Pre-ticket travel reservation record keeping system
BACKGROUND OF THE INVENTION 
     This invention pertains to the art of travel record keeping systems, and more particularly to apparatus and control systems for retrieving and organizing travel reservation data. The invention is specifically applicable to retrieving and organizing pre-travel data for comparison use by corporate clients. The record keeping system apparatus may be implemented through use of a modified general purpose computer such as an IBM PC and will be described with particular reference thereto. It will be appreciated, though, that the invention has broader applications such as the ability to monitor company travel plans prior to the travel occurring to ensure that corporate employees use available discounts whenever possible without altering the service quality. Corporate travel policy compliance and contract compliance, indicated by system exception codes are also areas of application of the instant system. Corporate travel expenses may therefore be managed pro-actively, based on accurate pre-travel information. 
     In general, &#34;pre-travel&#34; includes the period between reservation initiation,through ticketing, and up to the actual departure time of the traveler. 
     The recent increase in the cost of business travel has forced many companies to focus on cost savings techniques for reducing the travel expense component of doing business. In general, travel expenses represent the third largest administrative expense within a corporation. Expense reductions in travel fall directly to the corporate bottom line, especially in situations where the same travel is received for less cost. 
     Lately, the travel industry has become highly competitive, characterized by airline deregulation and over-capacity. This situation offers numerous opportunities for companies to reduce costs, often while improving the quality of travel service to its travelling employees provided some action is taken before the actual travel takes place. Several keys have been identified for controlling company travel costs and improving travel quality including: monitoring company travel plans prior to the travel occurring and ensuring whenever possible, that employees use available discounts without altering the service quality; negotiating sustainable discounts and service upgrades with the appropriate travel vendors; and, managing corporate travel expenses pro-actively based upon accurate pre-travel information. 
     The importance of monitoring the company travel plans prior to the travel occurring is pivotal for insured use of available discounts without altering the service quality or, in the alternative, service level upgrades. In general, once ticketed, the opportunity for discounts and cost control is lost, although upgrades can occur until departure. 
     In the past, only historical travel reports were available, charting post-ticket itineraries. Alternately, a tedious procedure of manual sorting of pre-travel information was also used with limited success. As the number of persons at any given time increases, along with constant fare, schedule, and itinerary changes, the time constraints imposed by the manual methods rendered those schemes impractical and virtually useless. 
     It has, therefore, been deemed desirable to provide an automated economical solution that meets the needs of corporations with a substantial travel expense component. 
     SUMMARY OF THE INVENTION 
     The present invention contemplates a new and improved pre-ticket travel reservation record keeping system and apparatus which overcomes the above referenced problems and provides a corporation with the ability to receive and logically arrange pre-travel information on a daily basis. 
     According to the present invention, a serial input/output port communicates pre-travel data from a remote source to a relational database control through a serial interface control. 
     According to a more limited aspect of the invention, the system includes a plurality of files and databases integrated through the serial interface control and a relational database control. A means for inputting the pre-travel data from one or more customer airline computer reservation systems and into a raw data file is provided, another control means converts the raw data file into a machine readable transfer file suitable for input by the single common relational database control. 
     According to another aspect of the invention, an input command control procedure inputs the data contained within the transfer file into the relational database control through a series of validation procedures to ensure data integrity. 
     According to yet another aspect of the invention, the relational database control comprises a plurality of databases including current tables of the data downloaded daily from the customer reservation systems, and historical tables comprising a history of pre-travel data received and stored at an earlier time. 
     According to still another aspect of the invention, information from an airline back office accounting system is downloaded into a relational database for efficient and accurate bookkeeping. 
     A primary advantage of the invention resides in the ability to efficiently receive and interpret pre-travel data in a logical manner to take advantage of available discounts and service level upgrades, where possible. 
     Another advantage of the invention is found in the convenient reporting of the pre-travel itinerary for verification of resource coordination presented to corporate personnel while traveling. 
     Yet another advantage of the invention is found in the ability to pro-actively manage corporate travel expenses based on accurate pre-travel information available on a daily basis. 
