, the node currently focused on in each tree structure is deleted and the processing ends.
(4) In cases other than (2) and (3) above, the process ends.
(5) When the processing is completed, the subtree remaining in the tree structure before the change is extracted as the deleted subtree, and the subtree remaining in the tree structure after the change is extracted as the additional subtree.
(6) The extracted deletion subtree, the additional subtree, and the parent node of those subtrees are paired to obtain difference information. However, regarding the parent node of the additional subtree, the node corresponding to the parent node in the tree structure before the change is set as the parent node.
In the case of FIGS. 5 and 10 described above, as shown in FIG. 11, there is no deleted subtree, the additional subtrees are nodes 409, 410, and 411 in FIG. 10, and the parent node of the additional subtree is the node 405 in FIG. Corresponds to the node 107 in the tree structure before the change.
[0020]
Next, the tree matching unit 22 receives the tree structure generated by the tree generation unit 20 and the difference information generated by the difference generation unit 21, and deletes a subtree included in the difference information or a parent of an additional subtree. A subtree matching the subtree rooted at the node is searched from the tree structure generated from each template by a known method. For example, it can be executed by the following recursive procedure.
(1) A node having the same name as the root node of the subtree to be searched is searched from the search target tree structure.
(2) If no such node exists, the search ends with a failure.
(3) When a node is found, it is checked whether or not the child of the found node and the child of the root node of the subtree can be associated one-to-one. If both nodes have no children, the search ends with success.
(4) If it cannot be associated, the search ends with a failure.
(5) If the association is possible, the processes from (3) are recursively executed with the corresponding children as the root. If the processing is successful for all children, the search ends as successful.
(6) If even one process for a child fails, the search ends as a search failure.
(7) The above processing is executed for all nodes having the same name as the root node of the subtree, and the search ends at all nodes or the search is successful at any one of the nodes.
In the case of the example, first, the subtree having the root of the parent node 107 of the additional subtree in FIG. 11 includes the node 107, the node 108, the node 104, and the node 103. The tree structure generated from the templates 11-2 to 11-N to be searched is searched from the tree structures of FIG. 6B and FIG. Then, the subtree 502 shown in FIG. 12 and the subtree 602 of FIG. 13 are obtained.
[0021]
Next, the template correction unit 24 corresponds to the change rule 23 describing the procedure for changing the template based on the difference information generated by the difference generation unit 21 and the subtree searched by the tree matching unit 22. Using the difference information generated by the difference generation means 21, a template change operation for creating content data when distributing information to a plurality of environments is performed. This change operation includes the following three steps: Step S1: Change of the tree structure, Step S2: Conversion of the changed portion into a template, Step S3: Change of the template.
Here, the steps will be described in order.
First, in step S 1, the tree structure of the template generated by the tree generation unit 20 is changed according to the difference information generated by the difference generation unit 21 and the rules described in the change rule 23. Here, the change rule 23 describes a method for adding an additional subtree to a template tree structure or deleting a deleted subtree, and is, for example, as shown in FIG. In the case of the difference information in FIG. 11, the subtree (node 409, node 410, node 411) of the additional subtree is added to the root node of the subtree 502 searched by the tree matching means 22 from the tree structure of the template 11-2. (Node 707, node 708, and node 709 in FIG. 15). Further, since the name of the root node (node 707) of the added subtree is IMG, it is added to the root node (node 707) of the subtree to which the attribute having the name “height” and the value “20” is added (the node in FIG. 15). 710, node 711). For the template 11-N, since the name of the root node 409 of the additional subtree is IMG, the tree structure is not changed.
[0022]
In the next step S2, the tree structure changed in step S1 is converted into a template according to a predetermined procedure. For example, the conversion procedure for template 11-2 is as shown in FIG. When the nodes 707 to 711 added to the tree structure generated from the template 11-2 are converted into templates according to this procedure, the result is as shown in FIG. Here, the node 707 is a template as indicated by reference numerals 801 and 804 in FIG. 17, the nodes 708 and 709 are templates as indicated by reference numeral 802 in FIG. 17, and the nodes 710 and 711 are templates indicated by reference numeral 803 in FIG. It corresponds.
