MIS 3301 Chapters 7,8,9,10,11 Exam 3

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The architectural components of any system are the network and the hardware.

False

The only skills that are applied during systems projects are functional.

False

The standard method language for accessing the data in relational database tables is: SQL - Standard Query Logic.

False

There are three advantages associated with client-server architecture.

False

When converting a logical ERD into a physical data model, you will want to specify both primary keys and international keys.

False

When drawing the human-machine boundary, all processes in the physical DFD will be automated, so only external entities will be excluded.

False

In most cases, decision support systems are best at:

Finding aggregated data

When you join two relational database tables together, frequently the primary key in one table will be a ____________ in the other table.

Foreign key

A ___________ is used when fields are numeric or contain coded data.

Format check

What is/are the disadvantage(s) associated with n-tiered architecture?

Great load on the network and when the clients capture keystrokes and the very first architecture system

Processes from logical DFDs might show up on a physical data flow diagram as:

HTML screens or Visual Basic forms

The purpose of creating physical ERDs is to:

Show implementation details and to explain more about the 'how' of the final system

Although TJ did a lot of work normalizing the database so that it is in third normal form (3NF), he may want to 'denormalize' it so that access might be faster.

True

An afferent process is an input process on a structure chart.

True

An example of a cultural requirement would be offering the system in English and Spanish.

True

Application Software Providers (ASPs) should be utilized when considering non-core programming and/custom needs.

True

This term in the computing domain which refers to the creation of devises or storage with the use of software and not hardware is:

Virtualization

There are two symbols that describe special types of control in a structure chart. They are a curved arrow and a diamond. These symbols represent _____ and _____.

loop, conditional line

A reason to use custom development is to get exactly what you want?

True

Which of the following is not a RDBMS?

NoSQL

Workarounds are:

Not supported by a vendor who supplied the software

A relational database that is used extensively in data warehousing is a multidimensional database.

True

A transaction structure in a structure chart contains a control module that calls subordinate modules and frequently occur with menus.

True

Project teams often _________ the ________ associated with creating secure, efficient client-server applications.

Underestimate; Difficulty

The fourth step in creating a Physical Data Flow Diagram is:

Update the data elements in the data flows

Outsourcing firms called _____________ supply software applications and/or software related services through the Internet.

Application Service Providers (ASPs)

This type of file records "before" and "after" images of data as the data gets altered.

Audit files

A _______________ is an outline of the steps that the users perform to accomplish some part of their work

Use Scenario

Systems that support decision making will probably:

Usually just read data - and often in ad hoc ways

The cost of development associated with Client-Based systems is:

Very High

Fixed-price contracts are considered:

Very rigid

There are many types of reports, they include:

all of these are outputs

Approximately _______ percent of men are color blind (and thus improper use of color can impair their ability to read information)

10%

There are _____ primary hardware components of a system.

3

Which is NOT true about the content awareness design principle?

A date of 8/6/09 will be understood internationally

Pseudocode is:

A detailed outline of the lines of code that need to be written

A default value is:

A value that probably occurs most frequently

Form(s) of network connection(s) in a system include:

ATM & DSL

The three types of basic processes on a process model:

Afferent, central and efferent processes

Thick clients contain:

Almost all or most of the application logic.

Many ________ tools like ERwin can help you with database size information and the calculation of volumetrics.

CASE

A ___________ is used when an extra digit is added to a coded field to make sure it the entered data is correct (like social security numbers).

Check digit check

A ___________ is used when several fields must be entered before the form can be processed.

Completeness check

Typically, the fourth step in the user interface design process is:

Creating an interface design prototype

Typically, the third step in the user interface design process is:

Design interface standards

Typically, the second step in the user interface design process is:

Develop the interface structure diagram (ISD)

The CRUD matrix shows

Exactly how data are used and created by the major processes in the system

A DSS is a design support structure and does the 'ETL' (extract, transform and load) to create data warehouses.

False

A great advantage of object oriented database management systems is their easy of learning.

False

Aesthetics refers to designing information that can be navigated in three-clicks or less.

False

An ATM dialing a network provides the IT department with a quick cash withdrawal for emergency purposes.

False

An effective process is an output process on a structure chart.

False

Because project teams rely more on packaged software, program design is no longer needed.

False

Brian wants an e-commerce system to be able to do a lot of rapid processing - like search for particular keywords in documents; return the price of an item; update quantities in the shopping cart. He is probably building an Expert System.

False

Client-based architecture is complex and there is minimal chance of network circuits being overloaded due to growing network applications.

False

Colors and patterns add pizzazz to a screen form and aid in its readability.

False

Couples in structure charts always show two modules that are executed together and are drawn with horizontal lines at the top and bottom.

False

Data marts are larger, aggregated legacy databases.

False

Experienced users prefer user interfaces with 'ease of learning' features.

False

Generally headings on a paper form should be with Arial size 24 bold; the main text should be Times New Roman size 12. Subheadings should be Tahoma size 14, bold and italic and underlined. This makes a form easier to read and to delineate sections.

