JP2009070236A - Data providing system and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a content for PC to a user's portable terminal having a proper access right in a form suited to the portable terminal. <P>SOLUTION: An ECM (Enterprise Contents Management) server 10 authenticates a user according to authentication information from an ECM client 20 and receives a request of "takeout" to a portable terminal 50 with respect to the PC content for which the user has the access right. In response to the request, a conversion server 30 converts the PC content into one for the portable terminal. The portable content obtained by conversion is stored by a temporary storage repository 45. The ECM server 10 has the ECM client 20 who has made a takeout request display a two-dimensional code representing an URL of the stored portable content. The user photographs the two-dimensional code with a camera of the portable terminal 50 and acquires the content from the temporary storage repository 45 via a portable terminal server 40. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a data providing system and a program.

  2. Description of the Related Art Content management systems that manage user access to content such as documents, photos, and moving images are widely used. For example, an ECM (Enterprise Contents Management) for managing contents in an organization such as a company is an example.

  Many conventional content management systems are premised on use from a PC (personal computer). On the other hand, with the improvement of the processing capability of mobile terminals such as mobile phones and PDAs (Personal Data Assistant), various contents including office documents and videos can be viewed on mobile terminals and are managed by the content management system. There is a growing need to carry content that is on mobile devices.

In addition, two-dimensional codes such as QR codes (registered trademark) have become widespread as means for guiding users to websites for mobile terminals.
For example, Patent Document 1 discloses a technique for reading a two-dimensional code printed in a catalog or the like with a camera of a mobile terminal and decoding it, and accessing a URL (Uniform Resource Locator) embedded in the two-dimensional code. .

  Patent Document 2 discloses a technique for capturing an image of a product displayed on a TV screen with a mobile terminal and transmitting the image to a server in television shopping, so that the server recognizes the image and identifies the product. Has been.

  In the system of Patent Document 3, content identification information is embedded in a printed material in the form of a digital watermark, and an image of the printed material is read by a camera of a mobile terminal and transmitted to a server. The server decodes the digital watermark in the image and returns the content corresponding to the identification information obtained as a result to the portable terminal.

JP 2003-244285 A JP 2005-122516 A JP 2004-086457 A

  Even if the capability of the mobile terminal is improved, resources such as a screen size and a memory capacity are much poorer than those of a PC, and restrictions on data formats and data sizes that can be browsed are severe. For this reason, there is an inconvenience that the content for PC cannot be displayed or output because it is too large, or even if it can be displayed, the display is not easy to view because the screen is small.

  In addition, in a system that manages access rights to content, the same access right management is required when content is provided to mobile terminals, but the input device is a weak mobile terminal and password entry etc. Requesting an operation for access authentication places a heavy burden on the user.

  All of the techniques disclosed in Patent Documents 1 to 3 are based on the premise of accessing content prepared in advance for a portable terminal (or a website that provides such content). No solution is disclosed in these patent documents from the viewpoint of making PC content registered in a content management system practically usable on a mobile terminal. Also, no special consideration is given to these documents regarding the management of access rights to contents.

  An object of the present invention is to provide content for an information processing device to a mobile terminal of a user having a legitimate access right in a form suitable for the mobile terminal.

  The invention according to claim 1 receives an access request for data stored in the database from the database storing data for the information processing apparatus and a user operating the information processing apparatus via the information processing apparatus. An access control means for determining an access right of the user to the data and permitting the user to access the data according to the determined access right, and determining that the user has an access right And receiving means for accepting a take-out request from the user to the portable terminal via the information processing apparatus, and in response to the take-out request, the data targeted for the request for the portable terminal Conversion means for converting the data into a data format, and temporary storage for temporarily storing the conversion result data converted by the conversion means Storage means; code information representing access information for accessing the conversion result data stored in the temporary storage means; and access information providing means for providing the information to the information processing apparatus; and the information processing apparatus displays When the data request using the access information is received from the portable terminal that has read the code information, the conversion result data corresponding to the access information stored in the temporary storage unit is provided to the portable terminal And a data providing system.

  The invention according to claim 2 is the invention according to claim 1, wherein provision of the conversion result data stored in the temporary storage means to the portable terminal by the data providing means satisfies a predetermined condition And a deletion unit that deletes the conversion result data from the temporary storage unit.