[0023]
In the last step S3, the target template is changed based on the template obtained in step S2. Specifically, processing is performed by inserting a template obtained from the additional subtree into the target template and deleting a template obtained from the deleted subtree from the target template. The place to insert or delete is determined according to the modified tree structure. For example, the template FIG. 17 obtained from the additional subtree of FIG. 11 through FIG. 15 is inserted into the template 11-2, which is the target template shown in FIG. 6A, and finally becomes the template shown in FIG. Here, the place to be inserted is determined from the place changed in the tree structure of FIG. 15 (place that is a child of the node 702 and a brother of the node 706), is a child of the <A> tag, and <xsl : Value-of select = “data / name” /> This is a portion indicated by reference numeral 901 in FIG.
[0024]
Summarizing the above procedure, for example, the template 11 for creating content data when distributing information to different environments shown in FIG. 6A can be obtained simply by changing the template 11-1 shown in FIG. 3 as shown in FIG. -2 is changed as shown in FIG. In addition, the template 11-N for creating content data when distributing information to different environments in FIG. 7A does not need to follow the change of the template 11-1 at this time, and is not changed.
[0025]
Moreover, although the example of the above procedure is a case where an additional change is made to the template, the processing can be performed according to the above procedure even in the case of a deletion change. As an example, a case will be described in which part of the template is deleted by following the above addition procedure in reverse. That is, when the template 11-1 as shown in FIG. 9 is deleted from the template 11-1 shown in FIG. 9 and changed to the template as shown in FIG. The structures are as shown in FIGS. 10 and 5, respectively, and the difference information generated by the difference generation means 21 therefrom is as shown in FIG.
[0026]
The tree matching means 22 searches the tree structure generated from each template for a partial tree that matches the partial tree (nodes 405 to 411) having the root of the parent node 405 of the deleted partial tree. For example, when the template 11-2 is as shown in FIG. 18, the tree structure generated from the template of FIG. 18 is as shown in FIG. 15, and the search result is a subtree consisting of nodes 702 and 704 to 709. Is obtained.
[0027]
Next, the template correction means 24 changes the tree structure using the subtree deletion rule for the template 11-2 in FIG. Referring to the tree structure of FIG. 15, the nodes 707 to 709 corresponding to the subtree of the deleted subtree and the descendants of nodes 710 and 711 are deleted, and the tree structure of FIG. Is obtained. Next, when the subtree consisting of the deleted nodes 707 to 711 is converted into a template according to the conversion procedure of FIG. 16, it becomes as shown in FIG. 17, so the code of the template 11-2 of FIG. 18 corresponding to the template of FIG. The part 901 is deleted, and finally the template shown in FIG. 6A is obtained.
Summarizing the above procedure, for example, the template 11-2 of FIG. 18 is changed as shown in FIG. 6A only by changing the template 11-1 of FIG. 9 as shown in FIG.
[0028]
As described above, the multi-template management system according to this embodiment distributes information to a plurality of environments only by changing any one of a plurality of templates used in the one-source multi-use method. Other templates for creating content data at the time can be automatically changed as necessary. As a result, the work cost required to change the template can be reduced to 1 / N at the maximum, and the template change work is automatically performed by the system, so when distributing information to a plurality of environments. It is possible to prevent omission of template correction that may occur when all templates for creating content data are changed manually.
[0029]
In the description of the above embodiment, a template whose content data is HTML is targeted for management. However, content HTML, SMIL (Synchronized Multimedia Integration Language), BML (Broadcast Markup Language), etc. It is also possible to manage a template that generates
[0030]
Further, in the description of the embodiment, all templates generate content data in HTML format. For example, template 11-1 is content data in HTML format, template 11-2 is content data in Compact HTML format, The template 11-3 may be a management target of a template of a one-source multi-use system that generates content data in a plurality of formats, such as content data in the BML format.
[0031]
In the description of the embodiment, the template is described using XSLT. However, a template described using another format, such as JSP (Java Server Pages), may be used as a management target.
[0032]
In the above description of the embodiment, source data is text data in XML format. For example, a database using a template that can refer to a relational database table such as XDK (XML Developer's Kit) of Oracle Corporation is used. A template of a one-source multi-use system that uses the above table as source data may be managed.
[0033]
In the description of the above embodiment, the source data is one text data in XML format. For example, a plurality of text data, a plurality of database tables, or a combination of text data and a database table is used. Templates that use things as source data may be managed.
[0034]
Further, in the description of the above embodiment, as shown in FIG. 14, for the template 11-N, the template is not changed when the root node name of the subtree of the difference information is IMG. However, all the templates may be changed at once without providing such a change rule.
