FINAL EXAM (M3S2) PART 1

Question 1

Several tools of structured analysis:

Answer 1

1. Data Flow Diagram
2. Data Dictionary
3. Structured English
4. Decision Tree
5. Decision Table

Question 2

is about understanding the situations but not solving the problems.

Answer 2

System Analysis

Question 3

Effective analysis therefore emphasize investigation and questioning to learn how a system currently operates and to identify the requirements users have for the new or modified one.

Answer 3

System Analysis

Question 4

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

Answer 4

Requirement determination

Question 5

is a feature that must be included in a new system. it may include a way of capturing or processing data, producing information, controlling a business activity or supporting management

Answer 5

Requirements

Question 6

Activities in requirement determination

three major activity:

Answer 6

1. Requirement Anticipation
2. Requirement Investigation
3. Requirement Specification

Question 7

Activities in Requirement Determination:

-Experience in a business area or similar systems can help an analyst foresee potential problems or features for a new system.

-This can be beneficial, as it leads to thorough investigation by asking the right questions and focusing on important aspects.

-However, it can also cause issues if bias or shortcuts are introduced.

-To avoid problems, guidelines should be prepared to structure the investigation around basic questions.

Answer 7

Requirement Anticipation

Question 8

this activity is at the heart of system analysis

Answer 8

Requirement investigation

Question 9

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

Answer 9

Requirement Investigation

Question 10

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

Answer 10

Requirement Investigation

Question 11

the data produced during the fact-finding investigation are analyzed to determine “__________________” and the description of features for a new system.

Answer 11

Requirement Specification

Question 12

Requirement Specification

Three interrelated parts:

Answer 12

1. Analysis of Factual data
2. Identification of essential Requirements
3. selection of requirements fulfillment strategies

Question 13

the data collected during the fact-finding study and included in data flow and decision analysis documentation are examined

Answer 13

Analysis of factual data

Question 14

features that must be included in a new system, ranging from operational details to performance criteria, are specified;

Answer 14

Identification of essential requirements

Question 15

the method will be use to achieve the stated requirements are selected. these form the basis for system design, follows requirements specifications

Answer 15

Selection of requirement fulfillment strategies

Question 16

• Begin with the basics
• analyst must raise questions that, when answered, will provide a background of fundamental details about the system and describe it

Answer 16

Understanding the process

Question 17

• analyst next need to find what data are used to perform each activity.
• Most business transactions also produce information

Answer 17

Identify data used and information produced

Question 18

• the frequency of business activities varies greatly
• therefore, analysts should learn how often the activity is repeated

Answer 18

Determine process timing and volume

Question 19

during the analysis stage, the analysts must examine control methods

Answer 19

Identify control

Question 20

User Transaction Requirement:

TPS system:

Answer 20

Capture - Process - Store Data (for a reason)

Question 21

• Decisions, unlike transaction activities, may not follow a specific procedure
• Decision systems may focus on the past, the present or the future.
• analysts investigating decision support system should raise the same questions about timing and frequency discussed previously.

Answer 21

User Decision Requirements

Question 22

(Fact-Finding Techniques)

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

Answer 22

1. Interview
2. Questionnaire
3. Record Inspection (Record Review)
4. Observation

Question 23

analysts used this to collect information from individuals or groups. the respondent are generally current users of the existing system or potential users of the proposed system.

Answer 23

Interview

Question 24

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

Answer 24

Questionnaires

Question 25

- The analysts examine information that has been recorded about the system and user - this can be performed at the beginning of the study. - Records include policy manuals, regulations, and standard operating procedures used by organizations - Records do not show actual activities, decision-making power, or task performance, but they help analysts understand necessary operations and formal relationships.

Answer 25

Record Review

Question 26

allows analyst to gain information they cannot obtain by any other fact - finding method. it can obtain first hand information about how activities are carried out

Answer 26

Observation

Question 27

this method id useful when analyst need to know how documents are handled.

Answer 27

Observation

Question 28

Structured analysis has the following attributes:

Answer 28

1. it is graphic 2. it is logical rather than physical

Question 29

also 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 29

Data flow diagram

Question 30

it is the starting point of the design phase that functionally decomposes the requirements specifications down to the lowest of details

Answer 30

Data flow diagram