Topic 1.3 Systems Development & Documentation Techniques Flashcards

1
Q

What is a documentation

A
  • a set of documents and models
    • narratives, data flow models, flowcharts
  • describe who, what, why, when, where of systems
    • input, process, storage, output and controls
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2
Q

What do data flow diagrams follow

A
  • Data source/ destination
  • data stores
  • processes
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3
Q

Four basic elements and shapes of DFD

A

= data store
-> data flow
O processes
Square entity

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4
Q

What does the entity (square) represent in a data flow diagram

A
  • the source of the data or the input

- represents the destinations output of the destination

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5
Q

What does the data flow (->) show

A

The movement of data between:

  • processes
  • entities
  • data store

The arrow should label what is moving

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6
Q

What does the process represent in the DFD

A

The process represents the transformation of data

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7
Q

What does the data store (=) represent

A

The data at rest

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8
Q

What are the 3 levels of data flow diagrams

A

Context
Level-0
Level-1

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9
Q

What does the context diagram involve

A
Highest level (summary form)
Purpose: show inputs and outputs into system 
Characteristics: one process symbol only, no data stores
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10
Q

What does a level 0 data flow diagram include

A

Purpose: show all major activity steps of a system
Characteristics: processes are labelled 1.0, 2.0 etc

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11
Q

What does a level 1 data flow diagram include

A

Purpose: show one major activity divided into sub activities
Characteristics: processes are labeled 1.1, 1.2 etc

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12
Q

What do flow charts show?

A
  • Use symbols to logically decipher transaction processing and the flow of data through a system
  • Use pictures or symbols to explain
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13
Q

What are the 3 types of flowcharts

A
  • document
  • system
  • program
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14
Q

What does the document flowchart involve?

A
  • Shows the flow of documents and data for a process

- useful in evaluating internal controls

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15
Q

What does the document flowchart show

A
  • Tells us who is doing what, very good when you are evaluating internal control
  • start in top left and go down to bottom right
  • shows everything from cradle to grave
  • can highlight where there are weaknesses and inefficiencies. Unnecessary complexities
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16
Q

What are business process diagrams?

A
  • are a visual way to represents the activities in a business process
  • intent is that all business users can easily understand the process from a standard notion
17
Q

Preimer Life Company is a life insurance company that collects, stores, prepares and provides customerized life insurance policy to customers in the Midwest. When a customer’s information is received, it is recorded in a database and a ticket is provided to the policy underwriter . When the life insurance policy is issued, the database is updated so that it always reflects the correct amount of life insurance coverage and the length of the policy available to the customers. In a data flow diagram, which type of symbol would be used to represent the process of updating customers’ life insurance records in the system?

A

Circle

18
Q

In a data flow diagram, a triangle represents

A

An internal control

19
Q

In a data flow diagram of the order shipping process, what symbol would most appropriately denote a “Bill of Lading” (a form of shipping document) used in the process?

A

An arrow

20
Q

In a customer payment processing DFD, the “update receivables” activity will be represented by ________, the “accounts receivable file” will be represented by ________, and the “credit manager” will be represented by ________.

A

A circle, two horizontal lines, a square

21
Q

Graphical representations of information are often supplemented by

A

Narrative descriptions

22
Q

In a data flow diagram of the vendor payment process, what symbol would most appropriately reflect an update of the payables account?

A

A circle

23
Q

A data flow diagram created at the highest level or summary view is referred to as

A

Context diagram

24
Q

Preimer Life Company is a life insurance company that collects, stores, prepares and provides customerized life insurance policy to customers in the Midwest. When a customer’s information is received, it is recorded in a database and a ticket is provided to the policy underwriter . When the life insurance policy is issued, the database is updated so that it always reflects the correct amount of life insurance coverage and the length of the policy available to the customers. In a data flow diagram, which type of symbol would be used to represent the system processing customer’s information?

A

Circle

25
Q

Terrell and Monique Anderson run an antique store in their hometown of Dayton, Ohio. To find items to sell in their shop, they travel around the United States and Europe buying unique artifacts. Within an hour of making a purchase, they use their smartphone to take a picture of the item and post a short tweet about the item on Twitter. Which symbol should be used to represent the transfer of data to Twitter in a context diagram of this process?

A

Data flow arrow

26
Q

In a data flow diagram of the vendor payment process, “Vendor” will appear above or in

A

A square

27
Q

A flowchart that depicts the relationships among the input, processing, and output of an AIS is

A

A system flowchart

28
Q

In a data flow diagram that depicts a company’s internal controls, where is each internal control typically explained in detail?

A

on a table that accompanies the internal control data flow diagram

29
Q

More than one arrow is needed between symbols on a DFD if

A

Data flow at different times

30
Q

In general, a data destination will be shown by

A

An arrow pointing in

31
Q

In a data flow diagram of the customer payment process, “Customer” will appear above or in

A

A square

32
Q

Preimer Life Company is a life insurance company that collects, stores, prepares and provides customerized life insurance policy to customers in the Midwest. When a customer’s information is received, it is recorded in a database and a ticket is provided to the policy underwriter . When the life insurance policy is issued, the database is updated so that it always reflects the correct amount of life insurance coverage and the length of the policy available to the customers. In a data flow diagram, which type of symbol would be used to represent the storage location of data in the system?

A

A data store =