[0035]
In the description of the embodiment, the tree generation unit 20 generates the tree structure by extracting the tag information of the source data and content data included in the template, but generates the tree structure including other information. Also good. As an example, FIG. 20 shows a tree structure generated using all tag information included in a template.
[0036]
In the embodiment, more detailed information is included in the tree structure, so that the tree matching unit 22 can reduce a search mistake that results in an incorrect subtree in the subtree search.
[0037]
In the description of the embodiment, the difference generation means 21 and the template correction means 24 proceed based on the tree structure generated by the tree generation means 20, but the difference generation means 21 is a text file by UNIX, for example. The difference information is directly generated from the template by using a diff command or the like that is normally used when generating the difference (an example of the generation result is shown in FIG. 21). The template may be changed directly by using a patch command or the like that is standardly used when changing the file based on the difference of the text file in UNIX, similarly to the difference information generated by 21. FIG. 22 is a block diagram showing the configuration of the multi-template management system 4 at this time.
[0038]
Further, in the above embodiment, it is possible to construct a multi-multi template management system that can obtain the same effects as the multi-multi template management system shown in the configuration of FIG. 1 without the tree generation means 20 and the tree matching means 22. It becomes possible.
[0039]
In the description of the above embodiment, the template correction unit 24 changes the template based on the difference information generated by the difference generation unit 21. For example, the template correction unit 24 has the contents shown in FIG. A template to be managed may be corrected by receiving a correction instruction from the template manager. FIG. 23 is a block diagram showing the configuration of the multi-template management system 6 at this time.
[0040]
Further, in the above embodiment, even if the tree generation unit 20, the difference generation unit 21 and the tree matching unit 22 are not provided, the template manager only gives one correction instruction, similarly to the system shown in the configuration of FIG. It becomes possible to modify the templates to be managed in a batch.
[0041]
Further, as is clear from the description of the above embodiment, all processing procedures do not depend on the initial state of the template. Accordingly, the multi-template management system may be operated by setting the empty state of all the templates as an initial state to create one of the templates, or an editing instruction for creation may be sequentially given to the template correcting unit 24.
[0042]
In the embodiment, it is possible to create an initial template for a one-source multi-use system in a batch, and the work cost at that time can be reduced to 1 / N at the maximum.
[0050]
【The invention's effect】
According to the present invention, it is possible to change a template without being affected by differences in the format of each template or differences in non-essential parts such as comments, and content data creation when distributing information to multiple environments This has the effect of reducing the work cost required for changing the template and preventing omission of correction.
[Brief description of the drawings]
FIG. 1 is a block configuration diagram showing a configuration of a multi-template management system according to an embodiment of the present invention.
FIG. 2 is a diagram showing an example of source data in the multi-multi template management system according to the embodiment of the present invention.
FIG. 3 is a diagram showing an example of a template in the multi-multi template management system according to the embodiment of the present invention.
FIG. 4 is a diagram showing an example of content data in the multi-multi template management system according to the embodiment of the present invention.
FIG. 5 is a diagram showing an example of a tree structure generation result in the multi-multi template management system according to the embodiment of the present invention.
FIG. 6 is a diagram showing an example of a tree structure generation result in the multi-multi template management system according to the embodiment of the present invention.
FIG. 7 is a diagram showing an example of a tree structure generation result in the multi-multi template management system according to the embodiment of the present invention.
FIG. 8 is a diagram showing an example of adding source data in the multi-multi template management system according to the embodiment of the present invention.
FIG. 9 is a diagram showing a template change example in the multi-multi template management system according to the embodiment of the present invention.
FIG. 10 is a diagram showing a tree structure generated from a template after change in the multi-multi template management system according to the embodiment of the present invention.
FIG. 11 is a diagram showing an example of difference information in the multi-multi template management system according to the embodiment of the present invention.
FIG. 12 is a diagram showing a search result of a partial tree in the multi-multi template management system according to the embodiment of the present invention.
FIG. 13 is a diagram illustrating a search result of a partial tree in the multi-multi template management system according to the embodiment of the present invention.
FIG. 14 is a diagram showing an example of a template change rule in the multi-multi template management system according to the embodiment of the present invention.
FIG. 15 is a diagram showing a tree structure change result in the multi-multi template management system according to the embodiment of the present invention.