     Still yet another advantage of the invention is the maintenance of history reports for management of historical travel information. These reports are useful for group discount negotiations and for tracking corporate policy and contract compliance. 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS 
     The invention may take physical form in certain parts and arrangements of parts, a preferred embodiment of which will be described in detail in this specification and illustrated in the accompanying drawings which form a part hereof and wherein: 
     FIGS. 1a and 1b are an overall system view of the travel reservation record keeping system of the invention; 
     FIGS. 2A and 2B are menu charts of respective control portions of the record keeping system; 
     FIG. 3 is an illustration of the form of raw data available from a typical customer airline computer reservation system; 
     FIG. 4 illustrates the data item types available from the raw pre-travel data illustrated in FIG. 3; 
     FIGS. 5a and 5b are a representative data table portion within the relational database control unit; 
     FIG. 6 is a flowchart of the database input procedure which processes and validates table fields for data integrity; 
     FIG. 7 is a menu and command flow for a typical R:BASE interface session; and, 
     FIG. 8 is a menu and command flow for a typical R:BASE corporate link session. 
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     Referring now to the drawings, wherein the showings are for the purposes of illustrating the preferred embodiment of the invention only and not for purposes of limiting the same, the FIGURES show a travel reservation record keeping system 10 formed in four general units including a serial input/output port A, a serial interface control unit B, and a relational database control unit C. A remote intelligent device H may become a part of the system when connected by a communication line as, for example a MODEM. A printer D, a video screen E, and a keyboard F may also be added to the record keeping system 10, which may be based upon a personal computer such as an IBM PC or other suitably dedicated hardware comprising a microprocessor, memory and device interface. The remote device R is in communication with the system 10 through communication ports G and I. 
     The record keeping system 10 is capable of communication with one or more customer airline computer reservation systems CRSs through a local device T running proprietary software and having a MODEM connection with the CRSs and a serial printer output port. Each CRS contains a suitable queue file Q99 for retention of customer travel data pertaining to travelers serviced by the system 10. The queue Q99 is updated in real-time as reservations are taken by travel agents or the like. 
     An appropriate time of day is selected for a scheduled download of all the data contained within the queue Q99 file, which in the preferred embodiment is selected to be 6:00 pm. The local proprietary device T establishes communication with the airline reservation system CRS as by MODEM or other means. At the preselected scheduled time, the record keeping system is readied for capture of data from the device T. Upon a dedicated print signal from the device T, the airline computer reservation system CRS dumps the data contained within queue Q99 to the device T for printing via serial interface. 
     To the device T, the record keeping system 10 &#34;looks&#34; like a standard printer or standard bulk data buffer often used in conjunction with a slow printer and fast communication channel. In general, the serial interface control unit B within the system 10 handles the necessary communication protocol in order that the data within queue Q99 may be efficiently retrieved. 
     The serial interface control B is written in a high level language source code such as C to run under the well-known operating systems of PC-DOS or MS-DOS within IBM-PC compatible personal computers. The executable code is loaded into RAM from disk when called to execute by the record keeping system 10. 
     More particularly with reference to FIGS. 1a-2b, the serial interface control B has generally four operator-selectable functions: collect data 100; condition data for R:Base 102; configure serial port 104; and, exit 106. The source code for the interface program is provided in Appendix II below. 
     Collect Data 100 
     The interface control program B prompts the operator for a file name to write the imported information within the record keeping system 10. After entering the file name without a DOS extension, the interface program checks the I/O serial part A and issues a message to the sending unit CRS to begin data transmission into a file created having the selected file name and a &#34;.RAW&#34; extension 12. The communication link may be established via MODEM and well-known techniques according to the RS232C standard and the many variations thereof. Hardware and/or software communication protocols may be used for handshaking. A representation of the pre-travel itinerary data contained in the raw data file 12, or reservation data set, is illustrated in FIG. 3. The FIGURE is a partial, but representative, example of the overall contents of the raw data file 12 which may contain the travel itineraries of a large number of customers, wherein the FIGURE illustrates the travel itinerary of only a single person. 
     Condition Data for RBase 102 
     The ultimate output from the serial interface control B is the &#34;.RAW&#34; file 12, converted into ASCII delimited format as a transfer file 20, arranged for use by the relational database control C. The conditioned output file becomes the transfer file 20 and is assigned a &#34;.XFR&#34; extension. All characters and character strings in the transfer file 20 are delimited by quotes. All fields are separated by commas. 
     Each reservation retrieved from the queue file Q99 is bracketed by a Record Header and Record Trailer. The Record Trailer contains a field indicating the number of records between the Header and Trailer, which is used in subsequent error trapping. 
