IT human computer science英国本科coursework_COURSEWORK_ukassignment,英国作业|留学生作业网

IT人机科学英国本科课程作业

QUESTION 1

Menus force users to recall the syntax of a command from memory.菜单强制用户从内存中调用命令的语法

True

False

2 points

QUESTION 2

When is form fillin a more attractive approach than menu selection?什么时候表单填充比菜单选择更吸引人？

Choosing an item from a list.从列表中选择项目。

Data entry of text or numeric values文本或数值的数据输入

When the grouping and sequence of menu items needs to be optimized当需要优化菜单项的分组和顺序时

When the users want to indicate their choice by pointing at their choice当用户想通过指向他们的选择来指示他们的选择时

2 points

QUESTION 3

The most common solution to allow a user to select options, perform limited data entry or review error messages is a dialog-box.允许用户选择选项、执行有限数据输入或查看错误消息的最常见解决方案是一个对话框。

True

False

2 points

QUESTION 4

Suppose you are designing a menu to list songs on an MP3 player that has a capacity to hold a thousand songs. Which of the following ways should you organize the songs to lead to shorter response times by the user?

Alphabetical.

Categorized by artist.

Categorized by file size.

Random.

2 points

QUESTION 5

Positional consistency is a strong principle for good menu design and it is best to do what when an item is no longer available for selection in a menu?

Remove the item.

Gray the item out.

Allow user to select the item, but the corresponding action will not perform.

Provide an instruction saying not to use this selection.

2 points

QUESTION 6

In order to deal with this depth-breadth trade-off, breadth (more items per level, but less level) breadth is preferred over depth (less items per level, but more levels).

True

False

2 points

QUESTION 7

When menus vary their sequence of items adaptively to reflect pattern of use (i.e. moving the most frequently selected objects towards the top), users generally prefer this method.

True

False

2 points

QUESTION 8

Audio menus can be useful when one's hands and eyes are busy, or to assist vision-impaired users.

True

False

2 points

QUESTION 9

In order for a computer language to be effective, it should...

Represent the user's tasks.

Satisfy the human needs for communication.

Be easy to record, manipulate and display the language on a computer.

All of the above

2 points

QUESTION 10

The primary difference between a command language and a menu-selection system is command-language users must recall notation and initiate the action.

True

False

2 points

QUESTION 11

Command languages are more effective if you provide an exorbitant number of objects and actions, so that the user will be more likely to communicate with commands that seem natural to them.

True

False

2 points

QUESTION 12

Using a metaphor as a part of an interface can aid learning, problem solving and retention. The designer should choose a metaphor closer to the computer domain.

True

False

2 points

QUESTION 13

Visual distractions or noisy environments interfere with cognitive processing.

True

False

2 points

QUESTION 14

Selection menus provide meaningful structure. This property is also beneficial for command languages.

True

False

2 points

QUESTION 15

Unix is a successful operating system because its command language uses obvious naming strategies for its various commands.

True

False

2 points

QUESTION 16

Natural language interaction a good strategy to use for input.

True

False

2 points

QUESTION 17

Much spam comes from small companies and individuals who take advantage of the low cost of e- mail to send blanket notices to huge lists of unfiltered e- mail addresses.

True

False

2 points

QUESTION 18

There has been little progress with regard to input-output devices since computers first became widely available in the 1960s.

True

False

2 points

QUESTION 19

Modern keyboards have been refined carefully and tested thoroughly in order to provide the user with maximum versatility. Which of the following choices is the most important characteristic of a keyboard in order to assist in touch-typing?

Provide LED lights for the CAPS LOCK key.

Place a calculator-style number pad as part the right of the keyboard.

Tune the force and displacement of the keys carefully so that when it is pressed, it depresses and produces a subtle clicking noise.

Provide additional function keys along the top row of the keyboard.

2 points

QUESTION 20

Which of the following devices are direct-control pointing devices?

Mouse

Joystick

Touchscreen

Eye-Tracker

2 points

QUESTION 21

Pointing devices are always faster than a keyboard control for the same operation for visually impaired users.

True

False

2 points

QUESTION 22

Fitt's law is a predictive model of time and what does it predict?

The number of words-per-minute a user can type.

The time it takes to point to a target based on width and distance.

The speed at which the data density of circuits increases over time.

The time it takes for a computer to audibly output a text document.

2 points

QUESTION 23

Speech is not an ideal interface for word processors because voice commanding is more demanding of the user's working memory than is hand-eye coordination.