FIG. 16 is a diagram showing an example of a conversion procedure from a tree structure to a template in the multi-multi template management system according to the embodiment of the present invention.
FIG. 17 is a diagram illustrating a result of converting a changed part of the tree structure into a template in the multi-multi template management system according to the embodiment of the present invention.
FIG. 18 is a diagram showing a template change result in the multi-multi template management system according to the embodiment of the present invention.
FIG. 19 is a diagram showing another example of difference information in the multi-multi template management system according to the embodiment of the present invention.
FIG. 20 is a diagram showing an example of a generation result of a tree structure by another method in the multi-multi template management system according to the embodiment of the present invention.
FIG. 21 is a diagram showing an example of difference information in another format in the multi-multi template management system according to the embodiment of the present invention.
FIG. 22 is a block configuration diagram showing a configuration of a multi-multi template management system according to another embodiment of the present invention.
FIG. 23 is a block configuration diagram showing a configuration of a multi-multi template management system according to another embodiment of the present invention.
[Explanation of symbols]
10 ... Source data, 11-1 to 11 -N ... Template, 11-1 a ... Template that has been changed, 12-1 to 12-N ... Content data, 2, 4, 6 ... Multi-template Management system 20... Tree generation means 21. Difference generation means 22. Tree matching means 23 23 Change rule 24 Template correction means

Claims (10)

A multi-template management system that generates a plurality of content data using two or more templates from source data,
Tree generating means for generating a tree structure from the template;
Difference generation means for generating difference information from the tree structure generated by the tree generation means when one of the templates is changed, and generating difference information indicating the change contents of the template from the template before and after the change When,
The difference information of the tree structure generated by the difference generation means is received, the tree structure generated from a template other than the changed template is changed by the received difference information of the tree structure, and the changed tree structure is used as a template. A template correction means for changing a template other than the changed template for creating content data when distributing information to a plurality of environments,
A multi-template management system characterized by comprising:   2. The multi-template management system according to claim 1, wherein the template correction means receives a template correction instruction that defines a template change content and changes all of the templates at once.   The multi-template management system according to claim 1, wherein the template correction unit selectively changes only a part of the templates when receiving a template correction instruction that defines a template change content.   4. The template correction unit according to claim 1, wherein the template correction unit sequentially receives one or more template correction instructions from an initial state in which all the templates are empty, and changes the template. The multi-template management system described in the section.   The multi-template management system according to claim 1, wherein the tree generation unit generates a tree structure from tag information of the content data and tag information of the source data included in the template. A tree matching unit that receives the tree structure of each template generated by the tree generation unit and the difference information generated by the difference generation unit, and searches for a partial tree included in the tree structure;
The template correction means includes a change rule describing a procedure for changing a template based on the difference information generated by the difference generation means, the difference information generated by the difference generation means, and the tree matching means searches 6. The multi-template management system according to claim 1, wherein a template changing operation is performed using the correspondence of the partial tree and the change rule.   The multi-template management system according to any one of claims 1 to 6, wherein a content format of content data generated from the source data using the template is HTML, CompactHTML, SMIL, or BML. A multi-template management program for causing a computer to execute a process of generating a plurality of content data using two or more templates from source data,
Computer
Tree generation processing means for generating a tree structure from the template;
Difference generation processing for generating difference information from the tree structure generated by the tree generation processing means when one of the templates is changed, and generating difference information indicating the change contents of the template from the template before and after the change Means,
The difference information of the tree structure generated by the difference generation processing means is received, the tree structure generated from a template other than the changed template is changed by the received difference information of the tree structure, and the changed tree structure is A multi-template management program that functions as a template correction processing means for changing a template other than the changed template for creating content data when distributing information to a plurality of environments by converting to a template . 9. The multi-template management program according to claim 8, wherein the tree generation processing unit generates a tree structure from tag information of the content data and tag information of the source data included in the template. Receiving the tree structure of each template generated by the tree generation processing means and the difference information generated by the difference generation processing means, and comprising a tree matching processing means for searching for a partial tree included in the tree structure, the template correction In the processing means, a change rule describing a procedure for changing a template based on the difference information generated by the difference generation processing means, difference information generated by the difference generation processing means, and the tree matching processing means 10. The multi-template management program according to claim 8 or 9 , wherein a template change operation is performed using the searched partial tree correspondence and the change rule.

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