Kartlar: TXST ISAN 3374 System Analysis and Design Exam 1 | Quizlet

Systems Analysis & Design

Process of studying requirements, analyzing needs, and designing information systems.

Agile Development

Iterative, flexible approach to software development focused on collaboration and responding to change.

Functional Requirement

What the system must do (features, use cases).

Nonfunctional Requirement

Qualities of the system (performance, usability, security).

FURPS+

Framework for requirements (Functionality, Usability, Reliability, Performance, Security + design constraints).

Stakeholder

Anyone with interest in system success (users, managers, clients).

Activity Diagram

UML diagram that models workflow, decisions, and parallel processes.

Use Case

A goal an actor wants to achieve using the system.

Actor

External entity (user/system) that interacts with system.

Use Case Diagram

Diagram showing actors, system boundary, and use cases.

User Goal Technique

Identifying use cases by asking users what they want to achieve.

Event Decomposition Technique

Identifying use cases by analyzing external, temporal, and state events.

External Event

Triggered by outside actor.

Temporal Event

Triggered by time.

State Event

Triggered by system condition/state change.

Thing (Domain Class)

Object of interest in the problem domain (usually nouns).

Class

Definition of an object (with attributes and associations).

Object

Instance of a class.

Attribute

Data element describing a class.

Association

Relationship between two classes.

Multiplicity

Defines how many objects participate in relationship (1..*, 0..1, etc.).

Domain Model Class Diagram

UML diagram showing classes, attributes, associations, multiplicity.

Inheritance (Generalization/Specialization)

Subclasses share attributes/behaviors of superclass.

Whole-Part Relationship

Aggregation or composition relationship between objects.