CA2484168A1 - System and method for managing native application data - Google Patents

System and method for managing native application data Download PDF

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Publication number
CA2484168A1
CA2484168A1 CA002484168A CA2484168A CA2484168A1 CA 2484168 A1 CA2484168 A1 CA 2484168A1 CA 002484168 A CA002484168 A CA 002484168A CA 2484168 A CA2484168 A CA 2484168A CA 2484168 A1 CA2484168 A1 CA 2484168A1
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Prior art keywords
data
enterprise
repository
legacy application
database
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Abandoned
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CA002484168A
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French (fr)
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Zaitao Li
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Individual
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Computer Associates Think Inc
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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/20Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
    • G06F16/21Design, administration or maintenance of databases
    • G06F16/214Database migration support
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00Accessing, addressing or allocating within memory systems or architectures
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/20Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
    • G06F16/25Integrating or interfacing systems involving database management systems
    • G06F16/258Data format conversion from or to a database
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S707/00Data processing: database and file management or data structures
    • Y10S707/99931Database or file accessing
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S707/00Data processing: database and file management or data structures
    • Y10S707/99941Database schema or data structure
    • Y10S707/99943Generating database or data structure, e.g. via user interface

Abstract

Methods and systems are disclosed for migrating data between a legacy application data repository and an enterprise database. One exemplary system includes a legacy application data repository (116A), an enterprise database (354), an export module (312) for exporting data from the repository (116A) in an enterprise application compatible format, and a check-in module (352) for updating the enterprise database (354) to reflect the exported data. The exemplary system further includes a check-out module (356) for extracting da ta from the enterprise database (354) and converting the extracted data to an enterprise application compatible format, and an import module (318) for updating the repository (116a) to reflect the checked-out data.