     Between the Header and Trailer are records delineating the customer data, department authorization, and air, hotel and automobile reservations. The selected travel itinerary data items that are &#34;picked&#34; from the raw data file 12 are listed in FIG. 4, wherein all items listed are extracted from the raw data file shown in FIG. 3. 
     All information in the Transfer File (&#34;.XFR&#34;) 20 is ASCII character data. Each field is delimited with double quotes, and the fields are separated by commas within the table segments. This facilitates the selective arrangements of the items within the memory as shown. The various segments are detailed below. 
     
         ______________________________________                                    
Record Header                                                             
(Begin Reservation)                                                       
Format: Record.sub.-- Type,                                               
        Passenger.sub.-- name.sub.-- reservation.sub.-- number            
Where:  Record.sub.-- Type is a valid record type                         
        (see Valid Record Types)                                          
Sample: &#34;B&#34;, &#34;PNR#&#34;                                                       
Record Trailer                                                            
(End Reservation)                                                         
Format: Record.sub.-- Type, Reference.sub.-- Number                       
        Number.sub.-- of.sub.-- Records.sub.-- in.sub.-- Reservation      
Where:  Record.sub.-- Type is a valid record type                         
        (see Valid Record Types)                                          
        Number.sub.-- of.sub.-- Records.sub.-- In.sub.-- Reservation is   
        the number of items between the                                   
        Begin and the End markers. This                                   
        field should be used for validating                               
        on the ASCII input portion of the                                 
        RBase program.                                                    
Sample: &#34;E&#34;, &#34;PNR#&#34;, &#34;14&#34;                                                 
Customer Data                                                             
Format: Record.sub.-- Type, Reference.sub.-- Number,                      
        Transaction Date, Customer.sub.-- Code,                           
        Name, Address1, Adress2, City,                                    
        State, Country, Address.sub.-- Code {, Zip                        
        Code}                                                             
Where:  Record.sub.-- Type is a valid record type                         
        (see Valid Record Types)                                          
Sample: &#34;P&#34;, &#34;PRN#&#34;, &#34;MASTIMCH&#34;, &#34;MASDATCH&#34;,                              
        &#34;MASDATEN&#34;, &#34;UPDTFLAG&#34;, &#34;INDLAST&#34;,                                
        &#34;INDFIRST&#34;, &#34;INDCOMP&#34;, &#34;CLCODE&#34;,                                  
        &#34;INDAGENT&#34;, &#34;INDCUST&#34;                                             
Air Travel Reservation Data                                               
Format: Record.sub.-- Type, PNR.sub.-- Number, Airline,                   
        Flight.sub.-- Number, Depart..sub.-- City,                        
        Arrive.sub.-- City, Depart.sub.-- Time,                           
        Arrive.sub.-- Time, Depart.sub.-- Date,                           
        Arrive.sub.-- Date, Service.sub.-- Class, Fare,                   
        Coach.sub.-- Fare, Low.sub.-- Fare,                               
Where:  Record.sub.-- Type is a valid record type                         
        (see Valid Record Types)                                          
        Reference.sub.-- Number is the Itinerary                          
        Reference Number assigned in Denver                               
        for example.                                                      
Sample: &#34;A&#34;, &#34;PNR#&#34;, &#34;TAIRCODE&#34;, &#34;TAIRFLT#&#34;,                              
        &#34;TAIRDCIT&#34;, &#34;TAIRACIT&#34;, &#34;TAIRDTIM&#34;,                               
        &#34;TAIRATIM&#34;, &#34;TAIRDDAT&#34;, &#34;TAIRADAT&#34;,                               
        &#34;TAIRCLAS&#34;, &#34;TAIRRATE&#34;, &#34;    &#34;,                                   
        &#34;TAIRBAS&#34;, &#34;   &#34;, &#34;TAIRCOAC&#34;,                                     
        &#34;TAIRLOW&#34;, &#34;TAIRSEG#&#34;, &#34;UPDTFLAG&#34;                                 
Transportation Rental Data                                                
Format: Record.sub.-- Type, PNR.sub.-- Number,                            
        Car.sub.-- Company, Pickup.sub.-- Location,                       
        Dropoff.sub.-- Date, Car.sub.-- Type, Car.sub.-- Rate,            
        Confirmation.sub.-- Number                                        
Where:  Record.sub.-- Type is a valid record type                         
        (see Valid Record Types)                                          
        Reference.sub.-- Number is the Itinerary                          
        Reference Number assigned in Denver.                              
