Friday, March 12, 2021

Introduction to Human Computer

IT6200 Introduction to Human Computer


There are three broad categories of user. This category of users know well how to perform the tasks they need to perform frequently.

occasional users

________________ among users and computers happens at the user interface which includes both software and hardware.

Interaction

A ____ software system is one that supports the effective and efficient completino of tasks in a given work context.

usable

When humans communicate with _____________, they bring to the encounter a lifetime of

computer

Developers must attempt to ______________________ in order to produce computer systems with good usability.

achieve efficient, effective and safe interaction

 

HCI is about understanding and creating software and other technology that people will want to use, will be able to use, and will find effective when used.

True

HCI encompasses three major parts within the framework, ____________, _______________ and _________________.

human, computer, interaction

 

The bottom-line benefits of usability to development organizations include:

profits due to more competitive products/services

greater

overall development and maintenance costs

decreased

customer support costs

decreased

follow-on business due to satisfied customers

more

Human-Computer Interaction (HCI) is a multidisciplinary area of study focused on computer technology design and, in particular, the interaction between ______________________

human and computer

 

The benefits of more usable software system to business users include:

increased productivity

decreased user errors

decreased user training time and cost

It's about sending back details about what action was taken and what was done, enabling the individual to continue the operation.

Feedback

Which of the following is a concept indicating that we understand human attention?

Avoid cluttering the interface with more information than is needed at the present moment for the user

Which of the following is the principles of HCI?

Tasks

HCI is about understanding and developing software and other technology that will allow people to use, be able to use, and be successful when used.

True

It is a term which supports the objects in an easy way to use.

Usable

Which one could NOT be found in a good HCI?

A long command line to achieve a function

Several systems and technologies were developed to support telepresence and co-presence

True

Individual differences (need for structure vs. flexibility) and work situations (overloaded vs. bored) would mean that a one-size-fits-all solution is neither feasible nor prudent as we strive for optimum workplace environment and human efficiency.

True

A ____ software system is one that supports the effective and efficient completino of tasks in a given work context.

usable

Speech-recognition systems allow users to communicate using spoken commands

True

Keeping abreast of what others do and letting others know what you do are irrelevant aspects of collaborative work and socialization

False

Social processes such as turn-taking, conventions etc. help us to work together and organize our activities

True

Perception allows us to focus on information that is relevant to what we are doing and it involves an audio and/or visual senses.

False

HCI encompasses three major parts within the framework, ____________, _______________ and _________________.

human, computer, interaction

A software engineer trained in the development of user interfaces would have gained experience, learned about approaches and techniques and gained an understanding of its weaknesses

True

HCI is about understanding and creating software and other technology that people will want to use, will be able to use, and will find effective when used.

True

there are three broad categories of user. This category of users know well how to perform the tasks they need to perform frequently

occasional users

What is the fundamental insight that underlies the evaluation process of "cognitive walk through?

The idea that users earn by exploring an interface

Visibility is what operations and manipulation can be performed on a given entity

False

Human-Computer Interaction (HCI) is a multidisciplinary area of study focused on computer technology design and, in particular, the interaction between ______________________.

human and computer

What are the elements of the Gulf of Execution?

Forming thoughts, defining appropriate behavior, choosing suitable interface mechanism

________________ among users and computers happens at the user interface which includes both software and hardware

Interaction

Humans have a restricted capacity for processing information.

True

Developers must attempt to ______________________ in order to produce computer systems with good usability.

achieve efficient, effective and safe interaction

one of HCI's goals is to create specific capabilities and constraints for the software and/or hardware and platform chosen for the product

True

Human and computer interaction focuses on human-machine interface _____________

Design

Sense Cam is a wearable tool that takes photographs intermittently when worn without any user interference

False

These are the windows of information that pop up to warn about a significant incident or request information.

dialogue boxes

It is the method of choosing items to concentrate on from the set of possibilities available for a search at a point in time

Attention

It is a confirmation box, in which individual and isolated regions can be selected to activate an action inside a display

button

These are the reports that contain information about the incident, the objective data analysis, and the conclusions.

accident reports

Those are the small pictures or photographs depicted as device objects.

icons

What is behavioral design?

Is about use and equates with the traditional values of usability

These are set of options that appear on screen.

menus

This is the interaction of the physical characteristics.

ergonomics

It has a way to express instructions directly to the computer using accessible keys, characters or a combination.

Command Line Interface

The prototyping phase follows after which of the following steps?

Understanding users needs

This is the nature of the interaction between the user / device.

interaction styles

This is what you want to achieve in interaction.

goal

It's a separate intervention intended to change the structure but you can't predict how things will work out exactly

intervention design

These are the systems where augmented reality, window system, and 3D workspaces are used

Three dimensional interfaces

What is emotional interaction?

It's about how we feel and respond when we communicate with technologies

n order to define its aims and purposes, it is the method of researching a practice or enterprise and creating structures and processes

system analysis

It is the design of the interaction between users and products.

design interactions

These are the screen areas which function as if they were separate, such as text or graphics.

windows

Which of the following is design's golden rule?

understand your materials

Which of the following is NOT an Ergonomic example?

spiritual beliefs

You want to test the intuitiveness of the functionality of the application. For this task, you will use:

Low fidelity prototypes

What are expressive interfaces?

Provide reassuring feedback that can be both informative and fun, but also intrusive and annoying

Fidelity can be considered as the

level of detail and the functionality that the prototype has.

What is physiological reactions?

Skin conductance, heart activity, breathing, pupil dilation

Which one of these would NOT be found in a good HCI?

A long command line to achieve a function

The prototyping phase follows after which of the following steps?