Description

SYSTEM AND METHOD FOR MANAGING NATIVE APPLICATION DATA
Cross-Reference to Related Applications This application claims priority to U.S. Provisional Application entitled "Data Interface Between a Native Desktop Format and an Enterprise Database Server", Serial Number 60/373,779, filed April 19, 2002, which is hereby incorporated by reference in its entirety.
Technical Field The described systems and methods are generally related to enterprise information processing environments. More specifically, the described systems and methods are related to managing data of a legacy desl~top application in an enterprise information processing environment.
Background Enterprises often employ large, complex, computing environments that include a number of enterprise components such as servers, routers, databases, repositories, mainframes, personal computers, business applications and enterprise management software, for example. Such enterprises may include legacy desktop applications which were designed to operate in a limited environment, such as on a single personal computer, for example.
Data managed by a legacy desktop application may be useful to support other business processes or applications within an enterprise, but the data may be unavailable to such other processes or applications due to the closed or proprietary architecture of the legacy desl~top application.
Typically, data from a legacy desktop application is stored in a native format which may not be easily accessible by an enterprise application. In instances where the data from a desktop legacy application is not accessible by other applications and/or processes within the enterprise, a database server on a network may be utilized to make the data accessible to such other applications andlor processes. However, when transforming such legacy deslctop applications into enterprise-compatible applications often, a majority of the data layer andlor a majority of the application may need to be rewritten. In extreme iilstances, the application may have to be redesigned from scratch. Such changes can involve a significant development effort, and may be undesirable due to backward compatibilities associated with the new requirements of online operation of desktop applications.
The prior art systems and methods for managing native application data are not sufficient to enable businesses efficiently to make use of legacy deslctop application data.
Specifically, there is not presently a method or system that enables enterprise access to native legacy desktop application data without affecting the data layer and/or native format of the data. Further, current solutions to the problems of making native application data available to other applications and/or processes within an enterprise are time consuming, require significant redevelopment of the legacy application, and/or cannot be reused and threaten the baclcward compatibility of the legacy application.
Summary The following presents a simplified summary of methods and systems associated with managing native application data in an enterprise processing environment. This sunnnary is not an extensive overview and is not intended to identify key or critical elements of the methods and/or systems or to delineate the scope of the methods and systems media. It conceptually identifies the methods and systems in a simplified form as a prelude to the more detailed description that is presented later.
In accordance with one aspect of the present application, an exemplary method is disclosed for migrating data from a legacy application data repository to an enterprise database. The method includes extracting a first set of data in a native format from a legacy application data repository. The method also includes processing the first set of data to generate a second set of data in an enterprise application compatible format.
The second set of data is transmitted to a database server, and an enterprise database is updated based on the second set of data.
In accordance with another aspect of the present application, a second exemplary method is disclosed for migrating data from an enterprise database to a legacy application data repository. The second method includes extracting a first set of data from an enterprise database, and processing the first set of data to generate a second set of data in an enterprise application compatible format. The second method further includes transmitting the second set of data to a remote computer, and updating a legacy application data repository based on the second set of data.
In accordance with yet another aspect of the present application, an exemplary system is disclosed for migrating data between a legacy application data repository and an enterprise database. The system includes a legacy application data repository containing data in a native format, and an enterprise database. The system also includes an export module operative to extract a first set of data from the repository in the native format, process the first set of data to generate a second set of data in an enterprise application compatible format, and output the second set of data. The system further includes a check-in module operative to update the enterprise database based on the second set of data.
W addition, the system includes a checlc-out module operative to extract a first set of checlced-out data from the enterprise database, process the first set of checked-out data to generate a second set of checked-out data in an enterprise application compatible format,and output the second set of checked-out data. An import module is also included in the system.
The import module is operative to update the legacy application data repository based on the second set of checked-out data.
Certain illustrative aspects of the methods and systems are described herein in connection with the following description and the annexed drawings. These aspects are indicative, however, of but a few of the various ways in which the principles of the methods, systems, and media may be employed and thus the examples are intended to include such aspects and equivalents. Other advantages and novel features may become apparent from the following detailed description when considered in conjunction with the drawings.
Brief Description of the Drawings For a more complete understanding of the present methods and systems, reference is now made to the following description taken in conjunction with the accompanying drawings in which like reference numbers indicate like features and wherein:
Figure 1 is a block diagram illustrating an example personal computing environment with which example described systems and methods can interact;
Figure 2 is a block diagram illustrating the example personal computing environment of Figure 1 processing an example legacy application;
Figure 3 is a block diagram illustrating an example enterprise architecture compatible with the methods and systems of the present application;
Figure 4 is a block diagram illustrating the data flow of an example migration of data between a legacy desktop application and an enterprise database;
Figure 5 is a flow chart illustrating an example methodology for migrating legacy application data from a legacy application data repository to an enterprise database; and Figure 6 is a flow chart illustrating an example methodology for migrating legacy application data from an enterprise database to a legacy application data repository.