Sample: &#34;T&#34;, &#34;PNR#&#34;, &#34;CARCOMP&#34;, &#34;CARALOC&#34;,                                
        &#34;CARDLOC&#34;, &#34;CARADATE&#34;, &#34;CARDDATE&#34;,                                
        &#34;CARCLASS&#34;, &#34;CARFARE&#34;, &#34;CARCONF#&#34;,                                
        &#34;   &#34;                                                             
Hotel Booking Data                                                        
Format: Record.sub.-- Type, PNR.sub.-- Number,                            
        Hotel.sub.-- Company, Hotel.sub.-- Location,                      
        Arrive.sub.-- Date, Depart.sub.-- Date, Room.sub.-- Type,         
        Room.sub.-- Rate, Confirmation.sub.-- Number,                     
        Address.sub.-- 1, Address.sub.-- 2, Hotel.sub.-- State,           
        Hotel.sub.-- Zip                                                  
Where:  Record.sub.-- Type is a valid record type                         
        (see Valid Record Types)                                          
        Reference.sub.-- Number is the Itinerary                          
        Reference Number assigned in Denver.                              
Sample: &#34;H&#34;, &#34;PNR#&#34;, &#34;HOTCOMP&#34;, &#34;HOTLOC&#34;,                                 
        &#34;HOTADATE&#34;, &#34;HOTDDATE&#34;, &#34;HOTCLASS&#34;,                               
        &#34;HOTFARE&#34;, &#34;HOTCONF#&#34;, &#34;   &#34;,                                     
        &#34;HOTADD1&#34;, &#34;HOTADD2&#34;, &#34;HOTSTTE&#34;,                                  
        &#34;HOTZIP&#34;, &#34;   &#34;                                                   
Travel Data Code                                                          
Format: Record.sub.-- Type, Reference.sub.-- Number,                      
        Travaco.sub.-- Data.sub.-- Code                                   
Where:  Record.sub.-- Type is a valid record type                         
        (see Valid Record Types)                                          
        Reference.sub.-- Number is the Itinerary                          
        Reference Number assigned in Denver.                              
        Travaco.sub.-- Data.sub.-- Code is the two letter                 
        code used by record keeping system                                
        operator to assign attribute to a                                 
        customer or their itinerary.                                      
Sample: &#34;D&#34;, &#34;PNR#&#34;, &#34;A3&#34;                                                 
DEPARTURE AUTHORIZATION                                                   
 Format:                                                                  
        Record.sub.-- Type, PRN.sub.-- Number,                            
        Dept.sub.-- Number, Authorization.sub.-- Number                   
Where:  Record-Type is valid record type                                  
        See Valid Record Type)                                            
Sample: &#34;Z&#34;, &#34;PNR#&#34;, &#34;DEPTNO&#34;, &#34;AUTTHNO&#34;                                  
VALID RECORD TYPES                                                        
Airline Reservation                                                       
Begin Reservation                                                         
Travel Data Code                                                          
End Reservation                                                           
Hotel Rental                                                              
Client (Purchaser) Information                                            
Transportation Rental                                                     
Department Authorization                                                  
______________________________________                                    
 
    
     Configure Serial Port 104 
     This option allows the operator to change communication parameters including the baud rate, protocol and assigned serial port. 
     Exit 106 
     The Exit option returns the user to the operating system. 
     RELATIONAL DATABASE CONTROL INTERFACE 
     In addition to the serial interface control B running under DOS, the relational database control C is also implemented to be used in DOS. Any of the available well-known relational database packages may be used as a framework for the database control C, such as for example, R:BASE published by Microrim or Paradox published by Borland International. In the preferred embodiment, R:Base is used. All of the menus, batch processing, and database commands used in conjunction with the relational database control interface discussion below, are listed in Appendix III. It is understood by those skilled in the art, of course, that the off-the-shelf frameworks must be modified or &#34;programmed&#34; to each individual customized application. Guidelines for customizing according to the preferred embodiment are detailed below and in the accompanying Appendices wherein Appendix I illustrates the Table structure used in the preferred embodiment. As also would be appreciated by those of ordinary skill in the art, the methods described below may be extended to areas of corporate accounting, wherein airline back office accounting systems may source raw accounting information for importation into the relational database of the preferred embodiment. Once organized in a manner corresponding to preferred embodiment methods, corporate accountants may easily retrieve pre-formatted and manageable account information from such systems as ADS and TS2000. 
