Functional decomposition is focused on that methods which are discrete such as the need for the Jackson Structured Programming for the manipulation of data. So, It is not the concrete step that is implemented for some detailed which is remain unspecified.
That's why the following statement is not correct according to the functional decomposition.
Concrete steps are those steps for which full explanation details of implementation is mentioned while abstract steps are those for which some details are not mentioned or specified.
functional decomposition is referred to as the technique to developed software. In functional decomposition, in which error is divided into smaller form and solution to each smaller error then combine to give the solution to the whole error.
Calcium, a chemical element with symbol Ca and atomic number 20. Calcium is a soft grayish-yellow alkaline earth metal, fifth-most-abundant element by mass in the Earth's crust
Solar heating of the Earth's surface is uneven because land heats faster than water, and this causes air to warm, expand and rise over land while it cools and sinks over the cooler water surfaces. ... Any shoreline is a wind machine, because of solar heating effects.