Systems Analysis And Design In A Changing World - Chapter 6

Front 1

Name two approaches to systems analysis & design

Back 1

Traditional and object-oriented approach

Front 2

Which approach to systems analysis and design views a system as a collection of processes, some performed by people and some performed by the computer?

Back 2

Traditional approach

Front 3

Which approach to systems analysis and design involves processes, stored data, inputs and outputs?

Back 3

Traditional approach

Front 4

This modeling technique breaks the system into a hierarchical set of increasingly more detailed models.

Back 4

Level of abstraction

Front 5

System is a collection of interacting objects; objects interact with people and each other/ objects send and respond to messages. Which approach uses these?

Back 5

Object-oriented approach

Front 6

This approach views a system as a collection of interacting objects.

Back 6

Object-oriented approach

Front 7

Objects are capable of behaviours (or _______) that allow them to interact with each other and with people using the system.

Back 7

Methods

Front 8

Name the requirements model for the traditional approach.

Back 8

Entity-relationship diagram

Front 9

Name the requirements model for the object-oriented approach

Back 9

Class diagram

Front 10

This diagram represents system requirements as processes, external agents, data flows and data stores in the traditional approach

Back 10

Data flow diagram

Front 11

Which approach uses a process dependency diagram

Back 11

Information Engineering approach

Front 12

Business process reengineering uses ________ diagrams

Back 12

Workflow

Front 13

___________ diagram is a graphical system model that shows all of the main requirements for an information system in one diagram?

Back 13

Data flow diagram

Front 14

A person or organization outside the system boundary that supplies data inputs or accepts data outputs?

Back 14

External agent

Front 15

A symbol on a DFD that represents an algorithm or procedure by which data inputs are transformed into data outputs?

Back 15

Process

Front 16

Symbol that represents data movement among processes, data stores and external agents?

Back 16

data flow symbol

Front 17

______________ is a place where data are held pending future access by one or more processes?

Back 17

Data store

Front 18

_____________ diagram is the most commonly used process model for the traditional approach.

Back 18

Data flow

Front 19

Instructions that transform inputs into outputs are called __________.

Back 19

Process

Front 20

This symbol communicates back and forth between an external agent and a process as the process is executing.

Back 20

Real-time link

Front 21

A data flow diagram that shows the most abstract view of a system.

Back 21

Context diagram

Front 22

A data flow diagram that summarizes all processing activity within the system in a single process symbol

Back 22

Context diagram

Front 23

The context diagram is usually created in parallel with the _________.

Back 23

Event table

Front 24

The _______________ is usually created in parallel with the event table.

Back 24

Context diagram

Front 25

A DFD that represents the system response to one event within a single process symbol.

Back 25

DFD fragment

Front 26

When are the DFD fragments drawn?

Back 26

After the event table and context diagram are complete

Front 27

The context diagram can be created directly from the _________.

Back 27

Event table

Front 28

A DFD fragment is drawn for __________________.

Back 28

Each event in the event table.

Front 29

A DFD that models system requirements using a single process for each event in a system or subsystem is called _________________________.

Back 29

Event-partitioned system model, or Diagram 0

Front 30

Another name for Event-partitioned system model?

Back 30

Diagram 0

Front 31

Another name for Diagram 0

Back 31

Event-partitioned system model

Front 32

Diagram 0 (or Event-partitioned system model is usually used as a ________________.

Back 32

Presentation model

Front 33

Any model that shows what the system is required to do without committing to any one technology.

Back 33

Logical model

Front 34

Any model that shows how the system will actually be implemented.

Back 34

Physical model

Front 35

A method of writing process specifications that combines structured programming techniques with narrative English.

Back 35

Structured English

Front 36

__________________ uses brief statements to describe a process very carefully.

Back 36

Structured English

Front 37

A system development methodology that focuses on strategic planning, data modeling, and automated tools, and is thought to be more rigourous and complete than the structured approach.

Back 37

Information Engineering

Front 38

Name the first phase of the Information Engineering SDLC.

Back 38

Systems Planning

Front 39

Name the second phase of the Information Engineering SDLC.

Back 39

Business area analysis

Front 40

Name the third phase of the Information Engineering SDLC.

Back 40

System Design

Front 41

Name the fourth phase of the Information Engineering SDLC.

Back 41

System construction

Front 42

A model that represents the hierarchical relationship among processes at different levels of abstraction (IE)

Back 42

Process decomposition diagram

Front 43

A model that describes the ordering of processes and their interactions with stored entities (IE)

Back 43

Process dependency diagram

Front 44

A repository for definitions of data flows, data elements and data stores.

Back 44

Data dictionary

Front 45

A textual description of a data flow's content and internal structure.

Back 45

Data flow definition

Front 46

A tabular representation of processing logic containing decision variables, decision variable values, and actions or formulas

Back 46

Decision table

Front 47

A graphical description of process logic that uses lines organized like branches of a tree

Back 47

Decision tree

Front 48

A process or data store with a data input that is never used to produce a data output

Back 48

Black hole

Front 49

A process or data store with a data element that is created out of nothing

Back 49

Miracle

Front 50

Difficulty in understanding that occurs when a reader receives too much information at one time

Back 50

Information overload

Front 51

The rule of model design that limits the number of model components or connections among components to no more than nine.

Back 51

Rule of 7 ± 2

Front 52

A principle of model design that seeks simplicity by limiting the number of onnections among model components

Back 52

Minimization of interfaces

Front 53

Equivalence of data content between data flows entering and leaving a process and data flows entering and leaving a process decomposition

Back 53

Balancing

Front 54

A diagram or map that identifies all of the processing locations of a system

Back 54

Location diagram

Front 55

A table that describes the relationship between processes and the locations in which they are performed

Back 55

Activity-location matrix.

Front 56

A table that describes stored data entities, the locations from which they are accessed, and the nature of the accesses

Back 56

Activity-data matrix

Front 57

What does the acronym CRUD stand for?

Back 57

Create, read, update and delete

Front 58

Processes that support marketing, sales, and service operations involving direct and indirect customer interactions.

Back 58

Customer Relationship Management

Front 59

A process that seemlessly integrates product development, product acquisition, manufacturing, and inventory management

Back 59

Supply Chain Management

Front 60

Data Flows and external agents on the context diagram are taken directly from the ______________.

Back 60

Event Table

Front 61

When a system responds to many events it is commonly divided into ________________ and a ______________ is created for each ____________.

Back 61

Subsystem
Context Diagram
Subsystem