System Analysis and Design

SYSTEM ANALYSIS AND DESIGN

What is system analysis and design?
System development can generally be thought of having two major components: systems analysis and systems design. In System Analysis more emphasis is given to understanding the details of an existing system or a proposed one and then deciding whether the proposed system is desirable or not and whether the existing system needs improvements. Thus, system analysis is the process of investigating a system, identifying problems, and using the information to recommend improvements to the system.
System design is the process of planning a new business system or one to replace or complement an existing system.
Analysis specifies what the system should do. Design states how to accomplish the objective.
After the proposed system is analyzed and designed, the actual implementation of the system occurs. After implementation, working system is available and it requires timely maintenance.
Role of System Analyst
The system analyst is the person (or persons) who guides through the development of an information system . In performing these tasks the analyst must always match the information system objectives with the goals of the organization.
Role of System Analyst differs from organization to organization. Most common responsibilities of System Analyst are following
1) System analysis:
It includes system's study in order to get facts about business activity. It is about getting information and determining requirements. Here the responsibility includes only requirement determination, not the design of the system.
2) System analysis and design:
Here apart from the analysis work, Analyst is also responsible for the designing of the new system/application.
3) Systems analysis, design, and programming:
Here Analyst is also required to perform as a programmer, where he actually writes the code to implement the design of the proposed application.
Due to the various responsibilities that a system analyst requires to handle, he has to be multifaceted person with varied skills required at various stages of the life cycle. In addition to the technical know-how of the information system development a system analyst should also have the following knowledge.
* Business knowledge: As the analyst might have to develop any kind of a business system, he should be familiar with the general functioning of all kind of businesses.
* Interpersonal skills: Such skills are required at various stages of development process for interacting with the users and extracting the requirements out of them
* Problem solving skills: A system analyst should have enough problem solving skills for defining the alternate solutions to the system and also for the problems occurring at the various stages of the development process
The users of the system
The system end users of the system refer to the people who use computers to perform their jobs, like desktop operators. Further, end users can be divided into various categories.
* Very first users are the hands-on users. They actually interact with the system. They are the people who feed in the input data and get output data. Like person at the booking counter of a gas authority. This person actually sees the records and registers requests from various customers for gas cylinders.
* Other users are the indirect end users who do not interact with the systems hardware and software. However, these users benefit from the results of these systems. These types of users can be managers of organization using that system.
* There are third types of users who have management responsibilities for application systems. These oversee investment in the development or use of the system.
* Fourth types of users are senior managers. They are responsible for evaluating organization's exposure to risk from the systems failure.
Now we know what are systems and what is system analysis and design. So let us take a case in which we'll apply the concepts we have learned in the chapter. The case would be referred to as and where necessary throughout the book and in this process we will be developing the system required.

iPod Calms My Obsessional Personalty

IPOD-CALMS

I am bipolar, and as such, suffer from certain obsessional behaviour problems. These range from checking my emails twenty times an hour, to how I organise my music.
The way I listen to music has changed with the times, and my methods of classification have also changed. Where once all my music was filed alphabetically on records, tapes and cds, it is now all in folders on my iPod. I can listen to, and amass, seemingly unlimited amounts of music. Equally, there seem to be endless options as to how I can arrange said music.
However, on examination, my methods have remained similar. I used to make mixed tapes - spend hours hunting for, and selecting perfect tracks. The inspiration generally came from having listened to enough new good music that I was no longer happy with the old tapes.
Making a tape was always a precise and time consuming operation. Working out what would fit into ninety minutes, making sure there were no gaps, no jerky starts, rewinding and checking. And I had endless rules. For example, I wouldn't put two tracks by the same artist on the same side, the best tracks had to be balanced out through both sides, and it was not acceptable to have a track run out on the end of the side.
Now I am part of the iPod generation, I have playlists. Gone are the days of precision and commitment. On an iPod, any decision can be reversed, tracks can be added pretty much instantaneously, and the only time limit is the memory of the iPod (which is no comparison with a ninety minute tape).
But, I still have my rules. I still make a new playlist when I have a glut of new music. The only difference now is I have one overall playlist which everything gets added to. I don't delete my playlists. The same way I have kept all my mixed tapes, my playlists are soundtracks to certain periods of my life. I also don't delete tracks from my lists. Once it has been committed, it stays. In the same way with every mixed tape I made, there was one annoying track which I always wished I'd never added, the same is true of my playlists. Whilst there is no logic to not deleting the offending track on my iPod, I never do.
However, because of the speed of making lists, there are now so many possibilities. I can make a list for every mood, for every eventuality. Sometimes, I feel overwhelmed by the range of options and sit in front of the computer, motionless, lost in thought over the next best way to tackle the classification of my music.
Yet, despite this, and despite the wistful nostalgia for the tape deck collecting dust in my Grandma's cellar, I wouldn't want to go back. My obsession addled brain loves the flexibility and speed. And, as with so much technology, I couldn't imagine living without it.

