Archive | January, 2013

Five Things to Look for While Testing a Mobile App

Have you ever wondered what kind of effort goes into building a mobile app for a smart phone?

When a professional tests a mobile app, he or she must do the job thoroughly- failure to do will almost always result in crucial problems being overlooked. To ensure that the application tester catches all problems there are five things they must look for during the testing process.

Make Sure the App Loads Quickly

One quality the tester must look for during the testing process is whether or not the mobile app loads quickly. If the app is loading slowly, then the tester needs to look for what is causing this problem. Some issues that may cause an app to load slowly are cluttered graphics, coding errors and bugs. Once the tester finds whatever is wrong, these problems need to be reported and corrected.

One Hundred Percent Accessibility

Another quality that the tester needs to check for is if the app is one hundred percent accessible to people with disabilities. In order for the app to be accessible, it must be able to work with assistive technology that makes mobile devices and smart phones accessible, such as screen readers, screen magnifiers, voice activated technology and Braille displays.

Check for Bugs

During the time the app is being tested, the tester needs to examine it with a fine-toothed comb to see if there are any bugs. Sometimes, the tester will need to check two to three times before he or she is confident that all the bugs are ironed out because at times, bugs can be missed during the first testing phase. Whatever bugs the tester finds, he or she needs to carefully report them, so the developers will best know how to fix them.

Check for Compatibility Issues

The mobile app also needs to be compatible with the device it is made for as well as other applications. Many apps will need to work with other apps on a mobile device, and compatibility problems can truly ruin a user’s experience. If the tester finds compatibility problems, he or she must carefully report them to the developers, so they will have an idea as to how they will address these problems.

Ease of Use

Finally, the tester needs to determine whether or not the app is easy to use. Some questions that the tester will need to be able to answer in order to make this determination are:

1. Are the app’s controls/options/buttons easy for the user to access?
2. Is it easy for the user to access the functions that the app was designed to do?
3. Is the app designed for the appropriate skill level? For instance, if the app is designed for a toddler to play with, is the skill required to use the app appropriate for that particular group.

If the tester keeps these five things in mind while testing a mobile app, then he or she can be sure the app is being tested thoroughly. Once the tester and developers are confident that the app passes all tests, then it is ready to be released.

Posted in App Development, APPLE, Droid, Ipad, Ipad development, IPhone, Iphone app development, Mobile App Development, Software Development0 Comments

The Use of Amplifiers in Fiber Optics

Most experienced network administrators, network engineers and cable technicians have a solid understanding of how fiber optics are used to transmit data / information.  While working with fiber hands on is a niche area reserved for those that specialize in cabling such as professional cable contractors and select employees from cable companies and phone companies. For anyone interested in learning a little more about fiber beyond text book theory this is a good article to better explain some interesting real world fiber optic facts.

Without fiber optic amplifiers, a signal on a network can only travel a limited distance. The average distance a signal can travel through a fiber optic cable without amplification is approximately 124 miles. This short range is not suitable for wide area networks, thus amplifiers are necessary in order to allow a network to function properly.

Three Places Amplifiers Are Commonly Used in Fiber Optics

There are three places where fiber optic amplifiers are most commonly used as it concerns fiber optic transmission. Amplifiers are used to boost the power of a signal before transmission over the optical cable even begins. This serves the purpose of extending the distance of the signal before any subsequent transmission is required. Line amplifiers are set up at carefully planned places along a network in order to maintain signal strength. It is these amplifiers that facilitate a signal’s long distance travel, and these amplifiers can keep the signal traveling for hundreds or even thousands of miles. Finally, Preamplifiers are used to raise signal levels upon reaching the input of optical receivers. The purpose of this is to facilitate adequate signal detection.

The Design of Fiber-Optic Amplifiers

Each type of amplifier is designed differently because they each serve different purposes. For instance, power amplifiers are designed to facilitate high gain. Preamplifiers are designed to keep noise to a minimum, and low noise levels are essential for these amplifiers to work properly. Because line amplifiers are required to enable signals to travel long distances over networks, they are constructed to keep noise levels low and allow for high gain.

