Sunday, September 13, 2009

How Aperture Works?

For now just how Aperture Works


var whiteCircle_mc:whiteCircle = new whiteCircle();
var leafA_mc:mcNewLeaf = new mcNewLeaf();
var leafB_mc:mcNewLeaf = new mcNewLeaf();
var leafC_mc:mcNewLeaf = new mcNewLeaf();
var leafD_mc:mcNewLeaf = new mcNewLeaf();
var leafE_mc:mcNewLeaf = new mcNewLeaf();

var leafAInit:Number = new Number(0);
var leafInitial:Number = new Number(0);
var leafRotation:Number = new Number(-72);
var leafA_mcX:Number = new Number(53);
var leafA_mcY:Number = new Number(175);

addChild(whiteCircle_mc);
whiteCircle_mc.x = 200;
whiteCircle_mc.y = 219;

addChild(leafA_mc);
leafA_mc.x = leafA_mcX;
leafA_mc.y = leafA_mcY;
leafA_mc.rotation = leafInitial;

addChild(leafB_mc);
leafB_mc.x = 112;
leafB_mc.y = 346;
leafB_mc.rotation = leafInitial + leafRotation;

addChild(leafC_mc);
leafC_mc.x = 292;
leafC_mc.y = 346;
leafC_mc.rotation = leafInitial + (leafRotation * 2) ;

addChild(leafD_mc);
leafD_mc.x = 347;
leafD_mc.y = 173;
leafD_mc.rotation = leafInitial + leafRotation * 3 ;

addChild(leafE_mc);
leafE_mc.x = 200;
leafE_mc.y = 65;
leafE_mc.rotation = leafInitial + leafRotation * 4 ;


////// Circle on The Top /////
var topCircle_mc:topCircle = new topCircle();
addChild(topCircle_mc);
topCircle_mc.x = 200;
topCircle_mc.y = 220;
topCircle_mc.alpha = 1;


///// Aperture Buttons /////
fOneFour.addEventListener(MouseEvent.MOUSE_OVER, oneFourF);
fTwo.addEventListener(MouseEvent.MOUSE_OVER, twoF);
fTwoEight.addEventListener(MouseEvent.MOUSE_OVER, twoEightF);
fFour.addEventListener(MouseEvent.MOUSE_OVER, fourF);
fFiveSix.addEventListener(MouseEvent.MOUSE_OVER, fiveSixF);
fEight.addEventListener(MouseEvent.MOUSE_OVER, eightF);
fEleven.addEventListener(MouseEvent.MOUSE_OVER,elevenF);
fSixteen.addEventListener(MouseEvent.MOUSE_OVER, sixteenF);
fTwentytwo.addEventListener(MouseEvent.MOUSE_OVER, twentytwoF);
show_mc.addEventListener(MouseEvent.CLICK, showCircle);
hide_mc.addEventListener(MouseEvent.CLICK, hideCircle)

show_mc.buttonMode = true;
hide_mc.buttonMode = true;

function oneFourF(event:MouseEvent):void
{
leafInitial = 0;
rotateLeaf();
}

function twoF(event:MouseEvent):void
{
leafInitial = -3.8;
rotateLeaf();
}

function twoEightF(event:MouseEvent):void
{
leafInitial = -7.6;
rotateLeaf();
}

function fourF(event:MouseEvent):void
{
leafInitial = -11.4;
rotateLeaf();
}


function fiveSixF(event:MouseEvent):void
{
leafInitial = -15.2;
rotateLeaf();
}

function eightF(event:MouseEvent):void
{
leafInitial = -19;
rotateLeaf();
}

function elevenF(event:MouseEvent):void
{
leafInitial = -22.8;
rotateLeaf();
}

function sixteenF(event:MouseEvent):void
{
leafInitial = -26.6;
rotateLeaf();
}


function twentytwoF(event:MouseEvent):void
{
leafInitial = -30.4;
rotateLeaf();
}


