Question

QUESTION 6

1. ​ Identify the letter of the choice that best matches the phrase or definition.

   -       a.       b.       c.       d.       e.       f.       g.       h.       i.       j.    ​ Describes how a system will be constructed       -       a.       b.       c.       d.       e.       f.       g.       h.       i.       j.    ​ ​ Shows what the system must do, regardless of how it will be implemented       -       a.       b.       c.       d.       e.       f.       g.       h.       i.       j.    Shows how a system transforms input data into useful information       -       a.       b.       c.       d.       e.       f.       g.       h.       i.       j.    Data flow diagram (DFD) component that represents one or more data items       -       a.       b.       c.       d.       e.       f.       g.       h.       i.       j.    ​ An analyst starts with an overall view, which is a context diagram with a single process symbol       -       a.       b.       c.       d.       e.       f.       g.       h.       i.       j.    Ensures that the input and output data flows of the parent DFD are maintained on the child DFD       -       a.       b.       c.       d.       e.       f.       g.       h.       i.       j.    ​ A set of Data flow diagrams (DFDs) that produces a logical model of the system, but the details within those DFDs are documented separately in a data dictionary, which is the second component of this       -       a.       b.       c.       d.       e.       f.       g.       h.       i.       j.    ​ ​ Documentation of all data flows along with documenting each data element       -       a.       b.       c.       d.       e.       f.       g.       h.       i.       j.    ​ A data structure that contains a set of related data elements that are stored and processed together       -       a.       b.       c.       d.       e.       f.       g.       h.       i.       j.    ​ Can have more than two possible outcomes in addition to multiple conditions

   a. ​ Balancing b. ​ Structured analysis c. ​ Leveling d. ​ Data flow diagram (DFD) e. ​ Physical model f. ​ Data dictionary g. ​ Decision table h. ​ Logical model i. ​ Data flow j. Record

Answer 1

Describes how a system will be constructed - Physical model -(e)

Shows what the system must do, regardless of how it will be implemented- Logical model -(h)

Shows how a system transforms input data into useful information- Data flow diagram (DFD) -(d)

Data flow diagram (DFD) component that represents one or more data items - Data flow -(i)

An analyst starts with an overall view, which is a context diagram with a single process symbol- Leveling-(c)

Ensures that the input and output data flows of the parent DFD are maintained on the child DFD - Balancing-(a)

A set of Data flow diagrams (DFDs) that produces a logical model of the system, but the details within those DFDs are documented separately in a data dictionary, which is the second component of this - Structured analysis-(b)

Documentation of all data flows along with documenting each data element - Data dictionary-(f)

A data structure that contains a set of related data elements that are stored and processed together - Record-(j)

Can have more than two possible outcomes in addition to multiple conditions- Decision table-(g)

Answer 2

• Describes how a system will be constructed --> e. Physical model

(A physical model represents a physical construct whose characteristics resemble the physical characteristics of the modeled system.)

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• Shows what the system must do, regardless of how it will be implemented --> h. Logical model

(They are often diagrammatic in nature and are most typically used in business processes that seek to capture things of importance to an organization and how they relate to one another)

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• Shows how a system transforms input data into useful information --> d. Data flow diagram (DFD)

(A data flow diagram shows the way information flows through a process or system. It includes data inputs and outputs, data stores, and the various sub-processes the data moves through)

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• Data flow diagram (DFD) component that represents one or more data items --> i. Data flow

(the path of data from source document to data entry to processing to final reports. Data changes format and sequence (within a file) as it moves from program to program)

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• An analyst starts with an overall view, which is a context diagram with a single process symbol --> c. Leveling

(Top-down decomposition, also called leveling, is a technique used to show more detail in lower-level DFDs. Leveling is done by drawing a series of increasingly detailed diagrams until the desired degree of detail is reached)

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• Ensures that the input and output data flows of the parent DFD are maintained on the child DFD --> a. Balancing

(When performing top-down decomposition to a DFD to lower level DFDs, the inputs and outputs must be conserved between levels of DFDs using Balancing)

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• A set of Data flow diagrams (DFDs) that produces a logical model of the system, but the details within those DFDs are documented separately in a data dictionary, which is the second component of this --> b. Structured analysis

(It has methods for analyzing business requirements and developing specifications for converting practices into computer programs, hardware configurations, and related manual procedures.)

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• Documentation of all data flows along with documenting each data element --> f. Data dictionary

(A data dictionary is a centralized repository of metadata. Metadata is data about data. )

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• A data structure that contains a set of related data elements that are stored and processed together --> j. Record

(In relational databases, a record is a group of related data held within the same structure. More specifically, a record is a grouping of fields within a table that reference one particular object.)

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• Can have more than two possible outcomes in addition to multiple conditions --> g. Decision table

(It is tabular representation of inputs versus rules, cases or test conditions)