One maintainer can deal with around 10,000 lines each mcafee subscription renewal.
o Overall life-cycle exertion is normally 40% turn of events and 60% support.
o Maintenance costs on normal are one-6th of yearly advancement costs.
o Successful frameworks are normally kept up for 10 to 20 years.
At last, as being developed, the measure of code that is new versus changed has an effect. The compelling size, that is, the same exertion if practically everything were new code, is as yet the vital contribution for both turn of events and upkeep cost assessment.
5. FIVE ALTERNATIVE APPROACHES All product assessment methods should have the option to demonstrate the hypothesis and the conceivable certifiable outcome. This present reality situation is that over the long run, the overlay of changes upon changes makes programming progressively hard to keep up and consequently less helpful. Upkeep exertion assessment procedures range from the shortsighted degree of exertion strategy, through more insightful investigation and advancement practice changes, to the utilization of parametric models to utilize chronicled information to project future necessities.
5.1 Level of Effort As is here and there the case in the improvement climate, programming upkeep can be displayed as a degree of exertion movement. Given the maintenance class exercises and the incredible fluctuation that they show, this methodology obviously has lacks. In this methodology, a degree of exertion to keep up programming depends on size and type.
5.2 Level of Effort Plus Stuzke suggested that product support begins with essential degree of exertion (least individuals expected to have a center competency and afterward that that fundamental center staff should be changed by surveying three extra factors; setup the executives, quality affirmation, and undertaking the board. His interaction tended to a portion of the extra factors influencing programming upkeep.