     Referring to FIGS. 1a, 1b and 2B, the main relational database control C system has eight user options: run CRS interface program, run R:Base interface program, prodigy, move XFR file, CLOUT query, daily routine, load data from Corplink site, R:Base development language, print reports, and lists of clients. 
     The second operator option, Run R:Base Interface Program, is used to read the transfer file 20 created in the serial interface control B portion of the system (&#34;.XFR&#34;) and place this information in temporary database table Temptabl 62. FIG. 7 outlines the interface menu/command structure of the user options. A selection &#34;2&#34; from the menu shown in FIG. 2b results in the system running 2.BAT 112. The imported information is validated and an error log is sent to the printer D. 
     The batch file 2.bat 112 calls R:BASE with the input switch Pick2.dat 68, which in turn calls the input and validation procedure. Import0l.CMD 70 (Appendix IIIb) is shown in FIG. 6 and is the main program that calls the following 9 subprograms: VALID01 71; DELETE01 72; TRANS001 73; CURRHIS 74; REPERR 75; UPDATE02 76; and, REPTPROD 77. Import01.CMD 70 also does the following: 
     
         ______________________________________                                    
          1. Changes the steps in the                                     
STEPTAB 45 table.                                                         
          2. Checks to see if error tables                                
55, 58 are empty.                                                         
          3. Loads the TEMPTABL 62 with the                               
data captured from the serial interface system                            
and stored in the &#34;.XFR&#34; file 20.                                         
          4. Shows the number of PNRs                                     
(passenger name records) in TEMPTABL 62 before                            
validations.                                                              
          5. Gets correct processing date.                                
          6. Fills in times and calculates                                
error totals for the STATUS TABLE 47.                                     
VALID01 71- Calls the following validation                                
subprograms and also does the following:                                  
          1. Checks for a null type field.                                
If present, error code &#34;10&#34; is recorded.                                  
          2. Checks for a null reference                                  
number. If present, error code &#34;00&#34; is                                    
recorded.                                                                 
          3. Checks for no &#34;E&#34; type with a                                
&#34;B&#34; type - error code &#34;01&#34;.                                               
          4. Checks for an illegal type in                                
the type field - error code &#34;09&#34;.                                         
VCLIENT 80-P-                                                             
            Checks for a to or for clause error and                       
            if there is one it calls ERRORPRO 85 with                     
            error code &#34;13&#34;. Checks to see that all                       
            key fields are not null and if they are                       
            not then checks to see if the company or                      
            first word of the company is in the                           
            client table. If the company is not in                        
            the client table then ERRORPRO 85 is                          
            called with error code &#34;11&#34;. If the                           
            first word of the company is found in the                     
            client table then the client code in                          
            TEMPTABL 62 is changed to the client                          
            code in the client table 57.                                  
NODUP2 81-P-                                                              
            If no errors were found in VCLIENT 80                         
            and there is more than one &#34;E&#34; type re-                       
            cord for a PNR then this program deletes                      
            everything after the first &#34;E&#34; record for                     
            the PNR to get rid of duplicates.                             
VAIR 81-A-    Fixes 12:00NM to 12:00PM for arrive                         
              time and depart time. lf there is                           
              no arrive time calls ERRORPRO 85                            
              with a &#34;05&#34; error code - air data                           
              error. Checks for &#34;OPEN&#34; in time                            
              and skips it if arrive date is not                          
              on record then it makes arrive date                         
              equal to depart date.                                       
            If arrive city of depart city fails then                      
            it calls ERRORPRO as with a &#34;05&#34; error                        
            code - air data error.                                        
VCAR 83-T-  Checks to see if all fields are there and                     
            in correct format.                                            
            Checks to see if fare is really                               
            confirmation number.                                          
            Checks to see if arrive date, company                         
            name, depart date, fare or location                           
            fails.                                                        
VHOTEL 84-N-                                                              
            Same as VCAR 83 except it flags &#34;07&#34;                          
            hotel data error.                                             
ERRORPRO 85-                                                              
            Depending on errorcode. It fills ERRLOG                       
            43 with the Ref#, error message, and                          
            current date and appends TEMPTABL                             
            62 to ERRORTAB 58 and deletes from                            
            TEMPTABL 62. If the error is a car                            
            or hotel error then only the car or                           
            hotel segment is deleted.                                     