Detailed Description Example methods and systems are now described with reference to the drawings, where like reference numerals are used to refer to like elements throughout.
In the following description, for purposes of explanation, numerous specific details are set forth in order to facilitate thoroughly understanding the methods and systems. It may be evident, however, that the methods and systems can be practiced without these specific details.
In other instances, well-known structures and devices are showxn in block diagram form in order to simplify the description.
Figure 1 illustrates an example computer 100 that includes a processor 102, a memory 104, a disk 106, input/output ports 110, and a network interface 112 operably connected by a bus 108. Executable components of the systems described herein may be located on a computer like computer 100. Similarly, computer executable methods described herein may be performed on a computer like computer 100. Furthermore, legacy deslctop applications designed to access associated data in a native format may reside on a computer like computer 100 and/or be processed by a computer like computer 100. It is to be appreciated that other computers may also be employed with the systems and methods described herein.
The processor 102 can be any of various processors including dual microprocessor and other multi-processor architectures. The memory 104 can include volatile memory and/or non-volatile memory. The non-volatile memory can include, but is not limited to, read only memory (ROM), programmable read only memory (PROM), electrically programmable read only memory (EPROM), electrically erasable programmable read only memory (EEPROM), and the like. Volatile memory can include, for example, random access memory (RAM), synchronous RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM
(SDRAM), double data rate SDRAM (DDR SDRAM), and direct RAM bus RAM
(DRRAM). The disk 106 can include, but is not limited to, devices like a magnetic disk drive, a floppy disk drive, a tape drive, a Zip drive, a flash memory card, and/or a memory stick. Furthermore, the disk 106 cam include optical drives like a compact disk ROM (CD-ROM), a CD recordable drive (CD-R drive), a CD rewriteable drive (CD-RW drive) and/or a digital versatile ROM drive (DVD ROM). The memory 104 can store processes 114 and/or data 116, for example. The disk 106 and/or memory 104 can store an operating system that controls and allocates resources of the computer 100.
The bus 108 can be a single internal bus intercomzect architecture and/or other bus architectures. The bus 108 can be of a variety of types including, but not limited to, a memory bus or memory controller, a peripheral bus or external bus, and/or a local bus. The local bus can be of varieties including, but not limited to, an industrial standard architecture (ISA) bus, a microchannel architecture (MSA) bus, an extended ISA (EISA) bus, a peripheral component interconnect (PCI) bus, a universal serial (USB) bus, and a small computer systems interface (SCSI) bus.
The computer 100 interacts with input/output devices 118 via input/output ports 110.
The input/output devices 118 can include, but are not limited to, a keyboard, a microphone, a pointing and selection device, cameras, video cards, displays, and the like.
The input/output ports 110 can include but are not limited to, serial ports, parallel ports, and USB ports.
The computer 100 can operate in a network environment and thus is connected to a network 120 by a network interface 112. Through the network 120, the computer 100 may be logically connected to a remote computer 122. The remote computer 12 may serve as an enterprise server including one or more enterprise database. The network 120 includes, but is not limited to, local area networks (LAN), wide area networks (WAN), and other networks.
The networlc interface 112 can connect to local area network technologies including, but not limited to, fiber distributed data interface (FDDI), copper distributed data interface (CDDI), ethernet/IEEE 802.3, token ring/IEEE 802.5, wireless/IEEE 802.11 and the like.
Similarly, the network interface 112 can connect to wide area network technologies including, but not limited to, point to point links, and circuit switching networks like integrated services digital networks (ISDN), packet switching networks, and digital subscriber lines (DSL).
Figure 2 illustrates the computer 100 executing processing instructions for a legacy desktop application 114A. The memory 104 of the computer 100 includes, at least a portion of the legacy application processing instructions 114A. The legacy desktop application 114A
is designed to utilize locally stored legacy application data in repository 116A. The legacy application data of repository 116A may be in a native format which is not supported by or compatible with other applications in the native format. The memory 104 may include other processing instructions and/or other data, and the dislc 106 may store more than the repository 116A.
Figure 3 illustrates an example enterprise environment 300 which includes computer 100, computer 330 and enterprise server 350. As illustrated in Figure 2, computer 100 includes legacy application 114A and legacy application data repository 116A.
Computer 100 fiuther includes an export module 312 and an import module 318 for processing the application data 116A. When they are not in use, export module 312 and import module 318 may be stored locally on disk 106 or on a storage device remotely accessible by computer 100. During processing, the relevant module instructions may reside in the memory 114 of computer 100.
Like computer 100, computer 330 also includes instances of the legacy application 334, legacy application data repository 336, export module 332 and import module 338.
Export module instances 312 and 332 extract at least a portion of repositories 116A and 336, respectively, in the native format, convert the data into an enterprise compatible format and transmits the data in the enterprise compatible format to a check-in module 352. Check-in module 352 receives the data in the enterprise compatible format and updates enterprise database 354 accordingly. Enterprise database 354 stores the legacy application data in a format compatible with other enterprise applications. According to one embodiment, enterprise database 354 is a relational database, but other types of databases may be employed.
Enterprise database 354 is accessible by check-out module 356. Check-out module 356 is responsible for handling requests for application data stored in the enterprise database 354. Check out module 356 extracts requested data from the enterprise database 356 and may convert it into an enterprise compatible format. The extracted and converted data is transmitted to a requesting import module instance, such as import module 338, for example.
The import module instance 338 receives the extracted data in the enterprise application compatible format, converts the data into the native application format and updates the local application data repository 336 to reflect the received data.
