System, method and program product for control of sequencing of data processing by different programs

A system for processing data by first, second and third piping applications, said system comprising:

• means for defining said first piping application by combining first and second stages of programming with a first sequence control program based on a first piping command supplied to said first sequence control program, said second stage being a function to send data to a shared queue, said first piping command identifying said first stage, said second stage and parameters for said second stage identifying said queue and a key for said data to be sent to said queue;
• means for defining said second piping application by combining third and fourth stages of programming with a second sequence control program based on a second piping command supplied to said second sequence control program, said third stage being a function to read said data from said queue, said second piping command identifying said fourth stage, said third stage, and parameters for said third stage identifying said queue and said key for said data to be read from said queue;
• means for defining said third piping application by combining fifth and sixth stages of programming with said second sequence control program based on a third piping command supplied to said second sequence control program, said fifth stage being a function to read said data from said queue, said third piping command identifying said sixth stage, said fifth stage and parameters for said fifth stage identifying said queue and said key for said data to be read from said queue;
• and
• means for executing said first, second and third piping applications based on their respective definitions, stages and sequence control programs;
• and wherein
• said first piping command does not identify said second or third piping applications, said second piping command does not identify said first or third piping applications, and said third piping command does not identify said first or second piping applications.

A computer program product for processing data by first, second and third piping applications, said computer program product comprising:

• computer readable media;
• first program instructions to define said first piping application by combining first and second stages of programming with a first sequence control program based on a first piping command supplied to said first sequence control program, said second stage being a function to send data to a shared queue, said first piping command identifying said first stage, said second stage and parameters for said second stage identifying said queue and a key for said data to be sent to said queue;
• second program instructions to define said second piping application by combining third and fourth stages of programming with a second sequence control program based on a second piping command supplied to said second sequence control program, said third stage being a function to read said data from said queue, said second piping command identifying said fourth stage, said third stage, and parameters for said third stage identifying said queue and said key for said data to be read from said queue;
• third program instructions to define said third piping application by combining fifth and sixth stages of programming with said second sequence control program based on a third piping command supplied to said second sequence control program, said fifth stage being a function to read said data from said queue, said third piping command identifying said sixth stage, said fifth stage and parameters for said fifth stage identifying said queue and said key for said data to be read from said queue;
• and
• fourth program instructions to initiate execution of said first, second and third piping applications based on their respective definitions, stages and sequence control programs;
• and wherein
• said first piping command does not identify said second or third piping applications, said second piping command does not identify said first or third piping applications, and said third piping command does not identify said first or second piping applications;
• and
• said first, second, third and fourth program instructions are stored on said computer readable media in functional form.