  According to a third aspect of the present invention, an access request for data stored in the database is sent from the user operating the information processing device to a database storing the data for the information processing device, or from the user operating the information processing device. An access control means for determining an access right of the user to the data and permitting the user to access the data according to the determined access right, and the user has an access right. With respect to the determined data, accepting means for accepting a take-out request from the user to the mobile terminal via the information processing device, and in response to the take-out request, the data that is the target of the request is sent to the mobile terminal Conversion means for converting to a data format for use, and the conversion result data converted by the conversion means are temporarily recorded. Temporary storage means for generating, code information representing access information for accessing the conversion result data stored in the temporary storage means, and providing the information to the information processing apparatus, and the information processing apparatus When the data request using the access information is received from the mobile terminal that has read the code information displayed by the mobile terminal, the mobile terminal stores the conversion result data corresponding to the access information stored in the temporary storage means. It is a program for functioning as a data providing means to be provided.

  According to the first or third aspect of the present invention, data for the information processing apparatus can be provided to a portable terminal of a user who has a right access right to the data in a form suitable for the portable terminal.

  According to the second aspect of the present invention, the possibility of leakage of the conversion result data can be reduced.

  As illustrated in FIG. 1, the content providing system of this embodiment includes an ECM (Enterprise Contents Management) server 10, a conversion server 30, a portable terminal server 40, and a temporary storage repository 45.

  The ECM server 10 manages content (office documents, images, moving images, etc.) used in an organization such as a company. The content stored in the ECM server 10 has a data format and a size that are assumed to be used on a PC or a workstation. The ECM server 10 accepts content registration from the user and provides managed content in response to a user request.

  However, regarding the provision of content, the ECM server 10 provides only content to which the user has access rights. For example, the system administrator or the user who registered the content sets the information on the access right of each user with respect to the content, and the ECM server 10 refers to the access right information to permit access to the content from the user. Determine whether or not. For such access control, the ECM server 10 has a user authentication function. The user authentication function authenticates a user who has accessed the ECM server 10 using, for example, a user ID and password, biometric authentication information such as a fingerprint, an IC card storing user authentication information, and the like. In addition, since a conventionally well-known mechanism can be used as the above-described access control or user authentication mechanism, further detailed description is omitted.

  The ECM server 10 provides the user with a user interface (UI) screen 100 including a display column 120 for a list of managed content groups, accepts selection from the user for the content in the list, and is selected. Operation instructions for received content are accepted. In the example of FIG. 1, the content database in the ECM server 10 has a tree-like directory structure, and the UI screen 100 includes a display column 110 of the directory structure. A list of contents and directories included in the directory (also referred to as a folder) selected in the directory structure display field 110 is displayed in the list display field 120. The operation instruction for the content received by the ECM server 10 includes “take-out” of the content to the portable terminal 50 in addition to conventionally known ones such as downloading the content and changing access right information for the content. is there. “Taking out” is an operation that allows the mobile terminal 50 to browse the content.

  The ECM client 20 is a client program that receives a content management service from the ECM server 10. Although only one ECM client 20 is shown in the figure, the ECM server 10 can provide services to a plurality of ECM clients 20.

  The ECM client 20 is installed in a computer such as a PC or a workstation connected to the ECM server 10 via a data communication network such as a LAN (local area network) or the Internet. The ECM client 20 generates a UI screen 100 as illustrated in FIG. 1 based on information provided from the ECM server 10, detects a user instruction for the UI screen 100, and transmits the UI screen 100 to the ECM server 10. It has a function.

  The conversion server 30 converts the content stored in the ECM server 10 (hereinafter referred to as “PC content”) into data for the mobile terminal 50 (hereinafter referred to as “portable content”). Since the PC content is often in a data format that cannot be handled by the mobile terminal 50 or has a large size that cannot be handled by the memory capacity of the mobile terminal 50, the conversion server 30 can convert the PC content to the mobile terminal 50. Data format and data size can be handled by For example, when the PC content is a file of various office applications such as a word processor or a spreadsheet, the conversion server 30 converts it into a data format that can be handled by the portable terminal 50 such as a PDF (Portable Document File) format. Note that PDF is merely an example, and the data format of the conversion destination may be any data format that can be widely used in the assumed mobile terminal. In addition, when the PC content is photographic image data having a large data size that is assumed to be printed or viewed on a PC screen, the conversion server 30 performs processing for reducing the data amount such as thinning, so that the PC content is processed. The content is converted into image data having a size suitable for the memory capacity or screen size of the portable terminal 50. If the PC content is a moving image content in a data format (for example, MPEG) that is not supported by the portable terminal 50, the conversion server 30 converts the content to a moving image data format (for example, the 3GPP format) supported by the portable terminal 50. Convert.

