The Importance Of Cell Phones In Modern Society

Cell phones have become a necessity for many people through the world. The ability to keep in touch with family, business associates, and access to email are only a few of the reasons for the increasing importance of cell phones. Today's technically advanced cell phones are capable of not only receiving and placing phone calls, but storing data, taking pictures, and can even be used as walkie talkies, to name just a few of the available options.

When cell phones were first introduced to the public, they were bulky, expensive, and some even required a base unit that had to be transported along with the phone. Good reception was a major problem and in general, early cell phones could only be used in certain locations were the signal was particularly strong. As cell phone technology advanced, the difficult in using them became less of a problem. Today, cell phone reception has improved greatly due to the use of satellites and wireless services. As cell phones improved and became simple to use, the importance of cell phones increased accordingly.

Cell phones are the perfect way to stay connected with others and provide the user with a sense of security. In the event of emergency, having a cell phone can allow help to reach you quickly and could possibly save lives. However, the importance of cell phones goes way beyond personal safety. Modern cell phones are capable of internet access, sending and receiving photos and files, and some cell phones are equipped with GPS technology, allowing for use in most locations around the world and allowing the cell phone to be found or the user located in the event of loss or emergency.

Cell phone reception has become reliable and of high quality due to advances in wireless technology. Wireless service providers offer excellent packages and promotions for cell phone users. Finding a dependent service provider is no longer an issue for cell phone users. The expansion of the wireless service provider industry gives cell phone users a choice and the increased competition has caused a drop in prices of wireless cell phone service. The importance of cell phones goes way beyond the ability to make or receive phone calls. Cell phone users can instantly send data to the home or office, check for important email, use their cell phone as a PDA or calendar, and store photos which can easily be transferred to a PC or laptop computer.

Cell phone manufacturers have produced a wide range of cell phones, which sell for prices that range from very inexpensive to over one thousand dollars. The available options give users the choice of purchasing a basic cell phone to use simply for making calls, or choosing a complex, technologically advanced cell phone that can perform as many or even more tasks that a home computer. Over the past decade, the increasing importance of cell phones has made them almost a necessity for most people. Even remote and underdeveloped countries have some access to cell phone technology and wireless services.

The importance of cell phones has increased the competition in the wireless service provider industry, making cell phones very affordable and very easy to use. Cell phones have become almost a status symbol in addition to the convenience and security that comes from owning them.

PayPal IPN – Creating Listener Code to Process IPN Messages

You have finally decided IPN is the solution to your website application. You do not want to pay someone else to do it. It can not be that hard, can it? Where can you get some practical advice from people who have been there, done that. This article will answer these questions and help you decide if you are able to write that code. If you find it too complicated there are a few commercial products out there that will handle everything for you so do not lose heart if you find yourself stuck.

PayPal IPN

Instant Payment Notification is better known as PayPal IPN and is PayPal's interface for handling real time confirmation of purchases. A typical use for IPN is where you want to use the software to download.

PayPal provide 3 different types of account. Personal, Premier and Business. You will need Premier or Business to use IPN.

Listener

PayPal IPN messages are not synchronized with actions on your website. You detect IPN messages from PayPal with a piece of code known as a listener.

You specify the URL of your listener in your PayPal account's profile but you can override this for specific transactions when you setup a button or API operation. You can also temporarily turn off the sending of IPN messages, useful if your site is down for maintenance. They are still generated and stored until you switch sending back on again.

You must perform a number of checks on the IPN message received from PayPal.

  • Check the email address to make sure it is yours
  • Check that you have not already processed the transaction identified by the transaction ID
  • Make sure that the transaction's payment status is "completed"
  • Verify that the payment amount actually matches what you intend to charge

PayPal Sandbox

When you are developing your website you really do not want to be trying to get it working by experimenting on a real money system. Any early bugs in the system could leave security holes but even if you write perfect code it is best not to do your testing using real money.

PayPal provides what they call a sandbox, almost identical to the live PayPal system. You can setup fake customers with fake money and make as many test purchases as you want. The perfect system to fully test your web application.

There is a Sandbox Forum on the developer network. It's a great place for advice.

Testing your Listener

The Sandbox has an excellent IPN Simulator (under Test Tools) which lets you choose the transaction type, fill in all the parameter values ​​and send a test IPN to a specified address.

IPN History

PayPal provides an IPN history page under the My Account tab. Click on History to see it. It includes everything you want to know about each IPN message including the following Status values.

  • Sent: indicates that PayPal sent the message to your IPN listener
  • Failed: indicates that PayPal did not receive an acknowledgment to the message
  • Queued: indicates that PayPal is ready to send the message
  • Retrying: indicates that message was resent between 1 and 15 times and PayPal continues to be resend the message
  • Disabled: indicating that the message will not be resent because the merchant's account has been disabled

Conclusion

The best place to search for information is the PayPal Integration Center which has guides, code and links for everything to do with integrating your website with PayPal.

The one place you MUST visit is the PayPal IPN Forum on the developer website. As well as a constantly changing list of discussion topics about IPN, there are some good sticky posts about troubleshooting tips, IPN variables, template code etc.

PayPal IPN is a difficult subject but the combination of an excellent testing environment in the form of the sandbox and the good quality advice provided through the forums should make it possible for you to get your website application up and running.