Figure 4 is a block diagram illustrating the data flow of an example migration of data between legacy application repository 116A and enterprise database 354. Figure 4 further illustrates the format of the data transferred between the modules of the example system. The system of Figure 4 enables a legacy desktop application such as legacy application 114A to continue to operate in its native data format. Read or write access to the enterprise database 354 of enterprise database server 350 may be accomplished through a batch operation.
As shown, legacy application 114A accesses, processes and/or updates legacy application data in repository 116A in a native format on computer 100. In order to effect a migration of application data from repository 116A to enterprise database 354, export module 312 extracts data from repository 116A in the native format and converts the extracted data into a format that is compatible with other enterprise processes and applications, such as extensible marls-up language ("XML") format, for example. The extracted data in XML
format is transmitted to check-in module 352 which is responsible for updating enterprise database 354 to reflect the extt~acted data. Check-in module 352 may convert the extracted data from the enterprise compatible format, such as XML, into a specific format of the enterprise database 354.
In order to effect a migration of data from enterprise database 354 to repository 116A, check-out module 351 extracts data from enterprise database 354 in the format of the enterprise database 354 and converts the extracted data into a format that is compatible with other enterprise processes and applications, such as XML format, for example.
The extracted data in XML format is transmitted to import module 318 which is responsible for updating repository 116A to reflect the extracted data. Import module 318 converts the extracted data from the enterprise compatible format, such as XML, into the native format of the legacy application data repository 116A, and updates repository 116A accordingly.
Figure 5 illustrates an example methodology 500 for migrating data from a legacy application data repository, such as repository 116A, to a database, such as enterprise database 354. At block 505, data is extracted from a repository such as repository 116A. The extracted data may represent all of the data stored in the repository, or it may represent a selection of a certain portion of all of the data stored in the repository.
The selection and identification of the data to be extracted may be accomplished according to any method know to one of ordinary skill in the art, and may include a selection of certain records and/or certain fields.
At block 510, the extracted data is converted into a format compatible with other enterprise applications. One example of such an enterprise application compatible format is XML. The converted data may be stored in a text file. The conversion of the data effectively flattens the application's data, and enables the data to be more efficiently analyzed by data comparison functions or utilities.
At block 515, the converted data is then uploaded to a database server. A
server "Check In" routine then updates the enterprise database based on the contents of the XML
file (520). The Check-In routine determines whether the extracted data had been generated previously by an earlier executed "Check Out" routine (525), described in greater detail with reference to Figure 6. The Check Out routine may be part of a server application that reads the enterprise database and converts data to the same format as the Check In process.
If the uploaded data represents something that had not been generated by an earlier executed Checlc-Out routine, no comparison is made, and the data is inserted into the enterprise database (530). If the extracted data had been generated by an earlier executed Check-Out routine, the Check 111 routine compares the extracted data with the contents of the enterprise database and updates the enterprise database accordingly (535).
Once the data is stored in the enterprise database, it is readily accessible by other instances of the legacy application. To use the data with a second instance of the legacy application, the data may be migrated from the enterprise database to a legacy application data repository used by the second instance of the legacy application.
Figure 6 illustrates an example methodology 600 for migrating data from a database, such as enterprise database 354, to a repository, such as repository 116A. At block 605, a request is received to extract data from the enterprise database. The request may include selection criteria identify certain data, records and/or fields to be extracted from the database.
At block 610, the requested data is identified and extracted from the database.
At block 615, the extracted data is converted into a format compatible with other enterprise applications such as XML, for example. As in methodology 500, the converted data may be stored in a text file, effectively flattening the application's data.
At block 620, the converted data is then downloaded onto a computer, such as computer 100. An import routine is executed at block 625 that updates the legacy application data repository based on the contents of the XML file. According to one embodiment, the import routine generates a legacy application data repository containing only the data extracted from the enterprise database.
In an alternate embodiment, the import routine may determine whether the data to be imported had been generated previously exported by an earlier executed export routine. If the imported data had not been generated by an earlier executed export routine, the extracted data may be inserted into the enterprise database, otherwise the import routine compares the data to be imported with the contents of the legacy application data repository and updates the repository accordingly.
There are numerous benefits associated with the described methods and systems.
Specifically, the described methods and systems require minimal change for the legacy application. If any change is require, an import/export functionality between a native format and an enterprise application compatible format is the change implemented. In addition, the described methods and systems support backward compatibilities of the legacy application.
Few, if any, changes are required of the native format of the deslctop application, which makes it possible for any existing application data to be used in the future.
In addition, the asynchronous nature of the described methods enable the legacy application to be used offline. It may also improve performa~zce because the Check In and Check Out routines may be batch operations running on a server computer.
What has been described above includes several examples. It is, of course, not possible to describe every conceivable combination of components or methodologies for purposes of describing the systems, methods, and computer readable media associated with managing legacy application data. However, one of ordinary shill in the art may recognize that further combinations and permutations are possible. Accordingly, this application is intended to embrace such alterations, modifications, and variations that fall within the scope of the appended claims. Furthermore, to the extent that the term "includes" is employed in the detailed description or the claims, such term is intended to be inclusive in a manner similar to the term "comprising" as that term is interpreted when employed as a transitional word in a claim.