function rotateLeaf():void
{
leafA_mc.rotation = leafInitial;;
leafB_mc.rotation = leafInitial + leafRotation * 1;
leafC_mc.rotation = leafInitial + leafRotation * 2;
leafD_mc.rotation = leafInitial + leafRotation * 3;
leafE_mc.rotation = leafInitial + leafRotation * 4;
}

function hideCircle(event:MouseEvent):void
{
topCircle_mc.alpha = .0;
}

function showCircle(event:MouseEvent):void
{
topCircle_mc.alpha = 1;
}

/// I also used a class file to create Mouse Over effect. If you need that file, email me...

Saturday, July 25, 2009

Door2DoorDineInn:Home Page - Heuristic Evaluation

The site has some good qualities to it. Being able to search by restaurant or cuisine. Giving different types of ordering options. Customer's feedback and newly added restaurant.

The first thing that I noticed about the web page is that the homepage has a fold. More than 70% of a time viewer don't see the content below the fold. In this case, "customer feed back", "cuisines", "delivery cities", "newly added restaurant" and "share what you think" is not visible by most viewers.



How can we solve the issue.... lets start from the top, the header doesn't need all that space. It can easily be fitted on half the size. The "Mirror Effect" is cool but not good for a logo. The phone no and fax font size can be small and bold rather than italics and big.


The Navigation bar can be little smaller, probably 75% of the size. And with regular text rather than "italics" text. If you really want to make it different than make it all caps. When you "Mouse Over" the link, it has some effects. The effects looks like something wrong with script rather than an intentional effect.


"Door 2 Door Dine Inn provide customers the luxury of enjoying fancy cuisines without leaving the comfort of their home. We are an online food ordering service that delivers delicious meals from diverse range of local and out of town restaurants to your doorstep. Our online system gives our customers access to their favorite restaurants with just few clicks from the interactive menus provided."

The information is great but how many times do I want read this information.
Obviously not every time I visit the website. So why is it the first thing on the website. What is the main purpose of visiting the site? I want to order a food from my favourite restaurant or a type of cuisine tonight as soon as possible. I also want to know if there is any special going on in any restaurant.

I think a 3 pane design works for the site.

First Pane:
  • Log in information can be put on the left hand side with design like CitiBank where SignIn and Register in same place.
  • Search Function
  • Browse by cuisine
Second Pane:
  • Hours of Operation
  • How to Order
  • Delivery Cities

Third Pane:
  • Newly added restaurant
  • Customer feedback

The search button is good but by default you have to "select" a cuisine or restaurant, which adds another click. Make one of them a default based on what customer uses the most.

oo and the site name is good but the URL is too long. If possible try to get small URL like ddDineInn.com or DDDInn.com or something short.

Friday, July 24, 2009

Transit at Delhi Airport (Indira Gandhi International Airport)

Let me start by saying avoid transit the Delhi Airport (Indira Gandhi International Airport). If you really have to for whatever reason try to make it minimum. I was stuck at the airport for 8 & 14 hrs and o boy I had so much fun!!!

As you get of the plane there will be two guys asking where you are going. If you have a transit they will tell you to wait. You will probably be standing up for another 1/2 hrs depending number of passenger for transit. Once everyone is there they will ask you to fill a form and start processing the form. They start with whoever is the near to them. There is no systematically way to process it. If you can push through the crowd and come to the front they will do process your form, basically there is no line and if your think they will come ask you if you need any help you will be sitting there all day long.

Once the form is filled out they tell you "you're done, now wait". There is no waiting room or chair. I had no clue what I was waiting for or why I was waiting. Again you will be standing there for another 1/2 hrs till everyone form is processed. Once everyone form is processed they will tell you "follow me". I tried to ask the guy what we are doing next, he pretended he didn't hear my question. I found a lot of situations like that.