A List of Clothing Fashion Don’ts

There are plenty fashion rules that have circulated for centuries, and these days, the old rules will not cut it. Today, you need to forget about the old rules of not wearing white after labor day and saving all of your shimmer for the evening. If you want to learn how to dress your body well and look better everyday, try to avoid the following brand new fashion don'ts.

Do not think function over fashion. If your excuse for not wearing your body better is simply that you are dressing for the weather or you just want to be "comfortable," it is probably time for a change. Do not just by oversized clothing that is frumpy and totally not figure flattering because you want to be "comfortable." If you take your time and try things on you will find that well fitted clothing that is appropriate for your body type actually is quite comfortable. If you get the proper size and the proper style, you can look good, be shielded from the weather, and feel comfortable.

Do not use size numbers alone to determine whether or not your clothes will fit you. Every boutique, department store, and clothing shop is going to have sizes on their outfits. Your size will not be the same in all stores, so get over it. Sometimes, even though you might feel bad about it, the appropriate size for your body will mean looking for a higher number in some stores than in others. It is much better to buy a larger size and look good than to wear something that does not really fit you, and will make you look bigger. If your outfits are busting at the seams, you will look larger than you are.

The final do not is this: do not think that your appearance does not matter. You might say that you do not care what other people think. The reality is, however, that if you have certain career goals in mind and you do not look the part, you will not get the part. Everyone, even if they try to deny it, wants the respect of others, especially at work. Dress to look the best that you can look in appropriate clothing for your profession. Do not make excuses or sell yourself short of the opportunity to look put together to potential clients and potential employers.

The clothing that you put on your body says a lot about who you are. Let it match who you are inside. Let the world know that you respect yourself enough to dress well.

A Recipe For Outsourcing Your Software Development

Outsourcing your software development can save you time and money if you know what you need. Too often US companies attempted to outsource without a good understanding of what their software should do, and this is the biggest cause of outsourcing failure. It is unreasonable to expect your outsourcing team to have a menu of software, pre-prepared, so you can just select the items you want.

Ever go to a restaurant with a picky eater? They tell the waiter in excruciating detail how they want their food prepared. And heaven forbid that the food arrives different from what was requested! Back to the kitchen it goes to be "fixed" to make the picky eater happy.

Sometimes US companies hire an outsourced partner as if they were going to a restaurant. They select the cuisine based on the flavor of the technology they require. Chinese .NET or Indian Java? How about some Russian C ++? Unfortunately there is rarely a menu for the exact items you might like to order from an outsourced team.

Are you approaching outsourcing your software like you are walking into a restaurant? Are you expecting the outsourcing team to advise you, like an attentive waiter, on the way your software should look, be prepared and presented to your customers?

Instead, bring your own recipe when you start work with an outsourcing team. Unlike your dining experiences, you can not ask for the daily special. You have to provide a specific description of what you would like to have, and how it should be prepared. Without such a recipe, your outsourced software development efforts can be starved for success.

Poorly specified software is often the result when "subject matter experts" are involved. Subject matter experts, or SMEs, know a lot about a particular subject, like IC design, business process workflow, inventory management, etc., but very little about designing software. SMEs can struggle to get their ideas encoded in the software. They need to work with someone that knows the best way to design and develop software.

Sometimes, there is a fear of getting bogged down in the details. Since some software executives are great with people, they feel much more comfortable hiring a person to handle the details. They know how to manage a person here, better than they can manage an offshore team of programmers in a remote offshore location.

One Accelerance client is in this situation. The CEO wants to outsource the development of a new software product. But there is no specification. In this case Accelerance is acting as a virtual CTO, responsible for the design, and development of the client's software.

The client is essentially saying, "Design the software for me, and I'll tell you if it matches what I am thinking." This can work because the cost of outsourcing is so low that rework and multiple design iterations are affordable.

This type of arrangement only works when paying on a Time and Materials basis. There is no way to offer fixed pricing because the end product is not defined.

Of course, not having a specification may not stop you from asking for a fixed price bid! In this case, you can outsource the creation of a specification that defines your software for a fixed price. Then the resulting complete design specification is used to create a second fixed price bid for writing your software.

Another factor comes into play when you pay a fixed price amount for a software design specification. You usually have to pay at least half up front. This is to protect the outsourcing company from delivering a specification for creating the software and then not getting paid.

Because software design often occurs at the beginning of a relationship, both parties seek to minimize their risk. You minimize your risk by selecting an outsourcing team with a proven track record and great references. The outsourcing team reduces their risk by getting partial (sometimes full) payment before starting.

There are multiple deliverables that should be produced during the design phase of creating your software, whether you do it yourself, or outsource the design:

* Marketing Requirements

* Storyboard Demo

* Functional Specification

* Multiple Release Milestone Schedule

* Detailed Task Schedule for First Release

* Detailed Design Specification (optional)

Unfortunately, software development has not progressed to the point where ready-made modules are available to order and combined to create your software. There is not yet a menu of choices available to anyone that is hungry for new software. Instead, you must provide your own recipe for what you need. The good news is low cost outsourced software design and development resources are now available to create your custom software to meet your exact specifications.