USABILIDADE NA WEB JAKOB NIELSEN PDF
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The review is conducted by a group of experts who are deeply familiar with the concepts of usability in design. The experts focus on a list of areas in design that have been shown to be troublesome for users. Pluralistic inspection Pluralistic Inspections are meetings where users, developers, and human factors people meet together to discuss and evaluate step by step of a task scenario.
As more people inspect the scenario for problems, the higher the probability to find problems.
In addition, the more interaction in the team, the faster the usability issues are resolved. Consistency inspection In consistency inspection, expert designers review products or projects to ensure consistency across multiple products to look if it does things in the same way as their own designs.
Activity Analysis Activity analysis is a usability method used in preliminary stages of development to get a sense of situation. It involves an investigator observing users as they work in the field. Also referred to as user observation, it is useful for specifying user requirements and studying currently used tasks and subtasks. The data collected are qualitative and useful for defining the problem.
It should be used when you wish to frame what is needed, or "What do we want to know? Although the data collected is subjective, it provides valuable information on what the user wants. Task analysis Task analysis means learning about users' goals and users' ways of working.
Task analysis can also mean figuring out what more specific tasks users must do to meet those goals and what steps they must take to accomplish those tasks.
Qualidade Web para um Prontuário Eletrônico do Paciente
Along with user and task analysis, a third analysis is often used: understanding users' environments physical, social, cultural, and technological environments. Focus groups A focus group is a focused discussion where a moderator leads a group of participants through a set of questions on a particular topic.
Although typically used as a marketing tool, Focus Groups are sometimes used to evaluate usability. Used in the product definition stage, a group of 6 to 10 users are gathered to discuss what they desire in a product. An experienced focus group facilitator is hired to guide the discussion to areas of interest for the developers. Focus groups are typically videotaped to help get verbatim quotes, and clips are often used to summarize opinions.
The data gathered is not usually quantitative, but can help get an idea of a target group's opinion. When written carefully and given to actual users who have experience with the product and knowledge of design, surveys provide useful feedback on the strong and weak areas of the usability of a design. This is a very common method and often does not appear to be a survey, but just a warranty card.
Prototyping methods[ edit ] It is often very difficult for designers to conduct usability tests with the exact system being designed.
Cost constraints, size, and design constraints usually lead the designer to creating a prototype of the system.
Instead of creating the complete final system, the designer may test different sections of the system, thus making several small models of each component of the system.
The types of usability prototypes may vary from using paper models, index cards, hand drawn models, or storyboards. Rapid prototyping Rapid prototyping is a method used in early stages of development to validate and refine the usability of a system. It can be used to quickly and cheaply evaluate user-interface designs without the need for an expensive working model. This can help remove hesitation to change the design, since it is implemented before any real programming begins.
One such method of rapid prototyping is paper prototyping. Main article: Usability testing These usability evaluation methods involve testing of subjects for the most quantitative data. Usually recorded on video, they provide task completion time and allow for observation of attitude. Regardless to how carefully a system is designed, all theories must be tested using usability tests.
Usability tests involve typical users using the system or product in a realistic environment [see simulation ]. Observation of the user's behavior, emotions, and difficulties while performing different tasks, often identify areas of improvement for the system.
Metrics[ edit ] While conducting usability tests, designers must use usability metrics to identify what it is they are going to measure, or the usability metrics. These metrics are often variable, and change in conjunction with the scope and goals of the project. The number of subjects being tested can also affect usability metrics, as it is often easier to focus on specific demographics.
Qualitative design phases, such as general usability can the task be accomplished?
As the designs become more complex, the testing must become more formalized. Testing equipment will become more sophisticated and testing metrics become more quantitative. With a more refined prototype, designers often test effectiveness, efficiency, and subjective satisfaction, by asking the user to complete various tasks.
These categories are measured by the percent that complete the task, how long it takes to complete the tasks, ratios of success to failure to complete the task, time spent on errors, the number of errors, rating scale of satisfactions, number of times user seems frustrated, etc.
Often it is quite difficult to distinguish the source of the design errors, and what the user did wrong.
However, effective usability tests will not generate a solution to the problems, but provide modified design guidelines for continued testing. Remote usability testing Remote usability testing also known as unmoderated or asynchronous usability testing involves the use of a specially modified online survey, allowing the quantification of user testing studies by providing the ability to generate large sample sizes, or a deep qualitative analysis without the need for dedicated facilities.
Additionally, this style of user testing also provides an opportunity to segment feedback by demographic, attitudinal and behavioral type. The tests are carried out in the user's own environment rather than labs helping further simulate real-life scenario testing.
