USRE40576E1 - Point-of-sale system including isolation layer between client and server software - Google Patents
Point-of-sale system including isolation layer between client and server software Download PDFInfo
- Publication number
- USRE40576E1 USRE40576E1 US10/171,366 US17136602A USRE40576E US RE40576 E1 USRE40576 E1 US RE40576E1 US 17136602 A US17136602 A US 17136602A US RE40576 E USRE40576 E US RE40576E
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- software application
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- server
- computer system
- isolation layer
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- Expired - Lifetime
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- 238000002955 isolation Methods 0.000 title claims abstract description 109
- 238000000034 method Methods 0.000 claims abstract description 38
- 238000004891 communication Methods 0.000 claims abstract description 31
- 238000012546 transfer Methods 0.000 claims abstract description 8
- 238000013519 translation Methods 0.000 claims description 37
- 230000014616 translation Effects 0.000 claims description 37
- 238000013507 mapping Methods 0.000 claims description 17
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- 238000009434 installation Methods 0.000 claims 2
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Images
Classifications
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07G—REGISTERING THE RECEIPT OF CASH, VALUABLES, OR TOKENS
- G07G1/00—Cash registers
- G07G1/12—Cash registers electronically operated
- G07G1/14—Systems including one or more distant stations co-operating with a central processing unit
- G07G1/145—PLU-management
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q20/00—Payment architectures, schemes or protocols
- G06Q20/08—Payment architectures
- G06Q20/20—Point-of-sale [POS] network systems
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q20/00—Payment architectures, schemes or protocols
- G06Q20/08—Payment architectures
- G06Q20/20—Point-of-sale [POS] network systems
- G06Q20/202—Interconnection or interaction of plural electronic cash registers [ECR] or to host computer, e.g. network details, transfer of information from host to ECR or from ECR to ECR
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q20/00—Payment architectures, schemes or protocols
- G06Q20/08—Payment architectures
- G06Q20/20—Point-of-sale [POS] network systems
- G06Q20/204—Point-of-sale [POS] network systems comprising interface for record bearing medium or carrier for electronic funds transfer or payment credit
Definitions
- the present invention relates to point-of-sale (POS) systems, and more specifically to a POS system including an isolation layer between POS server software and a client POS application program.
- POS point-of-sale
- POS systems typically include a central server and a plurality of checkout terminals connected through a client-server network.
- the checkout terminals include bar code readers and keyboards for entry of the item numbers during a transaction.
- the central server stores a price look-up (PLU) file which associates item numbers with item prices.
- the central server processes requests from the checkout terminals for price information for the items.
- the central server may perform additional tasks, such as storing transaction history (audit log and transaction totals history), storing accountability totals, storing cashier and terminal accountability totals, holding future price change information (batches), performing credit authorization, performing check validation, and performing frequent shopper validation and specials.
- POS checkout software has traditionally included client and server software that have been developed together and sold as a single proprietary product.
- this solution may not be an optimal one for a retailer. Retailers may find that combining server software from one developer with client software from another developer gives their POS systems the features that they want. This may be especially true for retailers that want the best solutions for both the server and client software in a market where no one developer of proprietary POS software exceeds at both.
- POS system including an isolation layer between the POS server software and the POS client application software to enable server and client software from different developers to be combined.
- a POS system including an isolation layer between POS server software and a client POS application program is provided.
- a system and method of transferring information between a first software application and a second software application which employ an isolation layer includes a client computer system provided by a first seller of computer systems, including a client software application, and a server computer system provided by a second seller of computer systems different from the first seller of computer systems, including a server software application which provides information from the server computer system to the client computer system.
- the system additionally includes isolation layer software, either at the client computer system or at the server computer system, which facilitates communication between the client software application and the server software application to transfer the information.
- the method includes the steps of providing the first software application by a first computer, providing the second software application by a second company different from the first company, executing the first software application by a first computer, executing the second software application by a second computer different from the first computer, providing an isolation layer having hooks into the second software application, executing the isolation layer, and establishing communication between the first software application and the second software application by the isolation layer to transfer the information.
