Midterm 2

· Which of the following focuses on how information is provided to and captured from users?

o Interface and dialogue design

· The minimum number of instances of entity B that may be associated with each instance of entity A defines the:

o Minimum cardinality of the relationship

· Identifying mandatory features by surveying users and other stakeholders who have been involved in requirements determination would occur:

o Near the end of the analysis phase, after all requirements have been structured and analyzed

· Which of the following is NOT a general guideline for displaying tables and lists?

o Right-justify textual data, and use a short line length.

· Commonly used methods for highlighting include each of the following EXCEPT:

o Spacing.....

· "Please wait while I open the file" is an example of:

o Status information

· Determining requirements and structuring requirements are associated with:

o Systems analysis

· Which of the following is a true statement?

o The goal of conceptual data modeling is to capture as much of the meaning of data as is possible. o The efficiencies gained by maintaining systems at the rule rather than code level drastically reduce cost. o If a thorough repository of data descriptions is kept, the system can be regenerated as the business rules change. o The more details about data that we can model, the better the system we can design and build.

· A deliverable from conceptual data modeling is a set of entries about data objects to be stored in the project dictionary or repository.

o True

· Designing usable forms and reports requires your active interaction with users.

o True

· Gaining an understanding of the skills of the intended system users and the tasks they will be performing is invaluable when constructing a form or report.

o True

· Interface and dialogue design focuses on how information is provided to and captured from users.

o True

· Referencing interface layout guidelines, data fields should be grouped into logical categories with labels describing the contents of the category.

o True

· When displaying tables and lists, you should break long sequences of alphanumeric data into small groups of three to four characters each.

o True

· Shaping alternative system design strategies involves:

o enumerating different potential implementation environments. o proposing different ways to source or acquire the various sets of capabilities for the different implementation environments. o dividing requirements into different sets of capabilities.

· The most conservative solutions in terms of the effort, cost, and technology involved in developing a new system are the:

o low-end solutions.

· Testing to assure that data conforms to a standard format is the purpose of the:

o pictures templates validation test.

· A good number of alternatives to generate is:

3

· Reviewing computer screens, reports, and business forms for the purpose of gaining an understanding of data is indicative of the:

Bottom-up approach

· The most common format used for data modeling is:

E-R Diagramming

· A join is an association between the instances of one or more entity types that is of interest to the organization.

False

· An enterprise-wide data model is prepared during systems implementation and operation.

False

· During the designing the human interface step of the design phase, you would enumerate different potential implementation environments that could be used to deliver the different sets of capabilities.

False

· Highlighting should be used as often as possible to draw the user away from or to certain information.

False

· In business-related systems, textual output is becoming less important as the text-based applications that use these systems are slowly disappearing.

False

· In theory, if there are four sets of requirements, three implementation environments, and four sources of application software, then there would be thirty-six possible design strategies.

False

· Processes, rather than data, are the most complex aspects of many modern information systems.

False

· When designing textual output, both the left and right margins should appear justified.

False

· While essential features help screen out possible solutions, desirable features help compare alternative design strategies.

False

· A faculty identification number could be used as an identifier.

True

· A system design strategy represents a particular approach to developing a system.

True

· A true data entity will have many possible instances, each with a distinguishing characteristic, as well as one or more other descriptive pieces of data.

True

· An identifier is a candidate key that has been selected as the unique, identifying characteristic for an entity type.

True

· Building dialogue prototypes and assessing usability are often optional activities.

True

· Cardinality is the number of instances of entity B that can (or must) be associated with each instance of entity A.

True

· Constraints on systems development include time, finances, and legal and contractual restrictions.

True

· During alternative generation and selection, management may decide to end the project for a variety of reasons, including the fact that the needs of the organization have changed.

True

· During the alternative generation and selection step of the analysis phase, you would propose different ways to source or acquire the various sets of capabilities for the different implementation environments.

True

· Highlighting methods should be consistently selected and used based upon the level of importance of the emphasized information.

True

· Highlighting techniques can be used singularly or in combination, depending upon the level of emphasis desired by the designer.

True

· Notifying the user of the last page of a multipage sequence is a guideline for designing forms and reports.

True

· Relationships are labeled with verb phrases

True

· The bottom-up approach to data modeling derives a data model by reviewing specific business documents.

True

· The minimum cardinality of a relationship is the minimum number of instances of entity B that may be associated with each instance of entity A.

True

· The names of data stores on primitive-level data flow diagrams often correspond to the names of data entities in entity-relationship (E-R) diagrams.

True

· The purpose of the conceptual data model is to show as many rules about the meaning and interrelationships among data as possible.

True

· A relationship between the instances of one entity type is a:

Unary Relationship

· A named property or characteristic of an entity that is of interest to the organization defines:

Attribute

· Conceptual data modeling is typically done in parallel with other requirements analysis and structuring steps during:

Systems Analysis

· During systems planning and selection:

an enterprise-wide data model is prepared

· A product is an example of a(n):

entity

· a systems design, a conceptual data model with attributes is prepared.

false

· Asking system users and business managers "Is each activity or event always handled the same way or are there special circumstances?" helps determine:

integrity rules, minimum and maximum cardinality, and time dimensions of data.

· A ternary relationship occurs when a simultaneous relationship exists among instances of:

o 3 entity types

During systems design:

o A logical model (relational) is prepared

· Which of the following are general guidelines for displaying tables and lists?

o All columns and rows should have meaningful labels o Place a blank line between every five rows in long columns o Use the same family of typefaces within and across displays and reports o Allow white space on printed reports for the user to write notes

· Which of the following is an example of a form?

o Automated teller machine transaction layout

· Making sure that all data and entry fields are clearly labeled corresponds to the following form and report guideline:

o Balance the layout

· Commonly used methods for highlighting include:

o Blinking and audible tones o Color differences o Intensity differences o Size differences

· Testing to assure that data is of proper type is the purpose of the:

o Class or composition validation test

· The guideline specifying that dialogues be logically grouped and have a beginning, middle, and end is:

o Closure

· The ability to provide field-level help is often referred to as:

o Context-sensitive help

· During systems implementation and operation:

o Database and file definitions are prepared

· A formal method for designing and representing human-computer dialogues using box and line diagrams is referred to as:

o Dialogue diagramming

· The guideline specifying that dialogues be simple for users to enter information and navigate between screens is:

o Ease

· Which of the following is an example of a form?

o Electronic spreadsheet

· Structure charts, flow charts, and dialogue diagrams are the major deliverables for the human interface design stage.

o False

· The JAD approach is used for designing interfaces and dialogues.

o False

· When designing textual output, you should use single spacing wherever possible.

o False

· Which of the following is the standard method of gathering and displaying information on the Internet?

o Form Interaction

· Which of the following is NOT a true statement regarding paper versus electronic reports?

o Impact Printers can exactly replicate a screen report to paper