  The mobile terminal server 40 is a server that provides mobile content to the mobile terminal 50. The mobile terminal server 40 has, for example, a Web server function, accepts a content request from the mobile terminal 50 by HTTP (HyperText Transfer Protocol), and returns a mobile content corresponding to the request. The portable terminal server 40 receives the portable content generated by the conversion server 30 and stores the portable content in the temporary storage repository 45 in preparation for a subsequent request from the portable terminal 50.

  The conversion server 30 and the mobile terminal server 40 are managed by the same organization as the ECM server 10, and communication between them is protected so as not to be recognized from the outside. For example, these servers 10, 30 and 40 may be mounted on the same computer device or may be arranged on a network of the same organization. In the latter case, for example, the ECM server 10 is provided on the intranet of the organization, whereas the mobile terminal server 40 is provided in a DMZ (DeMilitarized Zone), and one of the network interfaces is connected to the intranet and another network interface. Are connected to the Internet respectively. Further, if communication between the servers 10, 30, and 40 is protected by encryption or the like, the servers may be distributed on the Internet.

  The portable terminal 50 is a portable terminal device such as a cellular phone or a PDA, and has a Web client function. In addition, the mobile terminal 50 has a camera and a decoding function of a two-dimensional code (for example, QR code (registered trademark)). The two-dimensional code displayed on the printed matter or the PC screen is read by the camera, and the code represents the code. Data content can be obtained.

  Next, an example of a processing procedure executed by the ECM server 10 will be described with reference to FIG. In this example, when receiving a login request from the ECM client 20 (S1), the ECM server 10 requests the ECM client 20 to input authentication information for user authentication, and is sent from the ECM client 20 in response to the request. User authentication is executed based on the authentication information (S2), and it is determined whether the authentication is successful (S3).

  Here, for example, when the ECM server 10 provides the ECM client 20 with a screen for inputting the user ID and password, and the user inputs his / her user ID and password on the screen and instructs transmission, The password is transmitted to the ECM server 10. If the user ID and password are correct combinations registered in advance, the ECM server 10 determines that the login is from the correct user (authentication success). The user authentication is not limited to password authentication, and any conventionally known authentication method may be used.

  When the user authentication fails, the ECM server 10 executes error processing such as notifying the ECM client 20 of the authentication failure (S4).

  If the user authentication is successful, the ECM server 10 permits the user to log in. When the login is permitted, the ECM server 10, for example, includes information on the user interface screen 100 including a column 110 displaying a directory to which the user has an access right in the directory structure of the content database managed by the server 10. Is generated and provided to the ECM client 20. When the user selects a desired directory in the column 110 of the provided screen 100, the ECM server 10 searches for contents in the selected directory that the user has the access right, and displays each of the search results. Information in a column 120 listing content icons is generated, and the information is provided to the ECM client 20 for display (S5). The ECM client 20 displays the UI screen 100 including the column 120 based on the information. The user selects an operation target content from a list of contents that the user has access rights displayed in the column 120 using an input device such as a pointing device, and further instructs an operation on the selected content. The operations on the content include, for example, browsing and printing of the content, registration of editing results, and changing access right settings. For example, when one content is selected on the list in the column 120, a menu listing operation items that can be selected for the content is displayed, and the user selects a desired operation from the menu. Further, after the user selects and opens one content on the list, an operation item that can be selected for the content may be presented on the screen displaying the content, and the user may select it. When an operation for the content is instructed as described above, the ECM client 20 executes processing for the content in accordance with the instruction (S7).

  Here, in the system of this example, the ECM server 10 can accept an instruction of “take out portable content” operation as an operation on the content, and can execute processing according to the instruction. This instruction is also selected from the operation menu for the content selected on the list display of the ECM client 20 or from the operation menu on the content display screen opened by selecting from the list, as in the above-described operation items. do it.

