We need similar visual metaphors, easy to grasp quickly and manipulate in rich combinations, for such concepts as piping output to another program, setting up filters, and launching programs upon the reception of particular events.
| Code | Definition description |
|---|---|
| X | Usability problem |
| D | Duplicate usability problem (described earlier) |
| V | Video highlight — an "Ah-ha!" moment |
| C | Comment (general comment by participant) |
| P | Positive opinion expressed by participant |
| N | Negative opinion expressed by participant |
| B | Bug |
| F | Facial reaction (e.g. surprise) |
| H | Help or documentation accessed |
| A | Assist from moderator |
| G | Gives up or wrongly thinks finished |
| I | Design idea (design insight by logger) |
| M | Misc (general observation by logger) |
Comparemos el Mercado Eléctrico con el de la fruta. Un agricultor cultiva patatas en Galicia, y otro mangos en Granada. ...[los distribuidores] se encargan de suministrarlo a las tiendas que lo venden al por menor para que podamos consumirlo los clientes finales. El Mercado Eléctrico funciona de forma similar.
... la electricidad es un producto idéntico independientemente de la tecnología que se haya utilizado para su generación. Para que esta ejemplificación tenga lógica, deberemos considerar que a los consumidores nos es indiferente consumir patatas que mangos. De producirse este hecho, por lógica empezaríamos por adquirir las patatas que son mucho más baratas, y cubriríamos la demanda sobrante con mangos.
Pero… ¿qué sucedería si el precio de venta de todos los productos intercambiados en Mercamadrid lo estableciese el último vendido (el más caro de entre los más baratos)? Pues que estaríamos pagando las patatas a precios de mango, con el consiguiente aporte de beneficios sobrevenidos al agricultor gallego. Esto en principio no tiene sentido en un mercado competitivo, pero es precisamente lo que sucede actualmente en el Mercado Eléctrico.
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The magic of usability tests is that you get to see what people actually do with a system (rather than what they say they do). This gives you great insights into how people behave and how to improve your design. But if your tasks lack realism you’ll find that people just go through the motions and don’t engage with the test — reducing the credibility of your results. Here are 6 ways to captivate participants with great test tasks
In general, you want concise and clear names for facets and facet categories that don’t get truncated in common usage. Below are some guidelines:
- Capitalization – Facet categories should follow headline/title style conventions for capitalization. Facet values are case-sensitive, so make sure the values use consistent casing throughout.
- Plurality - Use the singular form of the category name. For example: Rather than naming a category "Countries," use "Country."
- Brevity and Redundancy - Use as few words as possible to name categories. Keep in mind that the user is already browsing within the context of your collection, so any concepts or words which inherently make sense in that context can be taken as implied. For example: in a collection named "Major League Soccer Players," a facet named "Player Position" could be shortened to "Position." A facet named "Average Points Scored per Game" could be "Average Points / Game," or simply "Average Points." Finally, use the active voice to avoid unnecessarily long phrases.
- Acronyms - While they help with brevity, acronyms may add confusion. Avoid them where possible, unless you know that the target audience will be inherently familiar with them. Try using abbreviations instead.
- Numbers - Use Arabic numerals ("1, 2, 3") rather than spelling them out ("one, two, three"). They’re shorter and easier to read quickly.
- String vs. LongString - LongString is a special type only used for info panel content to be wrapped onto multiple lines. LongString should be used for any text longer than a few words.
- Sorting Behavior - Sorting and grouping is strictly alphabetical. That means that when values starting with "The" appear in PivotViewer, they will be grouped with the T’s.
"My goal was to prepare them for that project by communicating two key things:
1. Make things for people.
2. Those people aren’t you.
Before the class, Ben warned me about the attention span of his students, and boy was he right. The thing about high school kids is they won’t pretend to be interested if you’ve lost them. Adults at a conference will gaze forward in your general direction, but high school kids will just put their head on the table and go to sleep. If you ever want to get a real gauge of how interesting a speaker you are (or how well you’re really communicating), I highly recommend it, humbling as it is. "
"Features are good. They set Firefox apart from others, and attract users. What bothers users is features that don’t have a mature user interface. The solution should be to fix the interface, not drop the feature."
“Implicit human-computer interaction is an action, performed by the user that is not primarily aimed to interact with a computerized system but which such a system understands as input.” [5]. This is opposed to explicit HCI, where “the user tells the computer at a certain level of abstraction (e.g., by command-line, direct manipulation using a GUI, gesture, or speech input) what she expects the computer to do.” [5]. An example of explicit HCI is using a direct-manipulation graphical user interface (GUI) to drag a file from one folder to another, in order to have the file become located in the target folder. Implicit HCI, on the other hand, requires computers to observe and interpret what the user is doing, via sensors, which may be implemented as physical sensors (e.g., GPS) or digital sensors (e.g., file usage monitor)."
http://blog.mozilla.com/faaborg/2010/04/22/dont-talk-about-users/
How can we convert current developers in open source projects to have a skill set equivalent to what academia or a corporation would consider to be formally trained user experience professional? The approach we propose consists of embedding HCI concepts and practices directly into the tools that control an open source community’s work flow.
