KR20020088162A - Digital item configuration - Google Patents

Abstract

PURPOSE: A method for generating a digital item is provided to define the digital item by using an XML(Extensible Markup Language) schema definition language and to generate a new digital item by comparatively deciding if the digital item or a digital component satisfies the conditions of the selections. CONSTITUTION: The digital item or the digital component is prepared to form the new digital item by selecting the digital item or the component satisfying the specific conditions among the digital items and the components including the resources, the choices, the selections, and the conditions satisfying the conditions(S601). To form the new digital item or a new digital component, the selections are set up(S602). The selections include the information expressed numerically or by a size. The satisfaction of the digital item or the digital component with the conditions meant by the selections is decided based on the comparison of the conditions embedded in the digital item or the digital component(S603). The new digital item is formed by using the digital item or the component satisfying the conditions meant by the selections(S604).

Description

How to create a digital item {DIGITAL ITEM CONFIGURATION}

The present invention relates to the definition of a digital item as a handling unit of data for electronic commerce such as generation, processing, trading, transfer, management, storage, use of multimedia data.

In particular, the present invention relates to a digital item comprising a resource corresponding to the content of the content itself, metadata, which is a description of content content and use, and a configuration for constituting a digital item. The present invention relates to a comparison operation expression technique and method for a condition (CONDITION) for efficiently selecting a digital item selection item included in the component.

More specifically, in the present invention, when digital items including resources, meta data, and components are created under a condition desired by a user by digital item definition, when the selection item is set, a digital item or a component is selected. It is determined by comparing the conditions included in the digital item or component to determine whether the set selection item satisfies the CONDITION, and uses the digital item or component that satisfies the condition (CONDITION) of the set selection item. By constructing a new digital item by using the CONDITION, an efficient representation of the condition is achieved when the user wants to construct the desired digital item, thereby improving the efficiency of the comparison operation and the expression power of the condition. It relates to a method of creating an item.

In carrying out activities related to electronic commerce such as generation, processing, trading, transmission, management, storage, and consumption of multimedia data, a need for flexibility, consistency, and mutually compatible protocols is raised for the handling unit of multimedia data.

In particular, the lack of a definition model for the handling unit of multimedia data for electronic commerce is latent as a potential contributor to electronic commerce, in light of the increasing trend of electronic commerce due to the development of the Internet. Doing.

With this in mind, all users of the e-commerce business model (digital item creators, suppliers, distributors, consumers, intellectual property practitioners, industrial property practitioners, financial services providers, commerce watchers, etc.) Flexibility is defined by the definition of digital item in MPEG-21 within ISO / IEC SC29 / WG11, the international standards body, which considers the role of subjects as much as possible, Efforts are being made to make international standards consistent and coherent.

Therefore, the definition model of the digital item is to consider the relationship with the business model constituents (or users) of the e-commerce and related element technologies, and to enable e-commerce regardless of different types of networks or terminals. It is required.

The definition model of these digital items should be compatible with each other as a minimum unit for multimedia data in electronic commerce activities such as multimedia data generation, processing, trading, delivery, management, storage, and consumption, which is necessary for electronic commerce. Should be

In general, digital items, which are the unit of handling activities such as the generation, processing, trading, delivery, management, storage, and use of multimedia contents with intellectual property value in wired and wireless environments, are largely composed of three elements. That is, a resource corresponding to the content of the content itself (for example, the movie or music itself such as a video or audio), and a description information (DESCRIPTOR) describing the content and use of the content (for example, a movie or Title, genre, author's name, summary of content, terms of use of content, rules, etc., and components (CHOICE, SELECT, CONDITION) for organizing digital items It can be composed of).

In other words, the digital item includes metadata in addition to the resource itself. The metadata includes a description describing the resource, a user selectable selection, and a selection of these choices. Each selection and selection bundle contains a CONDITION to indicate that it is valid under certain conditions. In addition, digital items include many components (having actual resources (music files, picture files) and description information (DESCRIPTOR)), so that the user can select a desired component and configure it as a digital item suitable for the user. For example, digital items and components include a condition for indicating that they are valid under a specific condition set by the user. In particular, the CONDITION refers to the selection item. If the selection item is selected by the user in the reference list, the condition is true; otherwise, it is false.

As described above, a choice bundle is a representative choice name of several selection items, and a condition includes a description of conditions for indicating that the bundle selection and related choice items are valid under specific conditions. have.

Digital items can reconstruct many digital items that have already been created to create new digital items (composite digital items).

For example, image digital items may be configured to generate an upper digital item called an album. In this case, each image digital item is an external storage digital item that exists as an independent storage unit, and the newly created album digital item includes reference information that can be accessed to include them.