  When the ECM client 20 instructs “take out portable content” to the PC content displayed on the UI screen 100 ((1) in FIG. 1), the ECM server 10 performs the processing of steps S11 to S14 in FIG. Execute. In this process, the ECM server 10 passes the PC content designated as a take-out target to the conversion server 30 and requests conversion to portable content (S11, (2) in FIG. 1). Since the hardware performance and standard software of mobile terminals in the world are common to some extent, data format requirements for portable content according to such common hardware performance and software are determined in advance and converted. The server 30 may perform content conversion according to the requirements. The data format requirement may be, for example, that an office document file is converted to a PDF file, an image is converted to JPEG data having an image data size of QVGA, and the like. In addition, in order to perform detailed data conversion according to the performance of the mobile terminal of each user, for example, information on the data format corresponding to the mobile terminal of the user is registered in the ECM server 10, and the ECM server 10 The information may be passed to the conversion server 30 to perform conversion according to the data format.

  On the other hand, as shown in FIG. 3, the conversion server 30 having received this request (S21) converts the target PC content into a data format for the portable terminal in accordance with the request (S22). Then, the portable terminal server 40 is requested to register the portable content obtained as a result of the conversion in the temporary storage repository 45 (S23, (3) in FIG. 1).

  Upon receiving this request, the portable terminal server 40 stores the portable content in the temporary storage repository 45 (S31), and generates the URL of the stored portable content (S32). This URL is information used to access the content in the temporary storage repository 45 from the mobile terminal 50, and is associated with the mobile content in the repository 45. Here, a part corresponding to information in the repository 45 (for example, the file name of the content in the repository 45) in the generated URL, such as “http://mobile.example.co.jp/EA3Xz4ro0Z” By using a random character string, it may be difficult for a third party to predict the URL of the content. In this case, the mobile terminal server 40 may store the correspondence between the file name indicated as a random character string and the actual content file in the repository 45. When an access request using the URL comes from the user, the file that is the target of the request may be specified using the correspondence.

  Next, the mobile terminal server 40 notifies the ECM server 10 of the URL generated for the stored mobile content directly or via the conversion server 30 (S33, (4) in FIG. 1).

  Returning to the description of FIG. 2, the ECM server 10 that has received the notification in step S33 acquires the URL of the portable content included in the notification (S12), and a two-dimensional code (for example, a QR code (registration)) representing the URL. Trademark)) is generated (S13). Although the two-dimensional code is illustrated here, the image code is not limited to the two-dimensional code, and other types of image codes that can be recognized by machine reading (for example, a one-dimensional barcode) may be used. This generation may be performed using a conventional technique. Then, the ECM server 10 sends the generated two-dimensional code to the ECM client 20 that made the “take-out” request (S14, (5) in FIG. 1).

  The ECM client 20 displays the two-dimensional code in the code display field 130 of the UI screen 100 based on the information. When the user operating the ECM client 20 captures the two-dimensional code in the code display field 130 with the camera of his / her portable terminal 50 ((6) in FIG. 1), the decoding function in the portable terminal 50 is The dimension code is decoded, and the URL character string represented by the code is obtained. The Web client program of the portable terminal 50 generates an HTTP request for requesting the content represented by the URL, and transmits it to the portable terminal server 40 via the Internet ((7) in FIG. 1).

  As shown in FIG. 3, the portable terminal server 40 waits for an HTTP request from the portable terminal 50 (S41). When the HTTP request is received, the portable content that is the target of the request is retrieved from the repository 45 based on the information (for example, the file path name and the encrypted one) specifying the target content in the request, It transmits to the portable terminal 50 (S42). Through the flow as described above, the user can download and browse the content selected by the ECM client 20 (that he / she has access rights) to the portable terminal 50.

  The mobile terminal server 40 provides mobile content to the mobile terminal 50 and then deletes the content from the repository 45. This deletion may be performed immediately after the provision of the portable content is completed, or may be performed after a predetermined period of time has elapsed after the provision. In any case, since the portable content in the temporary storage repository 45 is open to the Internet, the risk of information leakage to a third party by deleting it when downloaded to a legitimate user Is reduced. In addition, in the case where the user desires to temporarily browse the contents accessible by himself / herself also on the portable terminal 50, there are few problems even with the above-described deletion control. In order to prevent information leakage, an upper limit period for the content storage period in the temporary storage repository 45 is set, and when the upper limit period elapses after the content is stored and not downloaded, the content is deleted. May be.

