reference will now be made in detail to certain embodiments of the present disclosure , examples of which are illustrated in the accompanying figures . fig1 illustrates a prior art manufacturing process wherein the manufacture of a particular model is separated into four independent “ model runs .” specifically , fig1 illustrates a first run 110 , a second run 120 , a third run 130 , and a fourth run 140 . as would be understood by one of skill in the art , each listed run may be used for the manufacturing of different versions of the same product model , using an assembly list of different , but fungible parts . as illustrated , each particular “ run ” uses a different panel type and corresponding support parts . for example , the first run 110 comprises a sony panel part that requires specific corresponding support parts , i . e ., connector type ‘ a ’ and bu board type ‘ a .’ the second run 120 comprises a sharp type panel that uses connector type ‘ b ’ and bu board type ‘ b .’ the third run 130 comprises a samsung type panel with connector type ‘ c ’ and bu board type ‘ c .’ the fourth run 140 comprises an auo panel with connector type ‘ d ’ and bu board type ‘ d .’ as would be understood by one of skill in the art , the panel part from one run may serve as a suitable replacement for the panel of another run . the interchangeability of parts between runs serves to mitigate overall manufacturing costs by increasing the availability of suitable replacement part alternatives . however , before making the determination that a particular panel from a particular model run will serve as a suitable replacement for another , one must first determine whether the associated support parts ( connector and bu board ) are similarly available . the conventional method of determining availability requires the manual lookup of replacement and support part compatibility . fig2 illustrates a decision table display 200 for depicting the availability of one or more part , as well as one or more supporting part , according to one embodiment of the invention . specifically , the chart of fig2 depicts columns for the following informational items : a supplier name 210 , a run label 220 , a part label 230 , a part availability indicator 240 , a support part label 250 , support part availability identifier 260 and an availability indicator 270 . as will be discussed in further detail below , the determination as to whether a particular replacement part is available as an alternative is a function of the availability of the part in question , as well as the availability of all of the supporting parts . by way of example , the decision table display 200 indicates the supplier name 210 in the first column together with the corresponding run label 220 , part availability indicator 240 , supporting part label 250 and support part availability identifier 260 . in preferred embodiments of the invention , the decision table display 200 may be displayed by essentially any suitable display device . it should be appreciated that the information items of the decision table display 200 may be displayed in essentially any arrangement ; for example , the information items of the decision table display 200 may be displayed alone or in a grouping determined by the user . the availability indicator 270 is determined based upon the stock availability of the support part indicated in the support part availability identifier 260 column . for example , with respect to the sony supplied “ run a ” panel part as indicated by the part label 230 — this part is indicated as unavailable (‘ n ’) as an alternative by the availability indicator 270 . this determination is made based on the unavailability of the replacement part as indicated by the part availability indicator 240 and furthermore , by the unavailability of the supporting parts ( connector a and bu board a ) as indicated by the support part availability identifier 260 . by way of further example , turning to the sharp supplied “ run d ” ( as indicated by the supplier name 210 and corresponding run label 220 ). the panel availability is indicated as unavailable (‘ n ’) in the corresponding availability indicator 270 although the panel itself is indicated as in stock (‘ y ’) by the part availability indicator 240 . in this example , the availability indicator 270 ‘ n ’ ( i . e ., that the panel part is not available as an alternative ) is determined as a result of the unavailability of all supporting parts , as indicated by the corresponding support part availability identifier 260 . specifically , although the corresponding “ connector ” is determined to be available ‘ y ’ as indicated by the support part availability identifier 260 , the “ bu board ” is determined to be unavailable . thus , because not all of the support parts are available for the requested panel ( i . e ., the bu board ) availability indicator 270 for this part is indicated as ‘ n .’ by way of another example , with respect to the samsung “ run c ” ( as indicated by the supplier name 210 and corresponding run label 220 ). for this particular run , the panel availability is indicated as available ‘ y ’ in the corresponding availability indicator 270 . in this particular example , the determination of the availability indicator 270 ‘ y ’ ( i . e ., that the panel part is an available alternative ) is based on the availability of the part ( as indicated by the part availability indicator 240 ‘ y ’) as well as the availability of all supporting parts ; that is , the availability of the corresponding connector and bu board as indicated by the support part availability identifier 260 . fig3 is a flow diagram of the steps of a method 300 for determining the availability of an alternative part according to one embodiment of the present invention . the method begins in step 310 wherein model identifiers for each run are stored onto a tangible computer readable memory device ( not shown ). the memory device may comprise essentially any type of computer readable memory medium , including but not limited to flash memory , magnetic memory or optical memory media such as dvd , bluray disc , cd - rom , etc . in preferred embodiments , the memory device is electrically connected to a microprocessor ; for example , the