This approach also provides a vehicle to easily solicit feedback from users in remote areas. There are two types, quantitative or qualitative. Quantitative use large sample sized and task based surveys.
These types of studies are useful for validating suspected usability issues. Qualitative studies are best used as exploratory research, in small sample sizes but frequent, even daily iterations. Qualitative usually allows for observing respondent's screens and verbal think aloud commentary Screen Recording Video, SRV , and for a richer level of insight also include the webcam view of the respondent Video-in-Video, ViV, sometimes referred to as Picture-in-Picture, PiP Remote usability testing for mobile devices The growth in mobile and associated platforms and services e.
One methodology consists of shipping cameras and special camera holding fixtures to dedicated testers, and having them record the screens of the mobile smart-phone or tablet device, usually using an HD camera. A drawback of this approach is that the finger movements of the respondent can obscure the view of the screen, in addition to the bias and logistical issues inherent in shipping special hardware to selected respondents.
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A newer approach uses a wireless projection of the mobile device screen onto the computer desktop screen of the respondent, who can then be recorded through their webcam, and thus a combined Video-in-Video view of the participant and the screen interactions viewed simultaneously while incorporating the verbal think aloud commentary of the respondents. Thinking aloud The Think aloud protocol is a method of gathering data that is used in both usability and psychology studies.
It involves getting a user to verbalize their thought processes as they perform a task or set of tasks. Often an instructor is present to prompt the user into being more vocal as they work.
Similar to the Subjects-in-Tandem method, it is useful in pinpointing problems and is relatively simple to set up. Additionally, it can provide insight into the user's attitude, which can not usually be discerned from a survey or questionnaire. The tester and team must define a target population for testing, schedule participants to come into the lab, decide on how the users behaviors will be measured, construct a test script and have participants engage in a verbal protocol e.
However it differs from these methods in that it advocates that changes to the user interface are made as soon as a problem is identified and a solution is clear. Sometimes this can occur after observing as few as 1 participant.
Once the data for a participant has been collected the usability engineer and team decide if they will be making any changes to the prototype prior to the next participant. The changed interface is then tested with the remaining users.
With all the shifting of energies on the Planet the Bodies seem to be complaining more and more. The fixed points of views, all the conclusions, all the ways we dont listen to the messages from our bodies, posturing from other time and space dimensions.
Can we un-create and destroy all of that? This affects your Body. Anaphylatic Shock and Quadrate of Laxation, Shock can come from many source, bee stings, injury, and intense judgment coming at you. This process will release the lock up in the body around this. Antalgic Shadows, This process will clear postures you formed to avoid pain. Trifold Sequencing Systems, Powerful for Trauma and shock that was emotionally or physically shocking enough that the person tends to date their life from before or after the incident.
Zero Sum of Trauma, Undoes the effect of cumulative Trauma on the body. Undoes what locks the Trauma in place. Technically and Mechanically-induced Parallactic Paralyzation, This undoes the position taken that results in paralyzation or locking up from the position taken. Source Field for the Elimination and Eradication of Hyper-Ostotic Calcification and Rigidification, Stops what creates your body production of too much bone and solidifying your body, the itis syndromes.
YOU as Space and More! Super Embodiment, if not now, when? Our Body is demanding we take a leap into Infinite Possibilities. We can transform our aversions to being embodied in this reality, effects of other dimensionalities on the body, restoration of Joy, builds awareness of you as space and more.
Antibodies To Consciousness, Addresses all the ways we hold ourselves away from Conscious Embodiment. Eradication of the Aversion of Embodiment, For any disconnect or allergy to the Being. Eradication and Elimination of Specific Gravities, Eliminates how we have created ourselves to be heavy and serious to fit into this reality. Especially good for things that will just not heal or change in the body. Eradication and Dilution of all Emotional Intensities and Restoration of the Joy of Embodiment, This is about removing the emotional intensities so you can have more Joy in your Body.
Embodiment Of and As Space, Changes your relationship with the density of this reality to experiencing yourself as space.
Restoration of Communion with Earth, Renews our sensing of the Earth. Restoration of Immortality, Restores our ability to know the wisdoms gained from lifetime to lifetime. Consciousness includes Every thing!Measuring the user experience: collecting, analyzing and presenting usability metrics.
Merino, G. To encourage co-operative problem-solving between the two subjects, and the attendant discussions leading to it, the tests can be designed to make the subjects dependent on each other by assigning them complementary areas of responsibility e. Super Embodiment, if not now, when? There are many other important quality attributes.
In Bennett, J. Kahman, R. Product interface design: A participatory approach based on virtual reality.
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