- FIG. 1 is a block diagram of a transaction management system
- FIG. 2 is a block diagram illustrating the client POS software, server POS software, and the isolation layer between them;
- FIG. 3 is a block diagram of a system for producing the isolation layer
- FIG. 4 is a flow diagram illustrating how the isolation layer is created.
- FIG. 5 is a flow diagram illustrating operation of a system specific application and, in particular, a method of transferring information from the system specific application to the client POS software through the isolation layer.
- transaction system 10 preferably includes host computer system 12 and point-of-service (POS) terminal 22 A and 22 B.
- Host computer system 12 and point-of-service (POS) terminals 22 A and 22 B are coupled together to form a network.
- POS terminals 22 A and 22 B execute independent applications 23 A and 23 B, including client POS software 24 A and 24 B for completing transactions.
- POS software 24 A and 24 B may be identical (e.g. the same application from the same developer) or may be different transaction processing applications.
- independent applications 23 A were developed by a different developer than the developer of server POS software 16 .
- independent applications 23 A require isolation layer 14 to communication with POS server software 16 .
- independent applications 23 B were developed by the same developer as the developer of POS server software 16 .
- independent applications 23 B do not require isolation layer 14 to communication with server POS software 16 .
- the present invention is capable of connecting a plurality of independent applications 23 A running on a plurality of different client terminals from different developers to server POS software 16 .
- Client POS software 24 A and 24 B display transaction information on displays 27 A, 27 B.
- Client POS software 24 A and 24 B receive article identification information from bar code readers 26 A, 26 B and keyboards 28 A, 28 B.
- Client POS software 24 A and 24 B send the article identification information to host computer system 12 .
- Host computer system 12 reads price look-up (PLU) file 20 to obtain price information and sends the price information to POS terminals 26 A and 26 B.
- PLU price look-up
- independent applications 17 include price checking software for consumer price checking computers, weighing software for electronic scales, price checking software and item description label printing software for hand-held terminals, and EPL auditing software.
- POS server software 16 processes requests from independent applications 23 A and 23 B.
- POS server software 16 includes system specific applications 17 , such as price look-up (PLU) file software 40 , transaction totals software 42 , cashier authentication software 44 , and credit checking software 46 . These are but examples of system specific software in use today. The present invention anticipates other types of system specific software 17 as well.
- PLU price look-up
- Isolation layer 14 provides translation services between independent applications 23 A and server POS software 16 .
- isolation layer 14 allows client POS software 24 A from one developer to function with system specific applications 17 from a different developer.
- Isolation layer 14 may reside in host computer system 12 or client terminal 22 A.
- client terminals 22 A also provides independent applications 23 A
- server POS software 16 a provider of host computer system 12 also provides server POS software 16 .
- the provider of client terminals 22 A may wish to write and store isolation layer 14 in client terminals 22 A.
- Isolation layer 14 preferably includes one library file for all system specific applications 17 or individual library files for system specific applications 17 . Use of multiple libraries adds network design flexibility but penalizes operation by loading each library into memory, even if only part of isolation layer 14 is used. Isolation layer 14 may take other forms including a single application, a single driver, or multiple drivers that perform read operations into server POS software 16 in order to obtain and map information to be used by client POS software 24 A. Theses drivers also perform writes into server POS software 16 may information created by client POS software 24 A.
- Storage medium 18 stores PLU file 20 and other information files and is preferably a fixed disk drive.
- FIG. 2 the software architecture within system 10 is described in more detail. Discussion references client POS software 24 A, but other independent applications 23 A operate in a similar fashion.
- Client POS software 24 A includes POS checkout application software 30 and interprocess communications (IPC) software 32 .
- POS checkout software 30 records items by scanning them, prints them on a receipt, and adds their prices to produce a total transaction amount.
- POS checkout software 30 also performs specific transaction-related functions, such as processing food stamps and other forms of payment under government entitlement programs, calculating service charges, performing price change functions, performing out of transaction functions (loans, pickups), etc.
