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  2. Software development effort estimation - Wikipedia

    en.wikipedia.org/wiki/Software_development...

    Formal estimation model: The quantification step is based on mechanical processes, e.g., the use of a formula derived from historical data. Combination-based estimation: The quantification step is based on a judgmental and mechanical combination of estimates from different sources. Below are examples of estimation approaches within each category.

  3. Worksheet - Wikipedia

    en.wikipedia.org/wiki/Worksheet

    The form comes with two worksheets, one to calculate exemptions, and another to calculate the effects of other income (second job, spouse's job). The bottom number in each worksheet is used to fill out two if the lines in the main W4 form. The main form is filed with the employer, and the worksheets are discarded or held by the employee.

  4. Spreadsheet - Wikipedia

    en.wikipedia.org/wiki/Spreadsheet

    In most implementations, many worksheets may be located within a single spreadsheet. A worksheet is simply a subset of the spreadsheet divided for the sake of clarity. Functionally, the spreadsheet operates as a whole and all cells operate as global variables within the spreadsheet (each variable having 'read' access only except its containing ...

  5. Earned value management - Wikipedia

    en.wikipedia.org/wiki/Earned_value_management

    GAO (2009) "GAO Cost Estimating and Assessment Guide" GAO-09-SSP; Defense Systems Management College (1997). Earned Value Management Textbook, Chapter 2. Defense Systems Management College, EVM Dept., 9820 Belvoir Road, Fort Belvoir, VA 22060-5565. Abba, Wayne (2000-04-01). "How Earned Value Got to Prime Time: A Short Look Back and a Glance ...

  6. Cooling load temperature difference calculation method

    en.wikipedia.org/wiki/Cooling_load_temperature...

    The cooling load temperature difference (CLTD) calculation method, also called the cooling load factor (CLF) or solar cooling load factor (SCL) method, is a method of estimating the cooling load or heating load of a building. It was introduced in the 1979 ASHRAE handbook.

  7. Standard addition - Wikipedia

    en.wikipedia.org/wiki/Standard_addition

    Standard addition involves adding known amounts of analyte to an unknown sample, a process known as spiking. By increasing the number of spikes, the analyst can extrapolate for the analyte concentration in the unknown that has not been spiked. [2] There are multiple approaches to the standard addition. The following section summarize each approach.