Structure Diagrams - Word Drop

A ______ shows a problem's ______ into subsections, with the whole problem at the top and its parts on the levels below joined by lines. It shows the structure of a problem and how its subsections ______ to one another.

To draw one, add a box for each main subsection underneath, then break each subsection down until every box is a small task that could be written as a few lines of ______. Reading the diagram shows what each subsection does and how related parts are ______ under one parent box. A partly drawn diagram is completed by adding a missing subsection, and is ______ by breaking a box that is too big into smaller boxes.

Structure diagrams help to divide the work between programmers, to plan each ______ that a box becomes and to test each part ______ before the parts are joined together. Repeated tasks are easy to spot, so a part used in two places is written once and ______. A structure diagram shows the parts of a problem, while a ______ shows the order of steps, including any decisions and loops.