- An example of POS checkout software 30 is the UNITY® checkout application developed and sod by the Assignee of the present invention.
- IPC software 32 is software that is added to POS checkout software 30 to facilitate interprocess communications (IPC) between POS checkout software 30 and isolation layer 14 .
- IPC software 32 will vary with operating system, from threads, queues, named pipes, shared files, sockets, etc.
- Isolation layer 14 includes read/write engine and translation layer 34 and read/write layer 36 .
- Read/write engine and translation layer 34 translates one request into one or more read/write requests as needed for host computer system 12 based on standard server inputs and custom outputs.
- Read/write layer 36 performs the actual reads and writes to host computer system 12 based on the requests issued in read/write engine and translation layer 34 .
- read/write layer 36 is the UNITY® file service layer.
- Server POS software 16 may include both the UNITY® file service layer and the UNIX® file system.
- client POS software communicates directly with POS server software through a communication methodology, such as named pipes.
- client POS software 24 A is modified to include IPC software 32 , and an isolation layer 14 is added. Communication between client POS software 24 A and POS server software 16 occurs between IPC software and isolation layer 14 .
- isolation layer 14 the components that are used to construct isolation layer 14 include templates 60 , object code 62 , example mappings and translations 64 , target routines 66 , and make files 68 for each of system-specific applications 17 .
- Templates 60 are a super set of example mappings and translations 64 and target routines 66 .
- Isolation layer 14 includes templates 60 for each of system specific application 17 .
- Example mappings and translations 64 and target routines 66 are edited and customized by developers to produce customized mappings and translations 65 and customized target routines 67 (customized templates 61 ).
- Customized mappings and translations 65 and customized target routines 67 along with object code 62 are fed into make files 68 in order to produce executable code for isolation layer 14 .
- Object code 62 consists of libraries 41 for each of system specific applications 17 .
- isolation layer 14 may include one library for establishing communication for all system specific applications 17 or a plurality of separate libraries.
- Example mappings and translations 64 provide non-displayable information (in code and/or in documentation) and may be edited to customize isolation layer 14 .
- Target routines 66 are system specific application routines that may be edited and customized to suit the needs of the target transaction establishment.
- Make files 68 are files that pass source code (templates 60 ) through compiler 72 and then pass object code 62 through linker 74 to produce the target executable.
- the method of creating isolation layer 14 begins with START 80 .
- step 82 independent applications 23 A are isolated from system specific applications 17 through a non-displayable mapping determination and translation process.
- Example mappings and translations 64 result.
- a template 60 for one of system specific applications 17 is provided. Template 60 is packaged in an installable format that can then be distributed and installed on the target system.
- step 86 customized mappings and translations 65 and customized target routines 67 are determined.
- customized template 61 is produced by changing template 60 to reflect customized mappings and translations 65 .
- step 88 functions to be implemented are edited.
- the “read first”, “read next”, and “read specific” sections are edited.
- the “read first” section is a routine that must be completed/customized to read the first PLU in PLU file 20 .
- the “read next” section is a routine that must be completed/customized to read the next PLU in PLU file 20 sequentially.
- the “read specific” section is a routine that must be completed/customized to read a specific PLU file record.
- step 90 customized mapping and translations 65 and customized target routines 67 derived from step 86 are applied to template 60 .
- step 92 operation returns to step 84 if library functionality for an additional specific application 17 must be added. Otherwise, operation continues to step 94 .
- step 94 a new executable (isolation layer 14 ) is complied and linked from object code 62 and templates 61 for each of system specific applications 17 using make files 68 , compiler 72 , and linker 74 .
- step 96 the method ends.
- operation of a system specific application 17 is illustrated in detail, beginning with START 100 .
- operation illustrates a method of transferring information between a terminal 22 A and host computer system 12 through isolation layer 14 .
- step 102 a system specific application 17 starts up and configures itself.
- step 104 system specific application 17 waits for an interprocess communications message from isolation layer 14 .