After we followed him for 10 mins he took us to a small room and said "wait here" and left. I thought probably some one will come to tell us what's the next step. But no, no one came. My flight was after 14 hrs and I didn't know what was going on. I ask a guy in uniform about what I need to do to get boarding pass for the new plane. He said, "wait here, tomorrow morning" and left. O by the way we reached there at 10:00 PM ... All the passengers who came in that plane had no idea what was doing on, nobody has a clue what need to be done next. A group of guys got into arguments with one of the employee who as walking by. They wanted some information and the employee said "wait here, 15 mins". No matter what the passenger asked he said "wait here, 15 mins" and left....

Finally, I was able to get some information about what was going on by asking a guy after buying some food from him. He was very helpful then the employee who worked for the airport. The room we were dumped on was a transit room.There was a desk with "transfer" name no one was there because it was middle of the night. We were not allowed to go anywhere beside that room. The airline company's employee comes to the transit room 3 hrs before the flight and screams your name and you follow him. They will come up to 2-3 times and if you are asleep at that time you will miss your plane. A person ended up buying a new ticket because he was asleep when they called his name. The transit doesn't have anything beside restroom, 2 canteen, a phone booth and currency exchange. If you thinking of using your laptop to watch movie on the transit you probably wanna carry some extra batteries as there is no electronic outlet.


If you have a long transit like ours than you probably want to go to a lounge. There are three lounges after transit room right before you reach security check point. The one we went to is the on the left side, I believe it a lounge of Indian airlines. You don't have to travel in Indian airlines to use this lounge. All you need to do is ask the front desk guy "how much?". I paid $ 60 per person to use the lounge for 10 hours. I asked for a receipt, as he put the money in his pocket, he replied the system is down. Later on I came to know that it's their side business. I suggest to go for a bargain. The good thing about the lounge is everything there is free computer with high speed Internet, wi-fi, food and unlimited drink. Might not be that bad of a deal if you drink a lot. But at the same time you don't wanna miss your flight cause you are drunk as a skunk.

Make sure you come down to transit 3 hours before the flight. You won't be able to hear the announcement as the lounge is quit sound proof. And the one list thing to be careful is on the security checking. There are two; first one before leaving the transit room and second before boarding to the plane. The first security will give you tags to put on your hand luggage but not on your handbag or a purse. Ask them for a tag even though they will say you won't need it.Because the second security will send you to back if you don't have the tag on you handbag.


In short, following are the things that you want to keep in mind.

  1. Don't expect to have a good customer service
  2. Transit room is very small, no source of entertainment or electronic outlet
  3. If you want to use a lounge, go to Indian Airlines Lounge and do some bargaining
  4. Put tag on everything you are carrying on the first security check point



Wednesday, June 3, 2009

Heuristic Evaluation Report of Microsoft Windows Live Mail

Windows Live is the collective brand name for a set of services and software products from Microsoft that offers several applications like calendar, photo, write, drive etc. Microsoft Windows Live Mail is one of the applications of Windows Live Family. It is a new free mail application that comes with Vista operating system. It is also known as the new Hotmail. In 1998 Microsoft bought Hotmail. Since then Microsoft has been trying to change the brand name to Windows family. The ture transformation of Hotmail becoming Windows Live Mail started back in 2004 and was finished by 2007. The Hotmail/Live Mail developer team has spent 5 and continuing years to enhance the application. It has gone through many beta phases and many feedbacks from customers. The new Live Mail application supposes to be the best free mail application. Has the application reached the peak where it has everything that a mail application need? Does it follow the Fitts’ principle of interaction design? Does it have good qualities of a Sovereign application? Does it uses good constrain method? Does it have good error prevention method? Or does it still new some improvement?



A traditional email application is used simply to send and receive emails. The scope of new email application is more than to send and receiving emails, it is more like an organizer, it is a contact book it is a news feeder, it is an advertising tool, it is a picture viewer, it is a video player and more. To included all these features it has to be a sovereign application that exploits rich input, outputs rich visual feedback, navigates easily and generous towards screen real estate. The application must have robust features that does not break an expert users "flow" and constrains a new user. Windows Live Mail is packed with all the bells and whistles that a mailing application should have, this evaluation is done mainly on the email feature.


