M3S2 System Requirement Analysis

Question 1

_____________is the heart of the process.

Answer 1

Analysis

Question 2

It is the key component of the first two phases of the cycle.

Answer 2

Analysis

Question 2

the analyst collects relatively _____________ through interviews, questionnaires, on-site observations, procedures manuals, etc.

Answer 2

unstructured data

Question 3

the analyst collects relatively unstructured data through:

Answer 3

interviews
questionnaires
on-site observations
procedures manuals

Question 4

Structured Analysis Tools

Answer 4

Data flow diagram (DFD).
Data dictionary.
Structured English.
Decision trees.
Decision tables.

Question 5

All about understanding situations, not solving problems.

Answer 5

System analysis

Question 6

Puts emphasis on investigation and questioning to learn how a system currently operates and to identify the requirements users have for a new or modified one;

Answer 6

System analysis

Question 7

studying the current business system to find out how it works and where improvements should be made

Answer 7

System Requirement Determination or Requirement Determination

Question 8

a feature that must be included in a new system

Answer 8

requirement

Question 9

Three major activities in requirements determination

Answer 9

Requirements anticipation
Requirements investigation
Requirements specification

Question 10

Foreseeing the likelihood of certain problems or features and requirements for a new system

Answer 10

Requirements anticipation

Question 11

Can be a mixed blessing

Answer 11

Requirements anticipation

Question 12

This activity is at the heart of systems analysis.

Answer 12

Requirements Investigation

Question 13

It involves using various tools and skills used by analysts to study the current system and document its features for further analysis.

Answer 13

Requirements Investigation

Question 14

It relies on fact-finding techniques and includes methods for documenting and describing system features.

Answer 14

Requirements Investigation

Question 15

The data produced during the fact-finding investigation are analyzed to come up with the description of features for a new system.

Answer 15

Requirements Specification

Question 16

Requirements Specification - Three interrelated parts:

Answer 16

Analysis of Factual Data
Identification of Essential Requirements
Selection of Requirements Fulfillment Strategies

Question 17

Unlike transaction activities, may not follow a specific procedure.

Answer 17

Decisions

Question 18

• It refers to the specific methods analysts use for collecting data about requirements.

Answer 18

Fact – Finding techniques

Question 19

Fact – Finding techniques

Answer 19

Interview,
Questionnaire,
Record inspections (on-site review) and
Observation.

Question 20

used to collect information from individuals or groups. The respondents are generally current users of the existing system or potential users of the proposed system.

Answer 20

interviews

Question 21

allows analysts to collect information about various aspects of a system from a large number of persons.

Answer 21

Questionnaires

Question 22

Analysts often use __________ and ________ questionnaires.

Answer 22

open-ended and close-ended

Question 23

analysts examine information that has been recorded about the system and user.

Answer 23

Record Review

Question 24

allows analysts to gain information they cannot obtain by any other fact – finding method.

Answer 24

Observation

Question 25

Through ______________, analysts can obtain firsthand information about how activities are carried out;

Answer 25

observation

Question 26

This method is most useful when analysts need to actually see how documents are handled, how processes are carried out

Answer 26

observation

Question 27

a set of techniques and graphical tools that allow the analyst to develop a new kind of system specifications that are easily understandable to the user.

Answer 27

Structured analysis

Question 28

Contrary to traditional approach, __________ considers new goals and structured tools for analysis.

Answer 28

Structured analysis

Question 29

cost/benefit and feasibility analysis, project management, hardware and software selection, and personnel considerations are often refered to as?

Answer 29

traditional approach

Question 30

Structured analysis has the following attributes

Answer 30

It is graphic. It is logical rather than physical.

Question 31

Structured Analysis Steps

Answer 31

Requirements Gathering Data Flow Diagram DFD Entity Relationship Diagram ERD Data Dictionary Structured English Structured Charts Prototyping and Validation

Question 32

Analysts meet with stakeholders (such as librarians, patrons, and administrators) to understand their needs and requirements.

Answer 32

Requirements Gathering

Question 33

a structured analysis tool that represents the flow of data within the system.

Answer 33

DFD

Question 34

Define data elements (attributes) and their characteristics (data type, length, etc.).

Answer 34

Data Dictionary

Question 35

model the relationships between entitieS

Answer 35

ERD

Question 36

Analysts write English descriptions for each process.

Answer 36

Structured English

Question 37

Analysts create charts (like flowcharts) to illustrate the logic of processes.

Answer 37

structured charts

Question 38

Analysts build prototypes to validate the design with stakeholders.

Answer 38

Prototyping and Validation

Question 39

They refine the system based on feedback.

Answer 39

Prototyping and Validation

Question 40

lso known as a “bubble chart,” has the purpose of clarifying system requirements and identifying major transformations that will come from programs in system design.

Answer 40

Data Flow Diagram (DFD)

Question 41

It is the starting point of the design phase that functionally decomposes the requirements specifications down to the lowest level of detail.

Answer 41

Data Flow Diagram (DFD)

Question 42

A ______________ is a structured repository of metadata that provides a comprehensive description of the data used. Its main purpose is to provide a common language and understanding of the data, its meaning, and how it relates to other elements.

Answer 42

data dictionary

Question 42

Common Symbols in DFD:

Answer 42

External entities Processes Data Flows  Data Stores 

Question 43

Components of a data dictionary include:

Answer 43

Components of a data dictionary include: Data Element Name Data Type Domain Value - Definition/Description Source Datecreated

Question 44

 is a technique used by systems analysts to model and document the logic of information processes.

Answer 44

Structured English

Question 44

It’s a form of English that resembles programming statements but doesn’t have a compiler-readable syntax. 

Answer 44

Structured English

Question 45

A _____________ is a hierarchical model used in data analysis and decision-making. It visually represents a decision-making process by mapping out possible outcomes based on different choices or scenarios.

Answer 45

decision tree

Question 46

 are concise visual representations used to specify which actions to perform based on given conditions.

Answer 46

Decision Tables

Question 47

They serve as algorithms that produce a set of actions. You can think of them as a structured way to model decision-making logic, similar to if-then-else statements or switch-case constructs in programming.

Answer 47

Decision Tables