False

Generally, transaction structures occur at lower levels of a structure chart.

False

If the expertise needed to build a system are not readily available that is a good reason to buy a packaged software solution

False

In the analysis phase, architecture decisions are made and written up in the 'hardware and software specifications'.

False

Informix is a pure OODBMS package.

False

Many of the data stores in the logical DFD will be changed into encrypted word processing documents when a physical DFD is developed.

False

Range checks will validate if the data is numeric with two decimal places.

False

Systems to support decision making generally need to update data frequently with a large volume of data.

False

The scalability associated with Client-Server systems is:

High

As a structure chart is constructed, it is generally best to build modules with:

High cohesion

Interface evaluations almost always ______________.

Identify improvements

Another name for custom development might be:

In-house development

The ______________ defines the basic components of the interface and how they work together to provide functionality to users.

Interface structure design

In most automated cases, data stores from logical DFDs will be converted to:

Into database files / tables

Client-server architectures tend to be:

Less expensive than client-based architectures

Which of the following is a concept not generally associated with decision support systems?

Object orientation

A use scenario is one commonly used ________________.

Path through a use case

Client-server architecture holds the client responsible for_____ and server is only responsible for _____.

Presentation Logic; Data Access Logic and Data Storage

For efficiency purposes, it is wise to___________ when there is a basic software need to be satisfied.

Purchase a packaged system

If (a) the business need is common; (b) the skills needed are not strategic; (c) the time frame is short; it might be best to:

Purchase a software package

Which of the following lists indicates the correct ordering of deliverables in a system specification document?

System Acquisition Weighted Alternative Matrix, Interface Design, Physical Data Model Data Storage Design

In the initial stage of design, what are business requirements converted into?

System Requirements

The project team is very knowledgeable about relational database management systems. In terms of feasibility, this might be best known as:

Technical feasibility ('can we build it')

When designing navigational controls, which is NOT commonly assumed?

That users have knowledge of the system and the interface

In what SDLC stage do we determine the business needs for an information systems project?

The analysis phase

Which is probably true about packaged software

The business need is common

Outsourcing is used when:

The business need is not the core to the business.

One problem with using packages software systems is:

The company has to accept the functionality that is provided with the system

An n-tiered architecture is distinguished by:

The number of specialized server computers

A CRUD matrix shows exactly how data are used and created by major processes in the system.

True

A common need to the business should be satisfied by contracting with an Application Service Provider (ASP).

True

A good indication of needing a transaction structure on a structure chart occurs when a DFD shows a single data flow entering a process that produces multiple data flows as outputs.

True

Which is NOT true of structure charts?

They show the user interface

In Use Scenario Development, the goal is:

To describe the most commonly occurring use scenarios

Because (a) preexisting code needs to be understood, organized, and pieced together; and (b) it is still common for the project team to have to write some code and adapt packages to the business environment, it is therefore good for analysts to fully understand program design.

True

CASE repository entries are updated to reflect specific technology decisions as they are made.

True

Client computers, Servers and Networks are the three primary hardware components of a system.

True

Client-server scalability is greater than server-based scalability.

True

Control couples show the passing of parameters or system related messages between modules (like 'end-of-file').

True

Data storage, Data Access Logic, Application Logic and Presentation Logic are the four basic functions of software systems.

True

During the design phase, the project team carefully considers the nonfunctional business requirements (such as performance, cultural and political aspects).

True

During the initial part of design, the project team converts the business requirements for the system into system requirements.

True

Factoring is the process of separating out a function from a module in order to create a module of its own.

True

If the density on a single page form is too high, it might not be as effective for some users as creating a two-page form.

True

Jamal is creating a user interface. He wants what he calls an 'oops' button on every screen and form (or an 'undo' button). This is a good design consideration.

True

Jasmine is an example of an object-oriented database system.

True

Jim is working from a leveled DFD and creating structure charts. He is finding that the lower levels of the DFD generally correspond to transform structures.

True

Maria is working for the Minneapolis Dance Troop (MDT) and wants a database that can support text, numbers, video, and audio. She will probably select the multidimensional database format.

True

Outsourcing requires the least in-house resources.

True

Rachel wants aggregated data like find the number of banking customers who have savings accounts over $100,000 and home mortgages with her bank. She probably wants to use a Decision Support System.

True

The cost differential between maintaining client-server applications and server-based applications will be offset with organizational experience.

True

The design phase is the time to select the specific software that will operate the hardware.

True

The first principle of designing navigational controls is to prevent users from making mistakes.

True

The score column in the Alternative Matrix represents how easily specific criteria are met by the alternative.

True

When changing from logical data models to physical data models, you will want to change the attributes of the logical ERD to fields in the physical ERD.

True

When changing logical data models to physical data models, you will want to change entities to tables or files.

True

_____ refers to how well the lines of code within each module in a structure chart relate to each other.

cohesion

Reusable modules, which are represented in the structure chart as rectangles with vertical lines on both sides, may often appear several times in a structure chart. These are called _____ modules.

library


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