Systems Analysis Midterm

A system for which only input and output are prototyped is called a ________. a. first-of-series b. patched-up c. nonoperational d. selected features

c

When iteration is indicated for an element or a group of elements in the data dictionary:

DO WHILE, DO UNTIL, or PERFORM UNTIL structured English statements must be included.

True or False? Cloud services are not very scalable. Once you pay for the service, it is hard to upgrade in the future.

False

True or False? It is unimportant to read background information about the organization prior to an interview since it adds to the expense of the project and the information may be obtained from early open-ended questions.

False

True or False? Iteration data dictionary entries become simple structured English statements in a sequence.

False

True or False? Middle managers make decisions using predetermined rules that have predictable outcomes when implemented correctly.

False

True or False? Use decision trees when there are many repetitious actions.

False

True or False? XML is used when other systems or external organizations use the same software.

False

True or False? An internal data flow is one that connects two processes.

True

True or False? Base elements are elements that need to be keyed into the system.

True

True or False? Data-gathering bias can be reduced by sampling.

True

True or False? In an interview, opinions may be more important and more revealing than facts.

True

True or False? PERT diagrams occasionally need to use dummy activities to preserve the logic.

True

True or False? Projects that are subject to constant updating are prone to miscommunication.

True

True or False? Systems and subsystems are interrelated and interdependent.

True

True or False? The agile philosophy suggests that system developers create a series of deadlines for many releases of the system.

True

True or False? The elements that make up an organizational system are referred to as entities.

True

True or False? The first phase of the system development life cycle is critical to the success of the rest of the project.

True

True or False? The halo effect is when an impression formed in one question carries into the next question.

True

True or False? The requirements met area shows why this use case is important and necessary for the business area to be successful.

True

True or False? There are three standard formats for mainframe computers: zoned decimal, packed decimal, and binary.

True

True or False? When assembling a team, a project manager should look for people with both experience and enthusiasm.

True

Object-oriented approaches use the industry standard for modeling object-oriented systems, called ________ to break down a system into a use case model.

Unified Modeling Language (UML)

A ________ is one that is contained within a larger data structure and consists of further subdivisions. a. structural record b. transactional record c. data alias d. schema

a

All systems are composed of interrelated ________. a. subsystems b. enterprise systems c. database systems d. design systems

a

Processes on a data flow diagram: a. transform incoming data into outgoing information. b. represent the system boundaries. c. represent the work that a specific user performs. d. change the nature of the relationships on a entity-relationship diagram.

a

Quantitative documents include memos, ________ on bulletin boards and in work areas, procedure manuals, and policy handbooks. a. signs b. pictures c. flags d. banners

a

What is a reference work of data about data compiled by systems analysts? a. data dictionary b. data flow diagrams c. structured analysis d. design

a

Which is not one of the four basic symbols used to chart data movement on data flow diagrams? a. an oval b. arrow c. rectangle with rounded corners d. open-ended rectangle

a

Which of these is an advantage of open-ended questions? a. allows more spontaneity b. gets to the point more quickly c. makes comparing interviews easier d. saves time

a

________ includes all the activities required to select a systems analysis team, assign members of the team to appropriate projects, estimate time required to complete each task, and schedule the project so that tasks are completed in a timely fashion. a. Planning b. Designing c. Estimating d. Scheduling

a

An encyclopedia that is used to store all project information is called:

a CASE repository

The ________ is based on values, principles and core practices.

agile approach

An analyst may develop the data flow diagram using a top-down method by using:

algebraic notation and structural records.

A synonym or other name for an element is called a(n):

alias

In order to determine the human information requirements using a decision analysis strategy, what must the systems analyst determine? a. necessary data b. objectives c. information d. data structure

b

Improvements to systems include all the following except: a. combining processes. b. streamlining a process through the elimination of unnecessary or duplicated steps. c. increasing redundant output. d. reducing errors in input through changes of forms and display screens. e. speeding up a process.

c

Partitioning on a data flow diagram for an ecommerce Web site may be used to show: a. external events. b. triggers. c. security. d. derived elements.

c

The duties and responsibilities of the systems analyst are to identify the ________, the attributes, and even the associated attributes that need to be gathered in the sample. a. sample size b. constants c. variables d. leaders

c

Which of following is not a specific criteria for project selection? a. appropriate timing of project commitment b. practical in terms of resources for the analyst and organization c. backing from programmers d. worthwhile project compared with other ways the organization could invest resources e. possibility of improving attainment of organizational goals

c

The problem that occurs when respondents rate everything as average is called:

central tendency

The first step of prototyping is to estimate the ________ involved for building system modules.

costs

A default value on a GUI screen may be used for: a. drop-down lists. b. radio buttons. c. check boxes. d. All of these.

d

In agile development ________ are on spoken interaction between developers and users, not on written communication. a. design b. documentation c. feedback d. stories

d

The agile approach and the ________ approach both allow subsystems to be built one at a time until the entire system is complete. a. systems development life cycle b. unified modeling c. try and try again d. object-oriented

d

The data dictionary may be used to create: a. screens. b. reports. c. forms. d. All of these.

d

Which of the following is not a reason for partitioning processes into separate programs? a. the processes represent different user groups b. the processes execute at different times c. to control system security d. to maintain consistency of data

d

Which of the following is not an error when drawing a data flow diagram?

data flow on a child diagram that has only one end connected to a process, the other end is a point in space

Which of these steps in interview preparation is most helpful in allowing the interviewer to build a vocabulary common to the interviewee? a. deciding on question types and structure b. deciding whom to interview c. establishing interview objectives d. preparing the interviewee e. reading background material

e

The elements that make up an organizational system are called ________.

entities

A logical data flow diagram:

is a model of how the business operates.

Transaction files:

may be used to link processes that execute at different times.

Elements on a data flow going into or out from a data store:

must be contained by the data store.

The ________ contains input and output layouts, file specifications, and processing details for programmers.

program specifications packet

The data store symbol is simply showing a depository for data which allows addition or ________ of data.

retrieval

Which is not a quality of a convenience sample?

the most difficult samples to arrange

Which are qualities of a convenience sample?

unrestricted samples, non-probability samples, the most unreliable samples

A JAD session involves:

using a session leader that has excellent communication skills.

A(n) ________ uses computer networks and communications technology to bring people together to work on projects.

virtual enterprise