Data Flow Diagrams

question 40

Multiple Choice

Data flow diagrams

• A)depict logical tasks that are being performed, but not who is performing them
• B)illustrate the relationship between processes, and the documents that flow between them and trigger activities
• C)represent relationships between key elements of the computer system
• D)describe in detail the logic of the process

Identify and understand the engineering approach to analyzing mixed costs.

Grasp the Cost-Volume-Profit analysis concepts and their graphical representation.

Calculate and understand break-even points in various scenarios.

Understand the computation and interpretation of the degree of operating leverage.

---

Definitions:

Existential Instantiation

A logical principle that states from the knowledge that something exists, one can infer the existence of an instance of that thing.

Universal Instantiation

A logical rule that allows one to deduce that a statement applies to specific instances given it holds for all instances.

Modus Tollens (MT)

A form of logical argument where the denial of the consequent leads to the denial of the antecedent.

Simplification (Simp)

A logical operation that breaks down complex arguments or propositions into simpler components.