DELET01 72- Deletes PNRS already in the database 30                       
            so that there are no duplicates and the                       
            most current PNR is kept in the database-                     
            Does not delete from INDIVID 59                               
TRANS001 73-                                                              
            Depending on the segment type, it runs                        
            different commands to transfer data from                      
            TEMPTABL 62 to appropriate tables.                            
TRANSAIR 90-M-                                                            
              In TEMPTABL 62 where type EQ                                
              &#34;A&#34; loads TAIR 56.                                          
TRANSCAR 91-T-                                                            
              In TEMPTABL 62 where type EQ                                
              &#34;T&#34; loads CARRENT 42.                                       
TRANSHOT 92-H-                                                            
              In TEMPTABL 62 where type EQ                                
              &#34;H&#34; loads HOTEL 44.                                         
TRANSCOD 93-D-                                                            
              In TEMPTABL 62 where type EQ                                
              &#34;D&#34; loads the travel code to the                            
              TRAVCODS 40 table.                                          
TRANSIND 94-P-                                                            
              In TEMPTABL 62 where type EQ &#34;P&#34;.                           
              If the ref# is already in INDIVID 59                        
              then it just updates the MASDATCH                           
              field, MASTIMCH field, first and                            
              last name fields, and company and                           
              update flag fields. Otherwise it                            
               loads INDIVID 59.                                          
TRANSDA 95-Z-                                                             
            Transfers department and authorization                        
            numbers from the TEMPTABL 62 to the                           
            DEPTAUTH 60 table.                                            
CITYPAIR 96--                                                             
            Makes the connects between air flights.                       
            If there are less than three segments                         
            then there are no connects. If there are                      
            3 hours or less between the depart time                       
            of one flight and the arrive time of the                      
            previous flight then the previous flight                      
            is a connect and the connect field is set                     
            to 1. Otherwise it is not a connect and                       
            the connect field is set to 0.                                
SEGCOUNT 97--                                                             
            Numbers the segments in ascending order                       
            in the TAIR 56 table sorted by ref#,                          
            depart date, and depart time.                                 
DATE 98--   In TAIR 56 where arrive date fails, it                        
            sets arrive date equal to depart date.                        
CURRHIS 74- Loads the current tables from the T table                     
            and the historical tables from the                            
            current tables.                                               
CURRAIR 100--                                                             
            Loads AIRLINE 65 from TAIR 56.                                
HISTAIR 101--                                                             
            Appends AlRLINE 65 to AIRH 53 and then                        
            deletes from AIRLINE 65 where the air                         
            depart date is less than the current                          
            system date. If one segment is                                
            historical then all segments for the ref#                     
            are moved to historical.                                      
HISTCAR 102--                                                             
            Same as above except it uses CARRENT 42                       
            and CARH 54.                                                  
HISTSHOT 103--                                                            
            Same as above except it uses Hotel 44 and                     
            HOTELH 52.                                                    
REPERR 75-  Forms TEMPERR 64 by intersecting                              
            ERRLOG 43 and ERRORTAB 58, makes                              
            error reports and loads the ERRACUME                          
            55 table.                                                     
UPDATE02 76-                                                              
            For every company in the update table it                      
            checks for a valid client code. If the                        
            client code in the update table is not                        
            valid it prints an error message and                          
            pauses. Otherwise, it changes all the                         
            update flags in INDIVID 59 for that                           
            company from &#34;N&#34; to &#34;A&#34; then for all                          
            where flag EQ &#34;A&#34;, changes flags from                         
            &#34;N&#34; to &#34;A&#34; in AIRLINE 65, CARRENT                             
            42, HOTEL 44, AIRH 53, CARH 54,                               
            HOTELH 52, DEPTAUTH 60, and                                   
            TRAVCODS 40. It then unloads all                              
            records in these tables where the update                      
            flag equals &#34;A&#34; to UPDATE.FLE 66.                             