True

False

2 points

QUESTION 24

Modern computers are alienating and anti-human.

True

False

2 points

QUESTION 25

Why can designing a system for cooperation be a challenge?

Balancing the subtle questions of trust, etiquette, deceit and potentially abusive behavior.

People generally do not want to cooperate, as they find it unsatisfying and unproductive.

There hasn't been any research done on cooperation due to the multiplicity of users.

None of the above.

2 points

QUESTION 26

Research in cooperative interfaces is often more complicated than in single user interfaces.

True

False

2 points

QUESTION 27

The way the conversations are managed and moderated tends to have a higher complexity in online communities.

True

False

2 points

QUESTION 28

#p#分页标题#e#

For synchronous exchanges of messages among a stable set of participants, the preferred user interface is text-based chat.

True

False

2 points

QUESTION 29

Which of the following is a benefit of electronic meeting systems?

Participants can add their contributions by projecting their displays for the group to see.

Increases eye contact among the participants.

Facilitates broader input into the meeting process and reduces the chance that only a few people will dominate the meeting.

Guarantees meeting will be lively due to aesthetically pleasing slides.

2 points

QUESTION 30

In small-group collaborative-learning experiences among students pairs often learn better than individuals.

True

False

2 points

QUESTION 31

Systems that require little or no training, for example picking the amount to withdraw from an Automated Teller Machine, e.g. $20, $40, $60, etc. is an example of an application where menu selection and form fillin is more appropriate than a direct-manipulation strategy.

True

False

2 points

QUESTION 32

Keyboard shortcuts can help when frequent menu users are becoming annoyed because they must make several menu selections to complete a simple task.

True

False

2 points

QUESTION 33

If users work too quickly, they may learn less, read with lower comprehension, commit more data- entry errors, and make more incorrect decisions.

True

False

2 points

QUESTION 34

When constructing system messages use consistent abbreviation rules which prefer one letter abbreviation over truncation.

True

False

2 points

QUESTION 35

Command languages are attractive when frequent use of a system is anticipated and the users are knowledgeable about the task and interface concepts.

True

False

2 points

QUESTION 36

A Kiosk application will usually feature a touch screen so users can select a city by pointing on a map. This is because there is no external pointing device (e.g. mouse) required and it is an intuitive interface design requiring no training.

True

False

2 points

QUESTION 37

Speech generation and recognition may improve universal usability for those with physical challenges however speech output is slow when compared to visual displays.

True

False

2 points

QUESTION 38

Designers suggest that speech recognition should be used in a telephone menu system because a limited vocabulary is required to operate a phone.

True

False

2 points

QUESTION 39

Short-term memory generates and implements solutions.

True

False

2 points

QUESTION 40

The mouse is appealing because of its low cost and wide availability.

True

False

2 points

QUESTION 41

As users move from trees to acyclic networks to cyclic networks the potential for getting lost increases and the designer should provide a sense of how far they are from the main menu, by offering menu maps or site maps.

True

False

2 points

QUESTION 42

Natural-language Text Generation can generated reports from structured databases which can be sent out automatically, while timely spoken reports can be made available over the telephone in multiple languages.

True

False

2 points

QUESTION 43

Pointing and selecting in context is often more attractive than typing or even speaking an English sentence..

True

False

2 points

QUESTION 44

Well-designed command languages that have a meaningful structure are usually the most effective and yet many systems will not provide meaningful structure to their command language.

True

False

2 points

QUESTION 45

You are in charge of designing an asynchronous online conferencing tool that will allow business employees to vote and comment on certain issues. A big advantage of building a tool in this form is that the conference leaders can gauge how the participants react by watching their faces.

True

False

2 points

QUESTION 46

The cooperative interface for Email can be grouped into what categories

Synchronous local

Asynchronous local

Synchronous distributed

Asynchronous distributed

2 points

QUESTION 47

The cooperative interface for Instant Messaging can be grouped into what categories:

Synchronous local

Asynchronous local

Synchronous distributed

Asynchronous distributed

2 points

QUESTION 48

The cooperative interface for Group calendars can be grouped into what categories:

Synchronous local

Asynchronous local

Synchronous distributed

Asynchronous distributed

2 points

QUESTION 49

Response time is the number of seconds the user thinks before entering the next action.

True

False

2 points

QUESTION 50

Broadband service providers typically do not offer the same upload and download speeds, typically download speeds are faster.

True

False