Microsoft has rebranded the popular Hotmail with its own brand name as Windows Live Mail. The main users of the Windows Live mail are the hotmail users. It also gives opportunities to be able to sync Gmail, Yahoo mail or any POP3 mails. As hotmail users are the main targeted users of the application it has done a good job on interface design. It is consistent with any other Windows Live application and Hotmail. A hotmail user will have no problem using the desktop based Windows Live Mail application. The hotmail live and Windows Live Mail desktop uses that same design features. It has the same flow where the message folders start form left, message list on the middle and the reading pane on the right.



Once the application starts, it pops up a window with animation "Signing In". The animation shows that it is working on some process. Here the application does a good on use of status mechanisms to keep users aware and informed. By showing animated "Signing In" sign it does not abandon the user. The autonomy work great by not displaying a message that it is con¬necting to the server, it is checking the username and password, and it has been approved. Once singed in, it gives message by displaying the number of new message on status bar and in inbox folder. Here application does another good use of status mechanism to keep users aware and informed.


The application uses both Idiomatic and Metaphoric icons. Mail, calendar and contact function use metaphoric icons (figure 2a). These icons are mostly appreciated by a beginner or intermediate user. Whereas the functions those are used by experts as changing the layout and customizing the theme have Idiomatic interface (figure 2b). The application uses the universal terminology for naming the folder as Inbox, Drafts, Sent Items, Junk E-mail and Deleted Items that giving consistency with user expectations.


A user can know more information about the email message just by looking at the message list pane. Like if the email has been checked or not, if there is any attachment with the email, if it has been replied or forwarded, figure 3. Here the application has done a good job by choosing metaphors that enables users to instantly grasp the finest details of the conceptual model.
 
Windows Live Mail application does a good job on interface design and affordance. The buttons are used mostly are clearly marked what it suppose to do (fig 2.a). The buttons that are used seldom aren’t marked (fig2.b). More information about the button can be displayed when "mouse overed". It would be better if the buttons were labeled as there is enough screen real estate.


The three pane navigation for email works like a charm. The first pane has all the main folders as "Inbox", "Drafts", "Junk". Once the appropriate folder is selected it shows the message list that the folder consists. And once the message is selected it shows the full message on the third pane. The panes are adjustable if needed; a user can increase or decrease the size. Adjustable pane gives flexibility to the user to customize the application. The three pane design lets a user know where the user is, where he has been and where he has not been by showing the new message on bold type face.


One thing that could be improved on navigation feature is the "reply" and "forward" buttons. These buttons are the first thing on the navigation bar. After reading a message if a user wants to reply or forward the message, he/she has navigate all the way to top. It seems that the application is applying Fitt’s law, which states that the four corners are the fastest to pin point. However, when a user is reading an email, majority of the time the mouse pointer is in the reading pane scrolling the message. It is lot faster to click the button those are in the reading pane than go all the way up to the top menu. The change in reply and forward button also breaks the rule of consistency. Hotmail and web Windows Live mail has the reply and forward button on the reading pane. This is also true on most of the major email application like Gmail and Yahoo. Any new user who uses the Windows Live Mail for the first time will have trouble finding the reply and forward button. The most important consistency is consistency of users’ expectations.


The application is focused on intermediates and experts. It has options to customize the tool bar for expert users. Customize the layout and even pane. As the users are already familiar with Hotmail or Windows Live interface they can easily navigate the application for core functions. Once installed it ask for the username and password after that everything is automated. Between Five to Thirty minutes, depending on your mail size, it automatically configures all the necessary things; as downloading all the email to hard disk, downloading contacts, downloading the calendar events and downloading all the folders on set up. It shows all the process with message on the status bar. The message on the status bar helps on keeping the status information up to date and within easy viewing. One thing it misses is the email signature. An email signature needs to be same weather a mail is sent from web based mail or desktop application. Why the email signature isn’t automatically downloaded?

