In UML Activity diagrams, what node notation splits a single execution path into multiple concurrent parallel threads of control?
Option E is correct. A Fork Node splits an incoming flow into multiple parallel execution flows. A Join Node synchronizes multiple incoming parallel flows back into a single flow.
Which repository contains centralized definitions of every data element, data structure, data flow, and data store across all DFD diagrams?
Option A is correct. A Data Dictionary is a centralized metadata repository defining the data types, structures, composition rules, and constraints of every data flow item.
What rule governs DFD refinement balancing between a parent process bubble and its lower-level child DFD decomposition?
Option B is correct. DFD Level Balancing mandates that data flows entering or leaving a parent process node must match the net inputs and outputs entering/leaving the child DFD.
Which artifact tracks mapping relationships between business requirement IDs, design modules, test cases, and source code files to verify complete coverage?
Option C is correct. The Requirements Traceability Matrix (RTM) maps each requirement from initial SRS drafting through design, implementation, and test execution verification.
In Object-Oriented Analysis, what model summarizes a class by detailing its Class name, Responsibilities, and Collaborating classes on index cards?
Option A is correct. CRC (Class-Responsibility-Collaborator) cards are an object-oriented brainstorming tool used to partition system responsibilities across classes.