CAD or computer-aided design is the use of computer technology for designing real or virtual objects. It is used to design curves and figures in 2D or two-dimensional space, or curves, solids and surfaces in 3D or three-dimensional objects. It’s an important industrial art used in many applications such as automotive, shipbuilding, aerospace industries, industrial and architectural design, prosthetics, etc.

It is popularly used in computer animation for special effects in films, technical manuals and advertising. It is often used in making tools and machinery. Many architects, engineers, designers and developers use CAD in the drafting and design of all types of buildings, from small residential ones to large commercial and industrial structures.

CAD models are basically electronic drawings or designs made using CAD technology. Using CAD allows you to electronically adjust or enhance your designs. Before CAD models were possible designers and engineers used to rely on drafters using traditional methods for their designs. This took more time and money. But since the conception of this technology, many engineers started doing their own drafting work, eliminating the need for drafters and cutting down costs in companies. It’s not only faster and more efficient, it’s more cost-effective too.

With the use of CAD, you can produce more realistic models, you can view it in any direction or position and even calculate physical properties of your drawing. They are frequently used to visualize various aspects of physical objects with computer graphics. CAD modeling is fast becoming an indispensable part of modern manufacturing, construction and design.

Using 3D CAD models are far more cost-effective in developing prototypes and conceptual drawings. It allows users to locate the most economical components easily by translating the finest details. It allows you to manipulate and test ideas before manufacturing products. It also reduces the time and cost used for researching, redesigning and building different versions.

Products are designed and manufactured with greater accuracy and they reach the market sooner than before. Clients have become more confident in investing their resources after viewing the accuracy and precision of CAD models.

The CAD models’ popularity is due mainly to its competitiveness, efficiency and low cost. Most of the latest elaborate architectural masterpieces made use of CAD technology to reflect the genius of architects and designers. True representations of such concepts were produced for evaluation and feasibility assessment. All the complexities and other such building innovations were reproduced without missing a single detail. These detailed dimensional drawings were produced by using CAD.

CAD modeling is a state-of-the-art technology that is precise, reliable and cost-effective. It eliminates any redundancy in production. Failing to adopt this technology is a competitive disadvantage.

Hackers aren’t the only ones committing online crimes these days. Computer forensics analysts are being called on in large numbers to investigate company employees and crime in the work place.

Many corporations are hiring teams of online computer forensics experts to track employees and their daily habits. It can be minor cases such as internet or email abuse causing wasted hours on the clock, or it can be a more critical crime such as employees selling intellectual property or using it to operate a competing business on the side.

Another area where computer forensics is extremely useful is when investigating criminal cases. There are many people out there participating in illegal online activities, such as child pornography sites and trading of information. It’s good that our system puts a high level of importance on bringing these people to justice and shutting down these sites and digital forensics are what makes it possible to find these people and prosecute them to the fullest extent of the law. These practices are not tolerated and with the proper input from an online computer forensics expert, people participating in these unlawful practices can easily be found guilty and put behind bars.

It’s best to gain access to a computer before anyone has a chance to destroy evidence. But even if an individual knows they might be investigated it is very possible to retrieve any information they try to delete. It’s also very easy to monitor their actions through computer or phone spying software.

Cell phones are very common these days and with this technology comes a new area where computer forensics can be utilized. A lot of illegal activity happens over cell phones. Text messaging, picture messaging and basic phone calls can contain information that is highly relevant if trying to prosecute a person of a cyber crime. Phones these days are basically small computers that can send and receive the same data as most computers. It’s important for computer forensics experts to keep up with this changing technology and be able to handle any scenario thrown their way.

Cell phone spyware is new software that allows anyone to tap into a phone’s calls, messaging and internet usage. With a simple application put onto a phone you can track everything that phone does. This can be good and bad. It’s not very settling to know that anyone can track everything you do on your phone, but from a computer forensics standpoint, this is a valuable tool that could possibly bring severe criminals to justice.