In addition, when constructing a digital item desired by the user using the CONDITION, an efficient expression method of the CONDITION becomes an important factor in determining the efficiency of the comparison operation and the expressive power of the condition. An efficient conditional expression method is required.

1 shows the structure of a digital item definition model.

As shown in FIG. 1, digital items are described in a digital item definition language (DIDL) by using DECLARATION, CONTAINER, ITEM, and the like.

The component includes a resource such as audio, video, graphics, and text, an anchor pointing to the resource, and a description information describing the component. An item (ITEM) is provided as a higher layer of a bundle type including the component or the item. It has a container CONTAINER as a higher layer of a bundle type including the item or the container.

FIG. 1 shows that a digital item may include other digital items, and that a reference element for accessing an external storage digital item is defined in the digital item.

In addition, the digital item shows a mechanism that allows the user to select a desired configuration by choice and selection. In addition, it shows that the user can compose the desired digital item by using the CONDITION, and the efficient expression method of the CONDITION becomes an important factor to determine the efficiency of the comparison operation and the expressive power of the condition. Therefore, it can be seen that an efficient condition expression method considering the characteristics of the condition comparison object is required.

The present invention proposes a digital item creation method that can solve a problem related to the use of CONDITION among the elements of a digital item.

According to the present invention, a digital item or component refers to a condition indicated by a digital item or component set in a component including a resource, a selection, a selection, and a condition. The present invention proposes a method of determining whether or not is satisfied and generating a new digital item using a digital item or component satisfying the above condition.

Description of the Invention The present invention relates to the construction of a digital item, which is a general handling unit for generating, processing, trading, delivering, managing, storing, and using multimedia content in connection with electronic commerce in a wired and wireless environment. As a method, in particular, the present invention defines a digital item using an XML-Schema Definition language, and compares and determines whether the digital item or component satisfies a CONDITION defined by the set selection. A description of a new digital item and a method of constructing the same by using a digital item or a component satisfying a condition indicated by the selected selection item are provided.

1 is a diagram showing the structure of a digital item definition model

FIG. 2 is a view showing a first embodiment of defining a condition in the method for generating a digital item of the present invention. FIG.

3 illustrates an example of a digital item created using a definition language according to the first embodiment of the present invention.

FIG. 4 is a view showing a second embodiment of defining a condition in the digital item generating method of the present invention. FIG.

FIG. 5 illustrates an example of a digital item created using a definition language according to a second embodiment of the present invention. FIG.

6 is a flowchart of a method for creating a digital item of the present invention.

The present invention selects only a digital item or component that satisfies a condition set in a digital item or component including a resource, a choice, a selection, and a condition. In order to construct a digital item, setting a selection item, determining whether a digital item or a component satisfies a condition defined by the set selection item, and setting the selection item. A digital item generation method comprising the step of constructing a new digital item using a digital item or component that satisfies this condition (CONDITION).

Further, in the present invention, determining whether the digital item or component satisfies a condition (CONDITION) indicated by the set selection (SELECTION) is made by comparing the condition (CONDITION) included in the digital item or component, wherein the condition The comparison of is characterized in that it is made of 'large', 'greater than or equal', 'small', 'small or equal', 'equal', 'not equal'.

In addition, in the present invention, for the comparison of the conditions, the selection item (SELECTION) is characterized by including information representing the meaning of the selection item ID (SELECT_ID) and the corresponding selection item (SELECTION) in size or numerical value.

In addition, in the present invention, the meaning of the selection item may be expressed by a magnitude or a numerical value, and the advantage of the selection item may be represented by a precept in the attribute of the selection item.

In addition, in the present invention, expressing the meaning of the selection item as a size or a numerical value is characterized by expressing the precedence in the element of the selection item.

In the present invention, the digital item is characterized in that the XML schema definition language.

Referring to the accompanying drawings, the digital item generating method of the present invention made as described above in detail as follows.

1 shows the basic structure of a digital item definition model in a diagram.

As shown in FIG. 1, a digital item is defined and composed of various components, which includes a selection bundle, a selection item, a component, a condition, and the like to be mentioned in the present invention. It can be seen that.

CHOICE is a representative selection name of several selection items, and its underlying structure is a conditional condition (CONDITION) to describe the selection bundle and its related choices under certain conditions. (DESCRIPTOR) and its selection item (SELECTION).

In general, one CHOICE has several selections.

In addition, the selection item SELECT has a condition under which the item is selected and a description of the selection item. Each selection has a selection ID (SELECT_ID), and the CONDITION of the selection to indicate that the selection is valid under a particular condition must be selected to set that condition to true. ID reference information (IDREFS) including the ID (SELECT_ID) of the selection item to be included.

One item (ITEM) may include a plurality of selection bundles (CHOICE), each selection (CHOICE) includes a condition (CONDITION) to indicate that the selection bundle is valid in a particular condition.

