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  2. HIPO model - Wikipedia

    en.wikipedia.org/wiki/HIPO_model

    HIPO model (hierarchical input process output model) is a systems analysis design aid and documentation technique from the 1970s, [1] used for representing the modules of a system as a hierarchy and for documenting each module.

  3. Input–output model - Wikipedia

    en.wikipedia.org/wiki/Inputoutput_model

    Inputoutput planning was never adopted because the material balance system had become entrenched in the Soviet economy, and inputoutput planning was shunned for ideological reasons. As a result, the benefits of consistent and detailed planning through inputoutput analysis were never realized in the Soviet-type economies .

  4. International Input–Output Association - Wikipedia

    en.wikipedia.org/wiki/International_Input...

    The International InputOutput Association (IIOA) is a scientific, nonprofit, membership organization to facilitate development of inputoutput analysis in economics and interdisciplinary areas of inquiry. Inputoutput models and analysis in economics were developed by Nobel Laureate Wassily Leontief. Leontief worked from transactions ...

  5. Input/output - Wikipedia

    en.wikipedia.org/wiki/Input/output

    In computing, input/output (I/O, i/o, or informally io or IO) is the communication between an information processing system, such as a computer, and the outside world, such as another computer system, peripherals, or a human operator. Inputs are the signals or data received by the system and outputs are the signals or data sent from it.

  6. Environmentally extended input–output analysis - Wikipedia

    en.wikipedia.org/wiki/Environmentally_extended...

    This formula is the core of environmentally extended input-output analysis: The final demand vector y can be split up into a domestic and a foreign (exports) component, which makes it possible to calculate the material inputs associated with each. The matrix F integrates material (factor) flow data into input-output analysis. It allows us to ...

  7. Waste input-output model - Wikipedia

    en.wikipedia.org/wiki/Waste_Input-Output_Model

    Here represents the square matrix of input coefficients, denotes releases (such as emissions or waste) per unit of output or the intervention matrix, stands for the vector of final demand (or functional unit), is the identity matrix, and represents the resulting releases (For further details, refer to the input-output model).

  8. Input-output analysis - Wikipedia

    en.wikipedia.org/?title=Input-output_analysis&...

    Personal tools. Donate; Create account; Log in; Pages for logged out editors learn more. Contributions; Talk; Input-output analysis. Add languages. ... Download as ...

  9. Environmental systems analysis - Wikipedia

    en.wikipedia.org/wiki/Environmental_systems_analysis

    Environmental systems analysis (ESA) is a systematic and systems based approach for describing human actions impacting on the natural environment to support decisions and actions aimed at perceived current or future environmental problems. Impacts of different types of objects are studied that ranges from projects, programs and policies, to ...