Windows Live Mail turns in to Daemonic Posture application from Sovereign Posture application when minimized, hence taking less memory and screen real estate. The Daemonic Posture application gives a good feedback by changing the icon from regular envelope to bright Orange envelope when ever new message is received. This type of feedback helps on users "flow".


The applcaiton does a good job on reducing the burden on human memory. If a user want to send an email to a recipient that is on the contact address all they need to do is type his/her first name and it shows the list of emails that begins what that letter and name. The good attribute of this feature that it shows the list of the email address that starts with the letter as well as the contact name. If a person’s name is Tom but his email address is dontknow@hotmail.com it shows the email address when we put "T" in the email address with contact name. The process of automation helps in reducing burden on human memory. Another good feature that the mail application has to reduce burden on human memory is keeping track of user that are in contact. If an email is sent from a user that is not on the contact list it adds a new button "Add Contact" on the reading pane.


There are several good feedback features in Windows Live Mail. But it misses feedback on one of the main function, sending email. Sending mail is done in a new popup window in this application. Once the send button is hit, the popup window closes. There is no feedback. When there is no feedback, users will not know if the email went through or not. Users may think, did the application crash? Did I hit the right button? Did it really go through? The only way to find it out is check the sent folder. There should be some kind of feedback saying that the email has been sent. A good way to feedback is to display a small message that shows for a second stating "sending" and closes itself. That way a user knows that right action has taken place.

Error happens all the time. A good application is the one that prevents from error to happen and if a human error occurred than one should be able to undo the error. Windows Live Mail does a good job on undoing errors. If a user marks a regular mail as a junk mail, the application gives an option to mark it as a safe mail. If a user deletes an email by mistake it can be retrieve by going to "deleted items" folder.


Windows Live Mail lacks forcing functions. If a user forgets to put email address before sending a message it shows a popup window with a message "The message couldn’t be sent. You must specify some recipients for the message", figure 5b. At the same time if a user puts some a random word it gives two error messages. First message is "No matches found" with a contact book icon on left. Once the "Ok" is clicked it gives a second popup message saying that the message couldn’t be send. These issues can be easily fixed with forcing function.


Another error that applcation shows is, "Windows Live Mail did not shutdown correctly. The last time you ran Windows Live Mail it did not exit correctly. In case this was due to a problem with the last message you were viewing, the message is not being shown. To view this message anyway: Click here.", fig 6. If the message can be shown anyways shouldn’t it take it directly to the message and show a message on the status bar that it wasn’t shut properly if the user really wants to know.
Windows Live Mail gives good customization feature to expert users. But it fails to do an undo feature. If a user in not satisfied with his customized pane and wantst to go back to the initial setting there is no "Restore the initial set up button". One has to manually make all the changes. That is if the user still remembers all the default setting. It is a burden to a user’s memory and waist of a user’s time.


The application is a Sovereign application takes the good use of screen real estate. Application is used on computer hence it gives a good clear visual appearance. The application consists of three panes. First pane occupies the least space which shows the main folder like Inbox, Drafts, Sent Items, Junk e-mail and Deleted folder. The second pane shows the list of message in folder that is selected on first pane. It shows the main attributes that I critical to the message like sender, subject and date when it was sent. Moreover, it also gives other information if applicable like if there is any attachment, if the email has been forwarded or replied. Once the email is selected it shows the details about the email on third pane which takes a big chunk of the screen real estate.


The application follows a good logical path based on the Western Language Style. The main folder starts from the top left and follows towards right and downwards. What makes it a good application is that an expert user can changes the layout pane to his favor like putting the message underneath the message list. However, it does not change the pane reading style from right to left. Hence it isn’t targeted to all users who are use to right to left reading style.