Other places fiber optic amps are commonly located or used

There are other places on a network where fiber optic amplifiers are set up. A typical place other than the three aforementioned is in a switching node in order to make up for any loss that may occur in the switch fabric.

A Short History on Fiber-Optic Amplifiers

The invention of fiber-optic amplifiers is not a recent one. Most may think that it is, since the hype about fiber-optic networks has only been going on for the past 7 years or so. However, the first amplifiers were created in the year of 1987. These were called Semiconductor Optical Amplifiers, and they did not function well enough to impact signal transmission. These amplifiers were not nearly as advanced as they are now.

With the improvement of amplifiers over the years, a signal can travel over networks almost endlessly. These improvements were not made until recently, as researching and improving amplifiers was abandoned for the past couple of decades. Since attention has been given to amplifiers again, fiber-optic communication has improved dramatically and is becoming commonplace around the world.

Jason Kane from Orlando Florida writes about internet technology and fiber-optics from distributors like FluxLight.

Posted in Cable Company, Fiber amplifier, Fiber Optic Cable, Fiber Optics, Network Cable, Networking, Orlando Cable Contractor, What is?0 Comments

You need a touchscreen to really use windows 8

Before you run to a computer store in Orlando Florida or anywhere for the matter and buy a Windows 8 laptop or desktop computer you need to read this. Microsoft’s Windows 8 best features are not going to do you one bit of good unless you specifically have a touch screen computer or monitor.

If  you intend to use your mouse and keyboard then its best to stay far away from Windows 8 and use another operating system for your specific needs and wants.

The ability to tap, touch, pinch, and swipe your finger across a touchscreen computer – laptop is where the Windows 8 operating system really comes to life. You can still use Windows 8 without a touch screen monitor however that’s the same principle as tossing your TV remote control aside and physically getting up off your couch every time you want to manually change your TV station.

Remarkably few people are actually opening their purses or wallets to purchase touchscreen computers and or laptops. Just 7% of Microsoft Windows laptops sold through December of 2012 were touch screen computers.

One challenge is there are not many high quality touchscreen laptops on the market today. To give you an example. The retail giant Best Buy offers more than 700 different laptops for sale through local retail stores and online. Only 30 or so of those laptops have touch screens and only a handful of those 30 different make and model touch screen laptops are high quality. Most are made up of low quality hardware and are considered to be junk. Only two of the the 30 touchscreen laptops earned a high quality rating from consumers who bought them.

Another downside to these touchscreen laptops is they will cost you on average of $120 to $180 more then a non touch screen laptop computer. The most affordable touchscreen laptop is a 11.6 inch Asus VivoBook which sells for around $500 give or a take a few dollars while the full size touch screen laptops are around $625 and up.

Granted that’s not a huge expense for a laptop, this does provoke consumers to really think whether they feel its worth it to shell out the extra money for having a touchscreen laptop or touchscreen computer system.

Touch screen monitors and laptops are an are not an afterthought in Windows 8. Touch screens are the core to the entire Windows 8 operating system. The whole Windows 8 OS virtually begs users to touch the computer screen with their fingers. Windows 8 is outright clunky and cumbersome when used with a keyboard and mouse and will leave computer users feelings disappointed and left out unless they are using a touch screen laptop or monitor.

Getting people to adopt to touch screens on their desktop or laptop computers wont be an easy chore because people are use to using a real mouse and keyboard to control their computers.

Windows 8 is pretty cool yes but the reality is they are not going to replace desktop computers in the offices of businesses and other organizations. Windows 8 is best for home use for fun and entertainment.

Today’s touch screen technology is being heavily dominated by today’s smart phones such as the apple Iphone, Droids, and tablets which has shown very little vendor and consumer demand for larger size touch screens needed for touchscreen desktop and touchscreen laptop computers. This means suppliers are not manufacturing many touchscreens for computer systems, which also drives up the price for touchscreen laptops and monitors.

 

 

 

Posted in Computers, Laptops, Microsoft, Operating Systems0 Comments


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