"La revisión bibliografía permite que centremos nuestra investigación mediante la consideración de trabajos anteriores. Para ello, lo primero que debemos hacer es identificar los términos o “keywords” que van a guiar nuestra investigación, estas palabras clave son las que nos permitan localizar los trabajos previos.
Es importante identificar los trabajos previos publicados para poder focalizar, definir, contrastar o aprovechar la información obtenida, y por que así ayudas a que crezca el cuerpo teórico del HCI."
Part of the Novel Input & Output Project
A menu system often serves as the core interaction workhorse of an application. We have researched and productized a few solutions that enhance the user’s experience. Most notably is the marking-menu which allows a user to perform a menu selection by either popping-up a radial menu or by quickly making a straight mark in the direction of the desired menu without popping-up the menu. Other investigations have focused on providing efficient access to a large number of menu-items (the HotBox), menus for pen computers (tracking menus), for rapid tool switching (pieCursor) and multitouch environments (multitouch marking menus).
"Nunka asetaremo ke potensia etranjera token kabeyo de letra eñe.
Eñe rrepresenta balore ma elebado de tradision ispanika y primero kaeremo mueto ante ke asetar bejasione a simbolo ke a sio korason bibifikante de istoria kastisa epañola unibersa."
Event-driven programming is widely used in [[graphical user interfaces] because it has been adopted by most commercial widget toolkits as the model for interaction. The design of those toolkits has been criticized for promoting an over-simplified model of event-action, leading programmers to create error prone, difficult to extend and excessively complex application code:
Such an approach is fertile ground for bugs for at least three reasons:
1. It always leads to convoluted conditional logic.
2. Each branching point requires evaluation of a complex expression.
3. Switching between different modes requires modifying many variables, which all can easily lead to inconsistencies.
Instead of a low level action-reaction, Miro Samek proposes a better approach using finite State Machines to control the interaction logic necessary to define the state changes to incoming events. Hierarchical State Machines have also been proposed as a high-level model for reactive programs. The UML language in particular provides a complete specification to represent state machines.
Some alternate implementations:
http://accu.org/index.php/journals/252
http://www.eventhelix.com/RealtimeMantra/HierarchicalStateMachine.htm
ExplorerCanvas: http://code.google.com/p/explorercanvas/
One using SVG (Scalable Vector Graphics): http://me.eae.net/archive/2005/12/29/canvas-in-ie/
FlashCanvas - using Flash as a bridge: http://www.azarask.in/blog/post/flash-canvas/
The folks at Cappuccino use combinations of various Technologies to accomplish what canvas can do on all browsers. http://cappuccino.org ( http://280slides.com is an example of this.)
Simulated 3D with 2d context
http://www.tapper-ware.net/canvas3d/
http://www.benjoffe.com/code/demos/canvascape/
finding creative solutions to the question: "Reinventing Tabs in the Browser - How can we create, navigate and manage multiple web sites within the same browser instance?"
SenseBot for Search Results Page adds SenseBot capabilities to your Google searches. After you add the extension to your browser, it becomes seamlessly integrated with Google results page. When you do a search on Google, a cloud of key concepts appears on top of search results. You can click on a concept to do a subsequent search, focussing on the concept. You can also click the "Show text" button, and a text summary of content of the search results will be generated and displayed on the same page.
Note that summarizing multiple pages as a whole makes more sense for informational queries, i.e. those where you are trying to understand a concept or get an overview of a topic.
• SenseBot Summarizer is an experimental plug-in that generates a text summary of the Web page you are viewing. After you add the extension to your browser, a menu item called "SenseBot" is added to the browser Tools menu. Also, when you right-click on any page, "SenseBot" appears as one of the actions. When you select the action, a popup window is opened containing a text summary of the current page, generated by SenseBot.
Note that there should be a sufficient amount of text accessible from the page in order to generate a summary. Sometimes even pages that look like they are full of content do not fit this requirement (e.g., Yahoo.com). In this case the summarizer will inform you that the text is too short to summarize.• LinkSensor semantically analyzes blog posts on-the-fly and highlights key concepts in the text. When your mouse is over a highlighted word, a small balloon shows up suggesting other articles from the blog related to the word. After you add the extension to your browser, a menu item called "LinkSensor" is added to the browser Tools menu, and is also available in the mouse right-click menu.
If you are a blogger or a publisher, you can get LinkSensor setup for your blog.
Now this may come as something of a surprise if you are primarily involved in HCI, but these questions are profound to software and web site developers since most will never have considered user interaction in this way
- How do users know their goal is attainable?
- How do users know what to do?
- How will users know they have done the right thing?
- How will users know they have attained their goal?
Integrar en un menú de cada aplicación un diálogo estándar (como el Visor de Ayuda o el About) que permita conectar directamente con las conversaciones de los usuarios, filtrados por cada aplicación.Esto permitiría:
A tool that can turn a Microsoft Visio™ project into a webpage. It uses the existing “Save as Webpage” feature, but while this function produces just a set of static images inside a frames structure, VisDynamica is supposed to make the result much closer to a real-life website.