The application uses a good color schema which goes with other products like Vista and other Windows Live Application. The color and the visual appearance bind it together and show it to be the part of a same family. The application does good job on the use of typography and color. The color scheme is cool and soft. It uses the cool hue which is recommended for Sovereign application. It has different color theme available if need for color blindness. It utilizes the rich input which is necessary for a sovereign application without cluttering it and scaring the first time users. However this application does not have keyboard shortcut that an expert user expects.


Application uses the typography to its full extend. Like the unread message are on bold typeface as they requires more attention, fig 7. Is also gives quick clue on folder pane by displaying the number of new messages on blue colored text. Same way the color of the envelopes of unread message is yellow and the icon shows a sealed envelope. The messages that are marked with high priority as shown with Red exclamation sign that stands out the most on the email. Any text that has link has different color and is underlined showing the users that it has a hyperlink.

Windows Live Mail has lots of good features that a user expects. It does a very good job on its core application. However, there are few things that it can improve on.

An email application is used is for sending and receiving email. Once an email is read chances are it is mostly replied and sometimes forwarded to a different recipient. Windows Live Mail fails here by putting the reply and forward button on top on the window. It should be in the reading pane when a message starts and after the message is finished.

Windows Live Mail, being a sovereign application needs to have good features for expert users. One of the most useful tools to an expert user is shortcuts. Windows Live Mail lacks shortcuts. It should have shortcuts for its core features as replying message or checking new emails.

Feedback is very important on an application, especially if it’s on its core function. Windows Live Mail needs to improve on sent feedback. To send a new message a new window opens one the message the send button is clicked the popup window closes. The only way to know if the email was sent is to go and check the sent folder. The application can do a better job here by giving quick feedback stating that the message was sent. A quick message on the status bar will work.

The application can improve on naming some of its function. Like "new" and "sync" button can be improved. To compose a mail one has to click "new" button. The button could be renamed as "compose" which is more consistent with used terminology. If a Yahoo or Gmail user switches to Live mail the will have trouble understanding the term "new", are we looking for a new mail or are we opening a new window? In the same way the "sync" button can be renamed as send and receive email. The button does sync with the web based email and updates all the email, contacts and calendar events but a user does not need to know what happens in the background. Simply send receive or update would be better.

Windows Live Mail can use some constrains. A user is able to hit send button without a valid email address. Once the sent button is clicked it pops up two error message windows. This can be easily avoided by checking the email address at first. If the typed email address has @ and then only make the send button active or else deactivate it.

Windows Live Mail is a very good email application. It has lots of good features like contact, calendar, rss feed, auto sync that make it appealing to a user. However, it fails in some basic constrain functions. By fixing mentioned issues it can be one of the top email application.

Saturday, May 23, 2009

Assignment 3 Research Paln

Guys, I was finally able to get to assignment. As discussed we will be doing the usability test of the iTunes software. The research will be on downloading a song, loading/syncing to iPod and forgot the third one.... :) As I recall, we need to test at least Three features.

Since there are 3 sections, each of us can tackle one section

Section 1: Looks like Mike would be the best one for this as he know lot about iTunes, its features pros and cons.

Section 2: Manussawee, do you mind taking this one.... as I am verying interested in doing Research protocol...

Section 3: and I, Rexon, will take care of the third one....


If we can post each or our task by Monday, we will be able to cross check each others work and imporve if needed.

Thanks,
Rexon

617-642-6555

Wednesday, May 20, 2009

WB wiki

I think pb wiki is a good website to look at too. www.pbwiki.com.

Sunday, May 17, 2009

Assignment 3, Final Project

Hi guys,

I believe that this will be the best way to discuss about our final group project. If you feel that this won't work and have a better idea feel free to comment or shoot an email to me.

For now, do you have any application or website on mind that we can use for our Final Project. I did my second assignment on Windows Live Mail desktop application. It has few problems but I want redesign a software or application that is really crappy. What do you guys think about it? Do you guys have anything in mind? Lately, I haven't tried any new application.....

