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  2. Waterfall plot - Wikipedia

    en.wikipedia.org/wiki/Waterfall_plot

    Waterfall plots are often used to show how two-dimensional phenomena change over time. [1] A three-dimensional spectral waterfall plot is a plot in which multiple curves of data, typically spectra, are displayed simultaneously. Typically the curves are staggered both across the screen and vertically, with "nearer" curves masking the ones behind.

  3. Campbell diagram - Wikipedia

    en.wikipedia.org/wiki/Campbell_diagram

    Campbell Diagram of a steam turbine. Analysis shows that there are well-damped critical speed at lower speed range. Another critical speed at mode 4 is observed at 7810 rpm (130 Hz) in dangerous vicinity of nominal shaft speed, but it has 30% damping - enough to safely ignore it.

  4. System Design Review - Wikipedia

    en.wikipedia.org/wiki/System_Design_Review

    The SDR is a technical review conducted to evaluate the manner in which a project's system requirements have been allocated to configuration items, manufacturing considerations, next phase planning, production plans, and the engineering process that produced the allocation. This review is conducted when the system definition is at a point where ...

  5. Waterfall chart - Wikipedia

    en.wikipedia.org/wiki/Waterfall_chart

    Waterfall charts can be used for various types of quantitative analysis, ranging from inventory analysis to performance analysis. [4] Waterfall charts are also commonly used in financial analysis to display how a net value is arrived at through gains and losses over time or between actual and budgeted amounts. Changes in cash flows or income ...

  6. Structured systems analysis and design method - Wikipedia

    en.wikipedia.org/wiki/Structured_systems...

    Structured systems analysis and design method (SSADM) is a systems approach to the analysis and design of information systems. SSADM was produced for the Central Computer and Telecommunications Agency , a UK government office concerned with the use of technology in government, from 1980 onwards.

  7. Design review (U.S. government) - Wikipedia

    en.wikipedia.org/wiki/Design_review_(U.S...

    The PDR demonstrates that the preliminary design meets all system requirements with acceptable risk and within the cost and schedule constraints and establishes the basis for proceeding with detailed design. It will show that the correct design options have been selected, interfaces have been identified, and verification methods have been ...

  8. Bipartisan effort reducing BAC limit to .05% could face ... - AOL

    www.aol.com/news/bipartisan-effort-reducing-bac...

    According to the National Institutes of Health, around 91 countries have adopted a .05% BAC limit for driving, with 54 other nations using a standard ranging from .06% to .12%. ©Aedrian Salazar ...

  9. Structured analysis - Wikipedia

    en.wikipedia.org/wiki/Structured_analysis

    The structured analysis method can employ IDEF (see figure), is process driven, and starts with a purpose and a viewpoint. This method identifies the overall function and iteratively divides functions into smaller functions, preserving inputs, outputs, controls, and mechanisms necessary to optimize processes.