Answer:
A structured chart is a sequential representation of program design
Step-by-step explanation:
It is true that a real-time system which is a term to describe an operating system working in relation to real-time is actually a form of the online system. Hence, option B is not correct.
It is also true that Batch totals are not incorporated while designing real-time applications because Batch Data processing is carried out in a separate manner and at a time when the computer is free. Thus Option C is not Correct
It is also true that 4GL which stands for Forth generation programming language is used for application prototyping. Again Option D is not Correct.
However, a structured chart is not a sequential representation of program design, but rather a break down to the infinitesimal module in the program design. Hence, option A is the correct answer.