I will post, if I think of something else.... Even though there isn't anything due for next week I wanna head start the project with full throttle....

Tuesday, April 21, 2009

Assignment 1

Rexon Shresth
Matt Carrano
Designing for Usability and Human Interaction
4/29/2009

Device Review of “AirWick Freshmatic” Based on Conceptual Model and Cognitive Principles

The core function of “AirWick Freshmatic” is to disburse fragrance and eliminate order. The uniqueness of the device is the built in timer where a user can control the fragrance release time between 2, 9 and 18 minutes interval. The extra feature is the express button which can be used if you need extra fragrance. “AirWick Freshmatic” does a good job on conceptual model but affordance, mapping and feedback can be improved a lot.

Conceptual Model:The exterior of the device looks appealing and goes with modern decor. The express function in intuitive as it is right in front
and different color and labeled “Express”. The other function, timer, is not used often and is inside the box. The timer is number and is easily readable. On the top there is a button with an arrow which indicates where is supposed to be pushed. On the back, it has hole so that one can hang it in the wall. The device works well and has lots of good features like express button, timer switch. The device gives predictable results. The express button give extra burst of fragrance, and has button like feeling. A user can predict that the fragrance is sprayed from the hole that is in front of the device. The universal wall mount on the back works the way it suppose to.

Affordance:Device does what it supposes to do spraying fragrance in time interval of 9, 18 and 36 minutes. It also gives you an extra push button on the front in you need some extra fragrance in between the timer. User can easily assemble all the components like battery and canned fragrance. Most of the components are marked properly and is in standard form when applicable. Like the battery holder and can holder and the wall mount hole in back. You cannot make a mistake on where to insert it. While assembling you can easily set up the timer for what you want. They are clearly marked with numbers for minutes. The express button is right in the front, visible, distinct and easily accessible whenever you want an "extra boost of fragrance". The battery holder has illustration on how to place the batteries. It also has a good illustration on how to insert the canned fragrance and how it is not suppose to be inserted.

Mapping:Device does a good job in mapping by putting the express button right on the front. It can be has to be easily accessible when needed. Whereas the timer switch is hidden inside where is hardly changed. It helps the device to look appealing and elegant. One thing the device misses on mapping is the fragrance quantity indicator. There isn't any indicator to indicate if the fragrance is low or is about to be finished. The problem can be easily solved by putting some count function in the unit. Like, when fragrance is sprayed 60 times it will indicate with some event. Like another led light labeled with low fragrance (Figure 1.a). That way user will have time to buy more fragrance. The other mapping issue is the green light on the top. It doesn't have any label. One need to look at the manual to figure it out why is it blinking. This issue can easily be solved by labeling “low battery”(Figure 1.a) The device opening mechanism is designed very nicely. It has a button on the top with an arrow pointed which shows which direction we are suppose to move to. It also has two curved spaces on left and right sides which give easy grip to the device while opening it.

Feedback:­­The device gives a good feedback on the main function. Whenever it sprays the fragrance, it makes a sound of spray and you can see and smell the fragrance. The express button has a nice button like feel. It gives an imitate feedback by spraying the fragrance. The time interval switch makes the interaction audible by giving “click” sound when you change the minutes. However there is an issue with timer. There is no way of knowing when the device will spray the fragrance. Hence it could be dangerous. This issue can be easily solved but putting some feedback event like a sound. It needs to beep 2 seconds before it sprays the fragrance. The sound will have user to be alert and not be near to the spray direction.

Overall the Airwick Express does a good job on its core function by placing the express button in front and timer button inside the box. However the product can be more useable with by placing label next to the green light, by adding second LED light for low fragrance and adding a sound function for a spray warning feedback.

Saturday, April 18, 2009

Hello world!

With the changing time, I am trying to get into cloud computing for all my projects. This is my first post as a test... Hello World !!