When generating a new digital item using a CONDITION in such a digital item definition model, the present invention proposes two methods.

An example of the first defining method is shown in FIG.

2 shows what is described in the XML Schema Definition Language as part of the Digital Item Definition Language. In FIG. 1, the CONDITION has OP as an attribute (expressed in bold type). Here, OP can compare GT (greater), GE (greater or equal), EQ (equal), LE (smaller or equal), and LT (smaller). In addition, PRECEDENCE, which is a characteristic of the selection item, has a relative size or an objective size between the selection items to be used when comparing the selection ID ID SELECT_ID. Here, it is described that it has a PRECEDENCE as an attribute of the selection (expressed in bold type).

In the present invention, the condition refers to the selection item, and is true or false by the comparison of the reference list of the selection item selected by the user and the condition (condition). Is not different).

FIG. 3 is a diagram showing an example of a digital item created using a definition language according to the first embodiment of the present invention of FIG.

The first choice bundle (CHOICE) is the user's baud rate (... CHOICE_ID = "COM_LINE"), and the second choice bundle (CHOICE) is the video format (... CHOICE_ID = "MOVIE_FORMAT").

Since the communication speed of the first choice bundle (CHOICE) is comparable in size, the size is defined in the PRECEDENCE which is a characteristic of the selection item. For example, the size is defined in the PRECEEDENCE, which is a characteristic of the selection, such as SELECT_ID = "MBPS52" PRECEDENCE = "SPEED.52000000", SELECT_ID = "MBPS1.5" PRECEDENCE = "SPEED.1500000". gave.

In the second CHOICE, the video format is selected, depending on which selection was selected in the previous selection. For example, if the user selects "MBPS52", the corresponding PRECEDENCE 52000000 is larger than 8000000 and larger than 128000, so it is possible to select both MPEG2 and MPEG4 formats. That is, the <SELECTION SELECT_ID = "MPEG2_FORMAT"> and <CONDITION OP = "GE" REQUIRE = "MBPS8" /> can be selected from 8000000 or more in the case of MPEG2 format, and the <SELECTION SELECT_ID = "MPEG4_FORMAT"> and <CONDITION This is because the MPEG-4 format can be selected from 128000 or more by OP = "GE" REQUIRE = "KBPS128" />.

However, if the user selects "MBPS1.5", the corresponding PRECEDENCE 1500000 is smaller than 8000000, so the user cannot select the MPEG2 format, and the MPEG4 format can be selected because it is larger than 128000. That is, the <SELECTION SELECT_ID = "MPEG2_FORMAT"> and <CONDITION OP = "GE" REQUIRE = "MBPS8" /> can be selected only in the case of MPEG2 format over 8000000, and the <SELECTION SELECT_ID = "MPEG4_FORMAT">, <CONDITION This is because the MPEG-4 format can be selected from 128000 or more by OP = "GE" REQUIRE = "KBPS128" />.

4 shows a second defining method according to the method for generating a digital item of the present invention.

In FIG. 4, the condition CONDITION is the same as in the case of FIG. 2 described above, and the size of the selection item ID SELECT_ID is described in the description information DESCRIPTOR, which is an element of the selection item.

That is, FIG. 4 shows what is described in the XML schema definition language as part of the digital item definition language. In FIG. 4, the condition CONDITION has OP as an attribute (in bold type). Here, OP can compare GT (greater), GE (greater or equal), EQ (equal), LE (smaller or equal), and LT (smaller). The size of the selection item ID SELECT_ID is described in the description information DESCRIPTOR, which is an element of the selection item.

In the present invention, the condition refers to the selection item, and is true or false by the comparison of the reference list of the selection item selected by the user and the condition (condition). Is not different).

FIG. 5 is a diagram showing an example of a digital item created using the definition language according to the second embodiment of the present invention of FIG.

The first choice bundle (CHOICE) is the user's baud rate (... CHOICE_ID = "COM_LINE"), the second choice bundle (CHOICE) is the video format (... CHOICE_ID = "MOVIE_FORMAT"), and each choice ID The size of the (SELECT_ID) is in the description information (DESCRIPTOR) which is an element of the selection item (SELECTION).

Since the communication speed of the first choice bundle (CHOICE) can be compared with the size, the size is defined in the description information (DESCRIPTOR). For example, in the case of SELECT_ID = "MBPS52", the description information (DESCRIPTOR) ... PRECEDENCE 52000000; in the case of SELECT_ID = "MBPS1.5", the description information (DESCRIPTOR) ... PRECEDENCE 1500000, etc. The size of the optional item ID is defined.

In the second CHOICE, the video format is selected. When comparing the conditions of the selection, the application compares the reference value in the PRECEDENCE value in the DESCRIPTOR.