Understanding users needs

What is Anthromorphism?

attributing human-like qualities to inanimate objects

What is reflective design?

Taking into account the meaning and personal value of a product in a particular culture

Basic activities in Interactive design EXCEPT

Testing the prototype

What is facial coding?

Measures the emotions of users by analyzing photos recorded via the camera when interacting with the device

What is persuasive technologies?

Interactive computer systems are designed to alter perceptions and behaviors of individuals

Emotional technology aims to

Predict user's feelings and behavioral aspects

For user testing on your low fidelity prototypes, you will:

Give a brief overview of your ideas and then let them explore/figure out your design

A search engine depends on _______to find information on the web.

computers

What is virtual agents?

welcoming persona, has a personality and makes the user feel involved with them

What is deceptive technology?

phishing and trust. Deceive people into parting with personal details

All answers below is benefits of interface design from design rationale, except

not accurately or completely capture the rationale

Interaction design concerned with ___________

Machines with interactive systems

When is an interface annoying?

Crashes, doesn't do what user wants, expectations not met, vague error messages, appearance of interface is gimmicky

Paper and pen-based sketches used for prototyping signify which of the following?

Low-fidelity prototyping

Designer introduces an element of the Design & Use scenarios in a cognitive walkthrough.

True

Walkthroughs are focused so they are suitable to assess small parts of a product.

True

Fitts' Law can’t be used to predict professional, error-free results with restricted key presses for clearly defined tasks

False

Error messages should be expressed in plain language (no codes), the problem should be specified precisely and a solution suggested constructively

Help users recognize, diagnose, and recover from errors

While it's best if the program can be used without documentation, support and documentation may need to be provided.

Help and documentation

The program will speak the language of the users, with user-familiar expressions, phrases, and concepts rather than system-oriented terminology.

Match between system and the real world

Expert is told of the assumptions regarding consumer population, sense of usage, task specifics in heuristic evaluation.

False

Fitt’s law predicts that pointing to an object using a tool is a function of the distance from the object and the size of the object.

True

Minimize the memory load of the user, by having visible objects, behaviors and choices. The user should not need to remember data from one part of the dialog to another. Instructions for using the program should be accessible or easily retrievable where appropriate

Recognition rather than recall

In the early 1990s Jacob Nielsen developed heuristic evaluation.

True

The program will also keep users updated in a reasonable time about what's happening through correct feedback.

Visibility of system status

Modelling includes the processing of user behavior data on a website or product

False

Fitts' law is useful in evaluating structures for which it is not possible to locate an item

False

Users often mistakenly choose system functions and need a clearly marked "emergency exit" to leave the undesirable state without having to go through an extended dialog. Support undo and redo.

User control and freedom

A careful design is even better than good error messages which prevents a problem from occurring in the first place. Either delete or test for error-prone conditions, and offer a validation choice to users before committing to the operation.

Error prevention

Accelerators — unknown by the novice user — can often speed up the professional user interaction so the device can work for both new and seasoned users. Allow users to tailor frequent actions.

Flexibility and efficiency of use

Dialogs should not contain irrelevant or rarely needed information. Each extra information unit in a dialog competes with the related information units and diminishes their relative visibility.

Aesthetics and minimalist design

Users shouldn't be wondering whether specific words, circumstances or acts mean the same thing. Employ conventions on website.

Consistency and standards

Predictive models, offer a way to test goods or prototypes without affecting the users directly.

True

You cannot use inspections to test specifications, mockups, functional prototypes, or systems

False

Match the things to consider when interpreting data from Column A to Column B

Does the assessment process distort the results?

Ecological validity

How generalizable are outcomes?

Scope

Are there prejudices that distort outcomes?

Biases

Can the system measure what they are supposed to calculate?

Validity

Does the process yield the same results on different occasions?

Reliability

Participants will be told why they are doing the test, what they will be asked to do and their rights.

True

Experiments test a hypothesis by changing some variables while preserving constancy of others.

True

Some of the same methods of collecting data are used in evaluation as to set criteria and define the needs of the users.

True

Controlled setting involving users, e.g. field experiments and seeing how the product is used in the real world in wild experiments.

False

Remote testing systems which are inexpensive are more compact than usability laboratories. Many do have handheld eye-tracking apps and other tools.

True

Usability testing is carried out in regulated labs or temporary laboratories.

True

User-free settings are intended to predict, analyze & model aspects of device analytics.

True

Usability testing and trials require the assessor to have a high degree of control over what is being tested, while evaluators usually exert little or no control on participants in field studies.

True

Usability research is based on indicators of success, e.g. How long and how many errors are made while performing a series of predefined tasks. Indirect observation (video and keystroke logging), questionnaires regarding user satisfaction, and interviews are also collected.

True

Evaluations may be carried out in controlled settings such as labs, less controlled field settings, or where no users are present.

True

Field studies are evaluation studies that are carried out in natural settings to discover how people interact with technology in the real world.

True

Natural setting involving people, e.g. usability testing & laboratory and living lab tests.

False

To test dependent variable(s), the experimenter checks independent variable(s).

True

Usually a high authority approves the design of the informed consent form, the assessment procedure, data processing and data storage methods

True

The application of technology in people's daily lives can be measured in living laboratories.

True

Field studies involving the implementation in natural settings of prototypes or innovations can also be referred to as 'in the wild.'

True

Sometimes the results of a field study are surprising, especially in wild studies that investigate how participants use novel technology in their own homes, workplaces, or outside.

True

This is the method of choosing items to concentrate on from the variety of possibilities available for a list at a time.

Attention

The field of HCI __________

attempts to understand and shape the way how people communicate with computers

 

 

 

 

 

 

 

 

 

 

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