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Q. Compare the Productivity and difficulty?
Productivity refers to metrics as well as measures of output from production processes per unit of input. Productivity P perhaps conceived of as a metrics of the technical or engineering efficiency of production. In software project planning the productivity is defined as the number of lines of code developed per person-month
Difficulty The ratio (K/td 2) where K is software development cost as well as td is peak development time is called difficulty and denoted by D which is measured in person/year.
D= (K/td 2)
The relationship demonstrates that a project is more difficult to develop when the manpower demand is high or when the time schedule is short.
Putnam has experiential that productivity is proportional to the difficulty Pa Db
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