memory could be part of a personal computer or other computing device such as a server . in some preferred embodiments of the invention , the memory device will contain data structures for use as part of a database . by way of example , the information stored on the memory device could comprise at least a portion of a sql database or essentially any type of computer readable database . in some embodiments the model identifier may pertain to a specific product model type . in some embodiments the model identifier may pertain to the particular supplier used for a given model run ; for example , the model identifier may identify supplier / s of a given part / s such as “ sony ” or may comprise some other identifying sequence of characters and / or numbers . in step 320 the part identifiers for each part associated with each model run are stored to the memory device . in step 330 user input is received corresponding to one or more identifiers . specifically , the user input will identify one or more of the stored model identifiers of step 310 . in preferred embodiments of the instant invention , user input will be received by a processor based device , such as a personal computer , coupled to the memory device . in other embodiments , the user input may be received by a processor based device that is in communication with the memory device via a network such as the internet . in step 340 the availability of one or more replacement parts will be indicated based at least on the known stock availability of the one or more replacement parts . by way of example , a processor based system , such as a computer , carrying out the steps of the method 300 , may compare the list of known potential replacement parts for a given model identifier , as indicated by the user . this list of known potential replacement parts may then be compared to the set of known parts that are currently available in a warehousing stock stored in a stock database . the stock database may be queried using part identifiers to provide inventory information for comparison . based on the comparison , the processor based system may generate an indication to the user as to which replacement parts for a particular model identifier are currently available . in one embodiment , the stock database is stored separately from the memory device on which the model identifier and part identifier association information is stored . in another embodiment , the stored part identifier information may further comprise information regarding the stock availability of the specific part corresponding to the part identifier . fig4 is a flow diagram of the steps of a method 400 for determining the availability of one or more replacement parts , based at least on the availability of supporting parts for each replacement part , according to one embodiment of the present invention . by way of example , a user may input into a processor based system an input query corresponding to one or more model identifiers . based on the input received from the user , the processor based system may execute the method 400 to determine and indicate the availability of one or more replacement parts to the user . specifically , the method 400 begins in step 410 in which model identifiers for each model run are stored onto a tangible computer readable memory device ( not shown ). as discussed above with respect to the method 300 , the memory device may comprise essentially any tangible computer readable memory , including but not limited to optical , magnetic or flash memory , etc . the method 400 proceeds into step 420 in which part identifiers are then stored to the memory device . in one embodiment of the invention , the stored part identifiers are each associated with one or more model identifier ( from step 410 ). in preferred embodiments , each part is associated with one model identifier . however , in some embodiments , wherein a particular part may be used in multiple model runs , the part identifier may be associated with multiple model identifiers . in step 430 support part identifiers associated with each potential support part are stored onto the memory or a second memory . in preferred embodiments , the support part identifier information will be associated with the part identifier information such that each support part identifier will be associated with one or more part identifier . in step 440 , an input query corresponding to one or more model identifiers is received . the input query of step 440 could be received from essentially any information source including a program or software function ; however , in preferred embodiments , the input query will be received from a user via an input peripheral such as a keyboard or mouse , electrically communicated with a processor based system such as a computer . in preferred embodiments , the input query will function as a query regarding which replacement part alternatives are available for the one or more model identifiers corresponding to those of the input query . specifically , in response to receiving an input model identifier , the memory may return one or more part identifiers associated with that model identifier . querying the memory or a second memory with a retrieved part identifier may return one or more support part identifiers . in the event that no part identifier or support identifier is returned , user will be notified that no substitution is available . the part and support part identifiers found to be associated to the input model identifier will be supplied to a stock database to determine the inventory status of the parts and support parts . the stock database contains information regarding whether a part or a support part is in stock . in one embodiment , the stock database is stored separately from the memory device on which the association information of model identifier , part identifier , and support part identifier is stored . in step 450 , an indication of the availability of one or more replacement parts will be made , wherein the indication will be based at least on the availability of support parts for each of the replacement parts . in preferred embodiments of the invention , those replacement parts in which all corresponding parts are available will be indicated as available .