  In the system described above, the ECM server 10 authenticates the user with the authentication information from the ECM client 20, and accepts a “take-out” request to the mobile terminal for the PC content for which the user has access rights. In response to the request, the ECM client that converted the PC content for the portable terminal and made the two-dimensional code representing the access information (for example, URL) to the portable content obtained by the conversion to take out the ECM client. 20 is displayed. Therefore, the two-dimensional code is provided to the user who has the PC content that is the source of the portable content, and there is little risk of leakage to a third party. In the above-described example, since the portable content downloaded to the portable terminal 50 is deleted from the temporary storage repository 45, the risk of information leakage can be reduced.

  The ECM server 10, the conversion server 30, and the portable terminal server 40 exemplified above are realized by causing a general-purpose computer to execute a program representing the processing of each functional module described above, for example. Here, for example, as shown in FIG. 4, the computer includes, as hardware, a microprocessor such as a CPU 1000, a memory (primary storage) such as a random access memory (RAM) 1002 and a read-only memory (ROM) 1004, an HDD ( HDD controller 1008 that controls (hard disk drive) 1006, various I / O (input / output) interfaces 1010, network interface 1012 that performs control for connection to a network such as a local area network, etc. are connected via bus 1014, for example. Circuit configuration. In addition, for example, a disk drive 1016 for reading from and / or writing to a portable disk recording medium such as a CD or a DVD, a portable memory of various standards such as a flash memory via the I / O interface 1010 is connected to the bus 1014. A memory reader / writer 1018 for reading from and / or writing to the nonvolatile recording medium may be connected. A program in which the processing contents of each functional module exemplified above are described is stored in a fixed storage device such as a hard disk drive via a recording medium such as a CD or DVD, or via a communication means such as a network, and stored in a computer. Installed. The program stored in the fixed storage device is read into the RAM 1002 and executed by a microprocessor such as the CPU 1000, whereby the functional module group exemplified above is realized. Some or all of these functional module groups are used as hardware circuits such as dedicated LSI (Large Scale Integration), ASIC (Application Specific Integrated Circuit), or FPGA (Field Programmable Gate Array). It may be configured.

It is a figure which shows schematic structure of the content provision system of embodiment. It is a flowchart which shows an example of the process sequence which an ECM server performs. It is a flowchart which shows an example of the process sequence which the conversion server and the server for portable terminals perform. It is a figure which shows an example of the hardware constitutions of a computer.

Explanation of symbols

  10 ECM server, 20 ECM client, 30 conversion server, 40 server for mobile terminal, 45 temporary storage repository, 50 mobile terminal.

Claims (3)

A database for storing data for the information processing apparatus;
When an access request for data stored in the database is received from the user who operates the information processing apparatus via the information processing apparatus, the access right of the user for the data is determined, and the determined access right Access control means for permitting access to the data according to the user,
Accepting means for accepting a take-out request from the user to the portable terminal for the data determined that the user has access right through the information processing apparatus;
In response to the take-out request, conversion means for converting the data that is the target of the request into a data format for the mobile terminal;
Temporary storage means for temporarily storing the conversion result data converted by the conversion means;
Access information providing means for generating code information representing access information for accessing the conversion result data stored in the temporary storage means and providing the information to the information processing apparatus;
The conversion result data corresponding to the access information stored in the temporary storage means when a data request using the access information is received from the portable terminal that has read the code information displayed by the information processing apparatus Providing data to the mobile terminal;
A data providing system comprising: Deletion means for deleting the conversion result data from the temporary storage means when provision of the conversion result data stored in the temporary storage means to the portable terminal by the data providing means satisfies a predetermined condition ,
The data providing system according to claim 1, further comprising: Computer
A database for storing data for an information processing device,
When an access request for data stored in the database is received from the user who operates the information processing apparatus via the information processing apparatus, the access right of the user for the data is determined, and the determined access right Access control means for allowing access to the data according to the user,
Accepting means for accepting a take-out request from the user to the portable terminal for the data determined that the user has access right through the information processing apparatus;
A conversion means for converting the data subject to the request into a data format for the portable terminal in response to the take-out request;
Temporary storage means for temporarily storing the conversion result data converted by the conversion means;
Access information providing means for generating code information representing access information for accessing the conversion result data stored in the temporary storage means and providing the information to the information processing apparatus;
The conversion result data corresponding to the access information stored in the temporary storage means when a data request using the access information is received from the portable terminal that has read the code information displayed by the information processing apparatus Providing data to the portable terminal,
Program to function as.