- Interprocess communication services e.g., “queues” for UNIX, threads or pipes for OS/2) are provided by the operating system executed by host computer system 12 .
- Isolation layer 14 calls on the operating system to send a request from client POS software 24 A to system specific application 17 .
- Client POS software 24 A issues a call to isolation layer 14 , instructing isolation layer 14 to perform a routine provided by isolation layer 14 and related to the purpose of system specific application 17 .
- system specific application 17 is PLU file reader software 40
- the routine would be a “read direct” routine within isolation layer 14 .
- Isolation layer 14 calls on the operating system to send the interprocess communications message to system specific application 17 .
- system specific application 17 determines whether the interprocess communications message contains an “exit” command in step 105 . If it does, system specific application 17 terminates in step 116 .
- system specific application 17 obtains the information from its source in step 106 .
- system specific application 17 is PLU file reader software 40
- system specific application 17 uses operating system 52 to obtain the information from PLU file 20 .
- step 114 system specific application 17 calls on the operating system to return the information via interprocess communications to the client POS software 24 A via isolation layer 14 .
- System specific application 17 returns to a waiting state in step 104 .
- isolation layer 14 passes the information to client POS software 24 A.
- Client POS software application 24 A can then display the information, compare the information, or otherwise examine the information in accordance with the functions of client POS software 24 A.
Abstract
Description
Claims (34)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/171,366 USRE40576E1 (en) | 1997-10-14 | 2002-06-12 | Point-of-sale system including isolation layer between client and server software |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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US08/949,410 US5987426A (en) | 1997-10-14 | 1997-10-14 | Point-of-sale system including isolation layer between client and server software |
US10/171,366 USRE40576E1 (en) | 1997-10-14 | 2002-06-12 | Point-of-sale system including isolation layer between client and server software |
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US08/949,410 Reissue US5987426A (en) | 1997-10-14 | 1997-10-14 | Point-of-sale system including isolation layer between client and server software |
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USRE40576E1 true USRE40576E1 (en) | 2008-11-18 |
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US10/171,366 Expired - Lifetime USRE40576E1 (en) | 1997-10-14 | 2002-06-12 | Point-of-sale system including isolation layer between client and server software |
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US08/949,410 Ceased US5987426A (en) | 1997-10-14 | 1997-10-14 | Point-of-sale system including isolation layer between client and server software |
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EP (1) | EP0910030A3 (en) |
JP (1) | JPH11191169A (en) |
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CA (1) | CA2246171C (en) |
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1998
- 1998-08-31 CA CA002246171A patent/CA2246171C/en not_active Expired - Lifetime
- 1998-09-11 EP EP98307374A patent/EP0910030A3/en not_active Withdrawn
- 1998-09-14 NZ NZ331887A patent/NZ331887A/en unknown
- 1998-09-16 ZA ZA9808464A patent/ZA988464B/en unknown
- 1998-09-21 AU AU86123/98A patent/AU8612398A/en not_active Abandoned
- 1998-09-25 JP JP27216298A patent/JPH11191169A/en active Pending
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- 2002-06-12 US US10/171,366 patent/USRE40576E1/en not_active Expired - Lifetime
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US7970722B1 (en) | 1999-11-08 | 2011-06-28 | Aloft Media, Llc | System, method and computer program product for a collaborative decision platform |
US8005777B1 (en) | 1999-11-08 | 2011-08-23 | Aloft Media, Llc | System, method and computer program product for a collaborative decision platform |
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Also Published As
Publication number | Publication date |
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ZA988464B (en) | 2000-03-22 |
EP0910030A3 (en) | 2001-02-14 |
NZ331887A (en) | 2000-09-29 |
CA2246171A1 (en) | 1999-04-14 |
US5987426A (en) | 1999-11-16 |
CA2246171C (en) | 2000-09-26 |
AU8612398A (en) | 1999-05-06 |
EP0910030A2 (en) | 1999-04-21 |
JPH11191169A (en) | 1999-07-13 |
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