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Term 3 (2023-2024) > INFORSY Quiz 2 > Flashcards

INFORSY Quiz 2 Flashcards

1
Q

A statement of what the system must do or what characteristic it must have

A

Requirement

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2
Q

Requirements are written from the perspective of the user or businessperson

A

Business or User Requirements

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3
Q

Requirements are written from the perspective of the Developers or ERP system. Capabilities that the new system must have and the constraints that the new system must meet.

A

System Requirement

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4
Q

A system requirement that describes an activity or process that the system must perform

A

Functional Requirement

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5
Q

Classification of functional requirement

A

Output
Input
Process (Logical)

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6
Q

Behavioral properties or characteristics of the system other than activities it must perform or support

A

Non-Functional Requirement

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7
Q

Describes operational characteristics related to the environment, hardware, and software of the organization.

A

Technical Requirement

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8
Q

Describes operational characteristics related to measures of capacity, time, speed, workload, such as throughput and response time.

A

Performance Requirements

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9
Q

Describe which users can perform which system function under what condition

A

Security/Controls

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10
Q

Describes the cultural, political factors, and legal requirements that affect the system

A

Cultural and Political Requirements

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11
Q

Describes the dependability of a system, how often a system exhibits behaviors such as service outages, incorrect processing, and error detection and recovery

A

Reliability Requirements

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12
Q

Describes operational characteristics of users such as user interface, work procedures, online help, and documentation

A

Usability Requirements

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13
Q

Requirements are best determined by _________ and ____________ together.

A

Systems analysts, Business people

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14
Q

The basic process of analysis is divided into the following:

A
  1. Understanding the as-is system
  2. Identifying improvements
  3. Developing requirements for the to-be system
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15
Q

The Web site must report online volume statistics every four hours, and hourly during peak periods

A

Output

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16
Q

Manufacturing employees must swipe their ID cards into online data collection terminals that record labor costs and calculate production efficiency

A

Input

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17
Q

The student records system must calculate the GPA at the end of each semester.

A

Process (Logical)

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18
Q

The system must support 25 users online simultaneously

A

Performance

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19
Q

The system must provide log-on security at the operating system level and at the application level

A

Control

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19
Q

Systems Development Life Cycle

A
  1. Systems Planning
  2. Systems Analysis
  3. Systems Design
  4. Systems Development
  5. Systems Testing
  6. Systems Implementation
  7. Systems Operation, Support and Security
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20
Q

Analysis Modeling answers the questions of:

A

Who will use the system
What the system will do
Where and when it will be used

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20
Q

A conceptual representation of how data has been structurally transformed into output that is valuable to users (actor or entity)

A

Data Modelling

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21
Q

A _____________ shows how data moves through an information system but does not show program logic or processing steps

A

Data Flow Diagram (DFD)

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22
Q

A set of DFDs provides a logical model that shows _______________, not how it does it

A

What the system does

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23
Q

A data store must be connected to a _______-.

A

Process

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24
Q

Each data should have an _________ and _________ data flow

A

outgoing, incoming

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25
Q

Correct Examples for Data Flows

A
  1. Process to Process
  2. Process to External Entity
  3. Process to Data Store
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26
Q

A standardized modeling language consisting of an integrated set of diagrams developed to help system and software developers for specifying, visualizing, constructing, and documenting the artifacts of software systems, as well as for business modeling and other non-software systems

A

Object Modelling

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27
Q

Defining all of the types of objects that do the work in a system and showing what user interactions are required to complete the tasks

A

OO Analysis

28
Q

Defining all of the types of objects necessary to communicate with people and devices in the system, showing how the objects interact to complete tasks, and refining the definition of each type of object so it can be implemented with a specific language or environment.

A

OO Design

29
Q

A real-world element in an object-oriented environment that may have a physical or a conceptual existence

A

Object

30
Q

Creation of an object as a member of a class is called _______. Thus, object is ______________.

A

Instantiation; an instance of a class

31
Q

Illustrates the activities that are performed by users of a system

A

Use Case Diagram

32
Q

A use case diagram describes the following functions of the system:

A
  1. What the user can do
  2. How the system responds
33
Q

In a use case diagram, it refers to the individuals involved with the system defined according to their roles. The actor can be a human or other external system

A

Actor

34
Q

In a use case diagram, it describes how actors use a system to accomplish a particular goal. Use cases are typically initiated by a user to fulfill goals describing the activities and variants involved in attaining the goal.

