* Activity diagrams are another type of UML diagram used to model the workflow or flow of control within a system.
* They visually represent the steps performed by a system to complete a specific activity.
* They use a set of symbols, including rounded rectangles for activities, diamonds for decisions, and arrows to show the flow between steps.
* The activity diagram shows the workflow of a process called "PrintPositive".
* It starts with a single initial state (represented by a black circle) labeled "Get Input".
* There's a decision diamond labeled "Negative?" with two paths.
* The "Yes" path leads to an activity "Negate".
* The "No" path leads directly to an activity "Print Output".
* Both paths end with a black circle labeled "End".
How it describes the execution flow:
* The diagram indicates that the process starts by getting some input.
* Then, there's a decision made based on whether the input is negative.
* If it's negative, the value is negated.
* In either case (positive or negative), the output is printed.
* Finally, the process ends.
Summary:
The activity diagram captures the steps involved in the "PrintPositive" activity, including the decision-making process and the alternative paths based on the input. This aligns with the purpose of describing the execution flow.