            Then the ref#&#39;s for these records are                         
            unloaded to UPMAS.FLE 67 to delete                            
            repeats on the customer end. Then in all                      
            the tables where update flag is &#34;A&#34; it                        
            changes the update flag to &#34;C&#34; for                            
            complete.                                                     
REPTPROD 77-                                                              
            Sets RPTCOMP, RPTCOMP2, and                                   
            DATESTR and runs all reports in the                           
            report request table.                                         
______________________________________                                    
 
    
     Selecting daily routine 106 from the menu illustrated in FIG. 2a results in the system running 6.BAT 116 as illustrated in FIG. 7. When 6.BAT 116 runs, a DAILY.MNU 130 is displayed having the selections of copy all FLE files to diskette, PC anywhere, prebackup, fastback backup, pack, reload, copy files for clients, changing update flag, prepare PChand file for matrix, and return to main menu. The menu, batch, and command files used with the preferred embodiment are detailed in Appendix III. In general, the interface menu/command structure illustrated in FIG. 7 is practiced by the travel reservation record keeping system 10 to generate an UPDATE.FLE 66 and a UPMAS.FLE 67 file for downloading to the remote intelligent device H. The UPDATE.FLE 66 and UPMAS.FLE 67 files are created using the ordinary R:Base unload command. 
     Referring now to FIG. 8, the corporate link menu/command structure is illustrated. The menu, command, and data files used in the preferred embodiment are detailed in Appendix IV. Initially, a menu MENU.MNU 150 is displayed at the remote intelligent device H, which may be an IBM PC or similar equipment. The remote device H is provided with a database 130 which substantially parallels the database 30 within the record keeping system 10. The initial menu presented to an operator offers the selections of process data, communications, query data, database maintenance, review data, reports, commercial and corporate aircraft scheduling, and return to DOS. 
     Selecting process data 151 presents the PROC.MNU structure 160 which, in turn, offers the selections of beginning of day, end of day, process data, and return to main menu. These procedures are used locally by the intelligent device H to read the files created within the record keeping system 10 and into the local database 130. The sequential selection of the options within the PROC.MNU structure 160 generally executes the daily processing required for operation of the overall system. 
     Reports may be generated within the remote intelligent device H by selecting six reports 155 from the MENU.MNU 150. The various reports available within the preferred embodiment are listed in Appendix IV, but may be tailored to particular applications as desired by an end user. 
     Reports are also available within the record keeping system 10 by selecting &#34;9&#34; print reports from the INTERFACE.MNU 100. The report command file available within the record keeping system 10 are listed in Appendix IVb. Obviously, other reports may be created by one of ordinary skill in the art through the R:Base system to suit a particular application. 
     
         ______________________________________                                    
The reports of the preferred embodiment are:                              
Airfare Analysis                                                          
Corporate Aircraft - Without Connects                                     
City-Pair Quality Control - True City Pairs                               
Quality Control Air (Aircode)                                             
No Car/No Hotel                                                           
Car Summary                                                               
Hotel Summary                                                             
The reports may be briefly described as                                   
follows:                                                                  
Airfare Analysis:                                                         
Reports on current reservations held by each                              
traveler alphabetically.                                                  
Lists reservation detail for each traveler.                               
Includes pricing available at time of                                     
reservation.                                                              
Produced weekly for operation management                                  
review.                                                                   
Corporate Aircraft - Without Connects:                                    
Report data is prior to travel being ticketed.                            
Provides individual travel information by                                 
depart date.                                                              
Can be produced on specified depart dates                                 
only.                                                                     
Reports on destination routing only without                               
listing connections required on commercial                                
flight.                                                                   
Quality Control -True City Pairs:                                         
Reports on reserved travel not yet ticketed.                              
Separated by actual depart city - destination                             
city (exclusive of connection information),                               
Produced daily on pre-ticketed reservations.                              
Summary produced weekly for management review.                            
Quality Control Air (Air Code):                                           
Produces detailed information on reservations                             
by a specific air code.                                                   
Allows for pinpoint monitoring of travel                                  
patterns.                                                                 
No Car/No Hotel:                                                          
Provides summary of reservations to date                                  
booking overnight flights without a car and/or                            
hotel reservation.                                                        
Identifies passenger, depart and return dates,                            
destination and reason (air) code.                                        
Car Summary:                                                              
Report sorts by car agency, or                                            
  location or,                                                            
  pickup date.                                                            
Lists car reservation detail.                                             
Sub-totals each car primary sort.                                         
Post ticket (history) reports available.                                  
Hotel Summary:                                                            
Report sorts by hotel, or                                                 
  check-in date, or                                                       
  loation (sample).                                                       
Lists hotel reservation detail such as: room                              
type, nights, cost per room.                                              
Sub-totals for each hotel facility.                                       
Post ticket (history) reports available in                                
same format as pre-ticket reports.                                        
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