A

Use Case

35
Q

In a use case diagram, this refers to the lines connecting the actors and use cases

A

Relationships

36
Q

In a use case diagram, this defines the system of interest in relation to the world around it

A

System Boundary

37
Q

A use case relationship documenting the communication between the use case and the actors that use the use case

A

Association

38
Q

A use case relationship representing the extension of the functionality of the use case to incorporate optional behavior

A

Extend

39
Q

A use case relationship showing the mandatory inclusion of another use case.

A

Include

40
Q

A use case relationship that allows use cases to support inheritance

A

Generalization

41
Q

An event that initiates the flow of events in a use case. Can be either an actor action or a temporal event

A

Trigger

42
Q

The most common trigger when an action taken by the primary actor initiates the use case.

A

Actor Action

43
Q

Time related events that trigger a use case

A

Temporal Event

44
Q

Conditions that are assumed to be in place before the use case can begin

A

Pre-Conditions

45
Q

Conditions in the form of guarantees that must be in place when the use case is complete

A

Post-Conditions

46
Q

Includes steps that are normally executed in a use case

A

Normal Flows

47
Q

The normal flow of events decomposed to keep the normal flow of events as simple as possible in a use case

A

Sub-Flows

48
Q

Flows that do happen but are not considered to be the norm

A

Alternate / Exceptional Flows

49
Q

Show the sequence of activities in a process, including sequential and parallel activities, and decisions that are made. It may be used to construct test plans

A

Activity Diagram

50
Q

In a structural or conceptual model, there are two types of objects namely:

A
  1. User Interface Objects
  2. Problem Domain Objects
51
Q

Represents a collection of objects having the same characteristic properties that exhibit common behavior

A

Class

52
Q

The constituents of a class are the following: A set of ________ for the objects that are to be instantiated from the class and referred to as class data. A set of ________ that portray the behavior of the objects of the class.

A

Attributes, Operations

53
Q

A static model that shows the classes and the relationship among classes that remain constant in the system over time.

A

Class Diagram

54
Q

___________ Describe the internal dynamic aspects of an information system that supports business processes in an organization.

A

Behavioral models

55
Q

Describes an interaction among a set of objects participated in a collaboration (or scenario), arranged in a chronological order; it shows the objects participating in the interaction by their “lifelines” and the messages that they send to each other.

A

Sequence Diagram

56
Q

A dynamic model that shows the different states through which a single object passes during its life in response to events, along with its responses and actions

A

State Diagram

57
Q

A condition during the life of an object which it may either satisfy some condition for performing some activities or waiting for some events to be received

A

State

58
Q

The ________ of a state machine diagram, known as an initial pseudo-state, is indicated with a solid circle. A transition from this state will show the first real state.

A

Initial State

59
Q

The _________ of a state machine diagram is shown as concentric circles. An open loop state machine represents an object that may terminate before the system terminates, while a closed loop state machine diagram does not have a final state; if it is the case, then the object lives until the entire system terminates.

A

Final State

60
Q

An evidence-based methodology that involves end users throughout the development process to produce information systems that are measurably easier to use, learn, and remember.

A

Usability Engineering

61
Q

A measure of usability that refers to the degree to which users can successfully achieve goals/ complete tasks.

A

Effectiveness

62
Q

A measure of usability that refers to the ability to operate the system to some defined level of competence after some predetermined amount of training

A

Learnability

63
Q

A measure of usability that refers to the ability of users to accomplish goals with speed and ease

A

Efficiency

64
Q

A measure of usability that refers to the attitude of users, including perceptions, feelings, and opinions of the product.

A

Satisfaction

65
Q

Used to provide a simple and easy-to-understand figure to express the overall usability of a task or group of tasks. Summarizes the overall usability for a given task through the use of Principal Component Analysis (PCA)

A

Single Usability Measurement (SUM)

66
Q

Common Usability Metrics include the following:

A
  1. Success Rate
  2. Total time of task
  3. Error Rate
  4. User’s subjective satisfaction
67
Q

A common usability metric that is defined by a user accomplishing a usability task under any constraints placed on the task (e.g. goal state, time limit, or total number of clicks required); the success rate is the percentage of times that users can accomplish a task

A

Success Rate

68
Q

A common usability metric representing the percentage of time users fail to accomplish a task

A

Error Rate

69
Q

A common usability metric that describes how the user feels about the task and his or her performance; usually scored on a scale of one to five or one to seven

A

User’s subjective satisfaction

Term 3 (2023-2024) (7 decks)

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