For example, if the user selects "MBPS52", the corresponding PRECEDENCE 52000000 is larger than 8000000 and larger than 128000, so it is possible to select both MPEG2 and MPEG4 formats. In other words, if ..SELECT_ID = "MBPS52" is selected in the first choice (CHOICE), MPEG2 is selected by <SELECTION SELECT_ID = "MPEG2_FORMAT">, <CONDITION OP = "GE" REQUIRE = "MBPS8" /> in the second choice (CHOICE). This is because the format can be selected from 8000000 or more, and can be selected from 128000 or more in the MPEG4 format by <SELECTION SELECT_ID = "MPEG4_FORMAT"> and <CONDITION OP = "GE" REQUIRE = "KBPS128" />.

However, if the user selects "MBPS1.5", the corresponding PRECEDENCE 1500000 is smaller than 8000000, so the user cannot select the MPEG2 format, and the MPEG4 format can be selected because it is larger than 128000. That is, the <SELECTION SELECT_ID = "MPEG2_FORMAT"> and <CONDITION OP = "GE" REQUIRE = "MBPS8" /> of the second selection can only be selected in 8000000 or more in the case of the MPEG2 format, and <SELECTION SELECT_ID = "MPEG4_FORMAT"> This is because the MPEG4 format can be selected in 128000 or more by <CONDITION OP = "GE" REQUIRE = "KBPS128" />.

6 is a flowchart schematically showing the digital item generating method of the present invention described above.

As shown in FIG. 6, it can be seen that the digital item generating method according to the present invention is performed as follows.

First, a digital item or component that satisfies a condition set in a digital item or component including a resource, selection, selection, and condition is selected and then digitally selected. A digital item or component is prepared to construct an item (step S601).

In a next step S602, a selection item is set to form the new digital item or component. Here, the selection item may include information expressing the meaning of the selection item ID (SELECT_ID) and the meaning of the selection item in size or value for comparing the conditions of the next step, and expressing the meaning of the selection item in size or value. To express by means to express the predicate (PRECEDENCE) in the attribute of the selection item, or to express the prestige (PRECEDENCE) in the element of the selection item.

In a next step S603, it is determined whether the digital item or component satisfies a condition (CONDITION) that means the selected selection item. The determination of whether the digital item or component satisfies the condition indicated by the set selection item is performed by comparing the CONDITION included in the digital item or component, and the comparison of the conditions is 'large', 'large or equal'. , 'Small', 'small or equal', 'equal' or 'not equal'.

In the next step S604, a new digital item is constructed by using a digital item or component that satisfies the condition indicated by the set selection item.

An example of a new digital item constructed by this series of generation processes is the same as described above with reference to FIGS. 3 and 5.

The present invention proposes a method of expressing a condition included in a digital item or component for an effective comparison of user setting conditions when constructing a new digital item using digital items or components having characteristics desired by a user.

The present invention determines whether a digital item or component satisfies a condition indicated by a set selection item by comparing a condition included in the digital item or component, and determines a condition meant by the set selection item. By constructing a new digital item using a satisfactory digital item or component, an efficient representation of the condition is achieved when the user constructs the desired digital item using a CONDITION, and thus the efficiency of the comparison operation To improve the expressive power.

Therefore, according to the present invention, when constructing a digital item desired by a user by using a CONDITION, an efficient expression method of the condition enables the efficiency of expression and the expressive power of the condition to be improved, and the digital item satisfies the setting condition. Alternatively, new digital items can be created using only components.

Claims (6)

A digital item is selected by selecting only a digital item or component that satisfies the condition set in the digital item or component including the resource, selection, selection, and condition. In order to configure, setting the selection item (SELECTION), determining whether the digital item or component satisfies the condition (CONDITION) means the set selection item (SELECTION), the set selection (SELECTION) means And constructing a new digital item using a digital item or component that satisfies a condition. The method of claim 1, wherein the determining of whether the digital item or component satisfies a condition indicated by the set selection item is performed by comparing the condition included in the digital item or component, Here, the comparison of the conditions is a digital item generation method, characterized in that made of 'big', 'large or equal', 'small', 'small or equal', 'equal', 'not equal'. The method of claim 1 or 2, wherein the selection item (SELECTION) includes information representing the selection item ID (SELECT_ID) and the meaning of the selection item (SELECTION) in size or numerical value for comparing the conditions. How to create a digital item. 4. The method of claim 3, wherein expressing the meaning of the selection item as a size or a numerical value expresses an advantage in the attribute of the selection item. 4. The method of claim 3, wherein expressing the meaning of the selection as a size or a numerical value expresses a precedence in an element of the selection. 3. The method of claim 1 or 2, wherein said digital item is described in an XML schema definition language.