Proxy Templates

PROXY TEMPLATES

Proxies let the users surf the website from blocked location like a school, university library or an organization. They keep you safe and secure by maintaining your privacy. In simple words, the proxy servers hide your identity and access blocked websites on your behalf. On the web network, there are a lot of websites which offer features like file-sharing, instant messaging or leaving comments for the user's profile, and a lot of schools and organizations have blocked such websites to be accessed from their locations to restrict people from logging in to these websites.
The development of proxy servers has a technological advance over these restrictions. These proxies let you access websites from restricted locations and are a source to bypass secure sites from blocked locations, as they have the ability to bypass the network firewalls and filters. These proxy servers enable the users to surf the internet from blocked servers and are compatible to surf through sites which have audio and video streaming platforms like Youtube.
Another advantage of a proxy server is that the chance of getting virus, spyware and other malicious scripts is reduced, and as a result your computer becomes a safer and reliable machine. A lot of web sites offer the proxy servers and most of them provide proxy templates as well. Designing a proxy template is not an easy task. Considering this fact, a lot of websites offer pre-designed proxy templates for you. These proxy templates can be downloaded and are simple and easy to use.
The downloaded proxy templates are free of cost, but most of the host websites may require you to back-link to their websites. PHP and CGI proxy templates are also available on such websites. The downloaded files for the proxy templates and themes comprise of the necessary designing and setup files and you can customize your website as per your requirement. Normally, the downloaded files are in zip format and you may need to extract the graphic files, images, fonts, Photoshop files and the script files. To avoid any misuse of the script files, the configuration files are available in the download which lets you customize the template, as you may require, and edit the text files like the Meta keywords, description and titles.
The PHP proxy and the CGI proxy provided are updated versions and are fully up-to date with the required technology. The host websites offering these proxy templates may allow you to put a link to download the templates on your website too based on the condition that the site is linked back to the host website.

Online Or Remote Computer Repair

ONLINE OR REMOTE COMPUTER REPAIR

So, you have bought a computer and want to get it installed by someone who is perfectly aware of the technical intricacies involved. For a few months, you found it running amazingly. But sooner or later, you will see error messages appearing or an application failure. Nowadays, there are numerous 'computer first aid' procedures that you can use to solve your computer problems.
Whether your computer had frozen or crashed or you are facing any application failure, your personal IT department is just a call away. Yes, you guessed right. The article discussed about online technical support services. The support workers take your problem into their account on the very same moment thereby solving your computer blues in no time. The technicians diagnose the errors and also maintain a complete record of everything that they and results. It helps them to make a screenshot as a record. The screenshot displays the exact error message, with the code numbers which serves as helpful information for the Computer Repair expert.
Calling online tech support resources is a good option to save time and money. There are some resources which send their technicians at your premises whether home or office to repair the computer. However, this option can turn out to be extremely expensive as they generally offer per incident pricing. On the other hand, online computer repair saves you money in the long run, since the technicians are working from their own location.
Talking about online computer support, you meet a remote computer support worker online who can watch everything going on your PC screen while working on your problem. Also, you can even assume control anytime, just in case you feel that there is a breach of security. As far as phone support is concerned, the instructions are given from a remote location and you follow these instructions to fix your PC. Most of the remote computer repairers disconnect the connection program, until and unless you want to reinstall the program for future use. Although the entire method is popular, it is always preferable that you buy services from reputed computer support company like iYogi technical services that ensure the safety of your data.
Online computer repair is of great help if you need instant solutions for virus removal, troubleshooting computer errors, software installation, disk cleaning, and PC optimization. Indeed, the success rate is also pretty high when it comes to online or remote computer repair.

Server Monitoring Goes Hand in Hand With Dedicated Servers

SERVER MONITORING GOES HAND IN HAND WITH DEDICATED SERVERS

Dedicated servers are machines for your IT system that you do not have to share. You can run your computer and web hosting systems on them without any other user sharing your server's resources. People making online payments on websites hosted on dedicated servers will notice the difference compared to a site hosted on a shared server. They will not experience the 'freezing screen' situation that you sometimes get with e-commerce websites hosted on shared servers. In these cases the site will not be sufficiently responsive to enable the transaction to go through successfully. There is another situation that sometimes occurs on e-commerce websites that are not hosted on dedicated servers. That is when the transaction will have gone through but the buyer may not be aware that it has because the site has stopped responding. So they will try again so that they end up paying two, three or more times for their purchase. That leaves them with a shock and a problem to sort out further on down the line and is not a good way of creating happy customers. Online merchants who have invested in a dedicated server will benefit from the added assurance of server monitoring services, to alert them of any problems with the service they have bought.
Dedicated servers are an important part of the online retailer's toolkit because of the security they bring. If you are processing customer orders and handling their financial information you have to be secure. You need to be able to ensure that no-one else can access your stored data and see and download details about your customers. From the customer's perspective it is reassuring to know that retailers have but measures in place like the use of dedicated servers to ensure that their financial information is being held safely. These kinds of retailers will be in a good position to build a firm customer base and win more customers. One of the worst things that can happen to a firm that sells online is to get their IT systems hacked into and their data stolen with details about their customers bank accounts and credit cards. There will be bad publicity which will reflect badly on the company and put thousands or even millions of people off using them. There may be compensation claims to pay. Server monitoring services go hand in hand with dedicated servers to help reduce these kind of threats.
And there will be the expanse of having to overhaul their IT systems and put protective measures in place. These measures will have to be more rigorous than necessary because the word will be out that their systems are not secure. So the hacker community will be out in force to see what they can get from the unfortunate online retailer. Firms with dedicated servers and server monitoring in place will know they are in a much better position that those with shared servers. Due diligence is important in business, so if something goes wrong, the blame can be deflected from firms that have taken the right precautions in this area.