Claims (17)

Claims What is claimed is:
1. A method for migrating data from a legacy application data repository to an enterprise database, comprising:
extracting a first set of data in a native format from a legacy application data repository;
processing the first set of data to generate a second set of data in an enterprise application compatible format;
transmitting the second set of data to a database server; and updating an enterprise database based on the second set of data.
2. The method of claim 1, wherein the enterprise application compatible format is an extensible markup language format.
3. The method of claim 1, wherein extracting includes identifying at least a portion of the data of the legacy application data repository to be extracted.
4. The method of claim 3, wherein the first set of data is the identified portion of the data of the legacy application data repository.
5. The method of claim 1, wherein updating includes:
determining that the second set of data represents data which was previously checked out from the enterprise database;
comparing the second set of data to data in the enterprise database; and replacing a portion of the data in the enterprise data base with the second set of data.
6. The method of claim 1, wherein the enterprise database is a relational database.
7. A method for migrating data from an enterprise database to a legacy application data repository, comprising:
extracting a first set of data from an enterprise database;
processing the first set of data to generate a second set of data in an enterprise application compatible format;

transmitting the second set of data to a remote computer; and updating a legacy application data repository based on the second set of data.
8. The method of claim 7, wherein the enterprise application compatible format is an extensible markup language format.
9. The method of claim 7, wherein updating the legacy application data repository includes adding a record based on the second set of data.
10. The method of claim 7, wherein updating the legacy application data repository includes:
comparing the second set of data to the contents of the legacy application data repository; and replacing a portion of the legacy application data repository with the second set of data.
11. The method of claim 7, wherein the enterprise database is a relational database.
12. A system for migrating data between a legacy application data repository and an enterprise database, comprising:
a legacy application data repository containing data in a native format;
an enterprise database;
an export module operative to:
extract a first set of data from the repository in the native format;
process the first set of data to generate a second set of data in an enterprise application compatible format; and output the second set of data;
a check-in module operative to update the enterprise database based on the second set of data;
a check-out module operative to:
extract a first set of checked-out data from the enterprise database;
process the first set of checked-out data to generate a second set of checked-out data in an enterprise application compatible format; and output the second set of checked-out data; and an import module operative to update the legacy application data repository based on the second set of checked-out data.
13. The system of claim 12, wherein the enterprise application compatible format is an extensible markup language format.
14. The system of claim 12, wherein the export module is further operative to identify at least a portion of the data of the legacy application data repository to be extracted.
15. The system of claim 12, wherein the check-in module is further operative to:
determine that the second set of data was previously checked out from the enterprise database;
compare the second set of data to data in the enterprise database; and replace a portion of the data in the enterprise database with the second set of data.
16. The system of claim 12, wherein the import module is further operative to add a record based on the second set of checked-out data.
17. The system of claim 12, wherein the import module is further operative to:
compare the second set of checked-out data to the contents of the legacy application data repository; and replace a portion of the legacy application data repository with the second set of check-ed out data.
CA002484168A 2002-04-19 2003-04-21 System and method for managing native application data Abandoned CA2484168A1 (en)

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US37377902P 2002-04-19 2002-04-19
US60/373,779 2002-04-19
PCT/US2003/012322 WO2003090092A1 (en) 2002-04-19 2003-04-21 System and method for managing native application data

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AU (1) AU2003221743A1 (en)
BR (1) BR0309384A (en)
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CN1656457A (en) 2005-08-17
WO2003090092A1 (en) 2003-10-30
EP1499981A1 (en) 2005-01-26
US20040010521A1 (en) 2004-01-15
AU2003221743A1 (en) 2003-11-03
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