Software Functional Requirements

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Questions and Answers

What is the primary role of a User Interface in a system?

To manage backend data processing

To provide a means for interaction between humans and machines (correct)

To enhance system performance

To serve as a database for user information

Which of the following is NOT a characteristic of a User Interface?

Affects the first impression of a system

Allows users to input data

Operates solely on backend logic (correct)

Indicates system responses to user actions

Why is a well-designed User Interface important?

It restricts user input options

It eliminates the need for testing

It enhances backend integrations

It improves application usability (correct)

What can a poor User Interface design lead to?

Negative first impressions of the system Signup and view all the answers

What term is synonymous with User Interface as mentioned in the content?

Front-end of the system Signup and view all the answers

What information should be included in the screen description of a user interface requirement?

Field name, Control type, Data type Signup and view all the answers

In the context of user interface requirements, which of the following describes a mandatory field?

A field that must be filled out by the user Signup and view all the answers

What does the term 'max length' refer to in user interface requirements?

The longest allowable input for a field Signup and view all the answers

Which element is not typically part of the UI style in user interface requirements?

Field descriptions Signup and view all the answers

What is the role of the 'actor' in a use case function study?

Identifies the user or entity that interacts with the use case Signup and view all the answers

Which aspect is included as a pre-condition in a use case function study?

User is logged in to the system Signup and view all the answers

What is the purpose of the 'trigger' in a use case?

To indicate the event that initiates the use case Signup and view all the answers

What is meant by 'alternative flow' in the context of a use case?

The sequence of actions when a problem arises Signup and view all the answers

What is the primary purpose of functional requirements in a system?

To describe the functionalities required by users Signup and view all the answers

Which of the following is NOT a category of non-functional requirements?

System functionality Signup and view all the answers

What type of document is a Software Requirement Specification Document classified as?

Requirement Document Signup and view all the answers

Which statement best describes non-functional requirements?

They restrict how the system must behave under specific conditions. Signup and view all the answers

In regard to usability, what aspect might a quality constraint focus on?

The ease of use for end users Signup and view all the answers

A use case document is primarily designed to detail which of the following?

User interactions and functionality Signup and view all the answers

Which example would most likely fall under functional requirements?

The system should allow exporting data in multiple formats Signup and view all the answers

What type of constraint focuses on how the system should perform tasks?

Performance constraint Signup and view all the answers

Study Notes

Use Case Diagram

Illustrates system functions with respect to actors interacting with the system.

Workflow

Visual representation of processes to guide user interactions and system responses.

Functional Requirement

Focuses on user interface, functionality, and business needs.

User Interface (UI) Requirement Study

UI facilitates interaction between humans and machines, crucial for application usability.
Also known as the front-end of the system, it allows for:
- Input: user manipulation of the system.
- Output: system feedback on user actions.
Poor user interface design negatively impacts first impressions.

Mock-up Screen Design

Consists of a detailed description of screen components, including:
- Field name, control type, data type, default values, and mandatory fields.
- Editable status, maximum length, value, description, and validation requirements.

Use Case/Function Study

Purpose: Provides an overview of the use case's main idea.
Actor: Individual interacting with the use case.
Pre-condition: System states pre-dating the use case initiation.
Trigger: Event kick-starting the use case.
Basic Flow: Sequence of actions when everything functions correctly.
Alternative Flow: Sequence when errors occur.
Post-condition: Possible states of the system post-use case.
Business Rule: Defines or restricts certain business aspects.

Example - Client Creation Use Case

Purpose: To add a new client to the system.
Actor: Practice Business User (e.g., Manager, Administrative, or Sales roles).
Pre-conditions include user login and necessary permissions (Full control - Client Management).
Trigger involves user selecting the 'Client Creation' submenu or button.

Requirements Importance

Establishing clear requirements is essential for successful software development.

Requirement Classification

Various documents outline requirements:
- High-Level Requirement (HLR) Document / User Requirement Definition (URD).
- Use Case Document.
- Software Requirement Specification Document.

Requirement Types

Divided into:
- Functional Requirements: Define system functionalities important to the business flow (e.g., data manipulation, reporting, security access).
- Non-functional Requirements: Describe system behavior constraints, categorized as:
  - Quality, performance, design, environmental/platform, and process constraints.

Quality Constraints

Reflects the desired quality attributes of a system.

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Description

This quiz covers the essentials of software functional requirements, including use case diagrams, workflows, and user interface elements. Participants will learn how to depict system functions effectively for actors involved in the software process.