Plug And Play HD Video Instant Messenger Coimg

PLUG AND PLAY HD

Communicating with your family and friends over an instant messaging program is one of the cheaper (or even free) ways to keep in touch across a few thousand miles. Unfortunately, technology hasn’t exactly caught up with the high definition craze that is sweeping across living rooms in Europe and the US - until now, at least. Quanta and ooVOO have teamed up to offer high-quality, real-time video communication over the Internet, as long as you have a HDTV or notebook . Guess girlfriends who are talking to their boyfriends over this new technology will have to put even more foundation on their faces in order to hide the zits that seem to sprout up like nobody’s business.

Hawking N/W Adapter-300N Wifi

HAWKING N/W ADAPTER-300N WIFI

Hawking Technologies has recently announced that it will begin to ship the first Wireless-300N WiFi Networking Adapter which sees an integration of second generation Dual Antenna Dish Technology for extreme WiFi performance. Shaped after a miniature satellite dish, the wireless adapter features a Hi-Gain dual-antenna feed design which is capable of boosting WiFi distances by up to 600% in comparison to standard embedded applications. I guess the folks at Hawking Technologies got it spot on when they remarked, “The problem with wireless networks these days is not the speed, it’s the distance. Regardless of how fast your network is, if you can’t reach the wireless signal, it simply won’t work. We understand this at Hawking and are very excited to announce the release of the HIFI Adapter. Our second generation Dual Antenna Dish Technology builds from our very successful Wireless-G Dish antenna design and boosts the performance in both speed and range. The result is the most powerful 802.11n USB network adapter on the market.”

Apple Kills Xserve Raid

APLLE KILLS XSERVE RAID
If you’re a big fan of the Disney Fairies franchise, it is time to rejoice as the House of Mouse aims to make that franchise fly to new heights this year. Disney has introduced a breakthrough concept when it comes to the next-generation Internet-connectivity with Disney Fairies toys that boast Clickables technology. This is an exclusive toy courtesy of Disney and Techno Source teaming up, where Clickables technology allow girls to extend their virtual playtime in Disney Fairies Pixie Hollow. For parents who have no idea what the Disney Fairies Pixie Hollow is all about, it is actually Disney’s latest online virtual world where you will be able to keep in touch with offline friends in the real world. Playtime is all about magic, and it seems that this latest line of toys isn’t short of its charms and wiles.

Disney Toy Get Clickables Technology

DISNEY TOY GET CLICKABLES TECHNOLOGY

If you’re a big fan of the Disney Fairies franchise, it is time to rejoice as the House of Mouse aims to make that franchise fly to new heights this year. Disney has introduced a breakthrough concept when it comes to the next-generation Internet-connectivity with Disney Fairies toys that boast Clickables technology. This is an exclusive toy courtesy of Disney and Techno Source teaming up, where Clickables technology allow girls to extend their virtual playtime in Disney Fairies Pixie Hollow. For parents who have no idea what the Disney Fairies Pixie Hollow is all about, it is actually Disney’s latest online virtual world where you will be able to keep in touch with offline friends in the real world. Playtime is all about magic, and it seems that this latest line of toys isn’t short of its charms and wiles.

Wifi And Blue Tooth

WIFI AND BLUETOOTH PCI CARD

So you’re thinking of giving that old workhorse at home a new lease of life? Why not throw in this WIFI PCI CARD.All in one PCI card for getting not making your computer Wifi ready, but also turning your computer into a Bluetooth enabled workstation. Simple to install, and with easy to use software included, this powerful dual use PCI card features the very best and latest in both Bluetooth and Wifi technology. This is the computer accessory you need to make your computer the best it can be.
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Digital Pocket Album

DIGITAL POCKET ALBUM

Considering that Mother’s Day is about a month away, it might be a good idea to at least think about what to give that woman who bore you for nine months. You could give her the latest gadget, but if you’re mother is anything like mine, she is not too familiar with the latest in technology.
Yet I can’t think of a better gift to give your mother than the Digital Foci Pocket Album. What better gift for any mother but pictures of her children, or perhaps grandchildren?
The Digital Foci Pocket Album allows you to download up to 74 photos on 8MB of internal memory. It works by using a user-friendly Photo Viewer Software that can convert JPEG to BMP images from the computer to the Pocket Album.
In other words, you can go ahead and set up the Pocket Album with all the pictures that mom would want on her keychain, or you can let her do it. If it were me, I would put the pictures on Pocket Album, and then show her how to change them if she wanted to. You should also show her how to charge it, considering it only has 9 hours of battery life.