Online computer forensics is all about keeping up with the criminals and their practices. As they learn new ways to hack into systems or run email scams, it’s important that digital forensics experts keep up and are able to use their knowledge to solve crimes and keep our internet safe.

To start involving yourself in this fascinating field, you will likely need a computer forensics degree or any degree related to computer science, criminal justice or engineering. Besides education, it is also a must for you to attend digital forensics training from accredited training institutes. You can either obtain computer forensics training program online or offline. To be a professional digital forensics, you need to make sure that you equip yourself with a broad range of knowledge which is related to computer storage devices, operating systems, software applications and programming languages.

While you are pursuing the program, it is suggested that you should consider an internship in any of the computer forensics company. Through internship, you are able to obtain real world knowledge in the real working environment. Besides, being an intern helps to open the door for you to enhance the technical and analytical skills which are typically a must for all computer forensics careers. At the same time, your resume will definitely look great when you have job experience in this particular line.

After you have obtained the formal education and training, then you are ready to decide which agency you would like to work in. There are many job opportunities in law enforcement, police and military, intelligence agencies, public listed corporations and even Federal Bureau of Investigation. Secure yourself a job and start investigating!

A surprising statistics has shown that around 71% of these particular illegal activities come from “inside the organization”. This shows that the employees of the companies are misusing the computers to steal valuable data. They also help outsiders to get access to private and confidential information of their companies for their own benefits. In normal circumstances, these cyber criminals are undetected and they are able to get away easily because many companies still haven’t got the expertise to track these irresponsible employees. Looking at these situations, it is essential to get the involvement of the computer forensics investigators or experts to trace the criminal act in the organizations.

Having computer forensics investigators and experts in the companies is important in handling cyber crime cases because all the digital evidences in emails, internet banking transactions, documents or files generated from operating system and databases need to be safeguarded and preserved carefully. All these evidences are volatile and can be destroyed easily. Only through computer forensics, all the hidden and deleted documents can be identified, collected, analyzed and presented to the court for legal proceeding.

Computer forensics allows the uncovered facts and illegal activities to be revealed. This “legal” hacking is indeed important in ensuring the computer system security throughout the world is well protected.

Incidentally, the science behind computer forensics really isn’t much different from the science between crime scene forensics. In both instances, the forensics team or expert is looking for a trail of evidence. In either case, the investigator looks at what has happened, determines how it happened, and from that, deducts who might be responsible.

The major difference between the two is that, while an investigator on the scene of a robbery or a violent crime is looking for physical evidence, the computer forensics investigator is looking for digital evidence.

Interestingly, where physical evidence can often be misleading, confusing, ambiguous, and difficult to put together without the help of witness statements, digital evidence tends to present itself in a much more direct manner.

A computer keeps logs of pretty much everything that has been done with it. For example, besides your browser history, there’s also your temporary internet folder, where information from the web is stored on your computer. So, say an employee is watching YouTube all day when they’re supposed to be working. Even if they’re smart enough to clear the browser history, the temporary internet files may still hold the evidence that will earn them a warning.

That’s only a very simple example, of course. Computer forensics addresses everything from computer crime to employee misconduct, to such mundane tasks as figuring out why your virus scanner isn’t working.

The point is that everything you do on a computer leaves a mark. Deleting a file from your hard drive is not same thing as deleting all the evidence that it was ever there. Just as every room in your house holds some DNA evidence, be it a hair, saliva, or a toenail clipping, no matter how well you vacuum and shampoo your carpets, there will be some evidence that this is your home. The same goes with computers. You can’t do anything on a computer without a computer expert being able to figure out exactly what you’ve been up to.

One issue that many find confusing with regards to computer forensics … how legal is it, really?

This depends on the context. Here’s all you need to know if you’re considering hiring a computer forensics team, but aren’t sure if you can:

If you suspect an employee of breaking company policy or even breaking the law with a computer that belongs to the company, you do have the right to take a look at the computer they’ve been working any time you like.

It gets a little trickier when an employee is working on their own computer. This isn’t a dead end, but it may be a little trickier. Luckily, you don’t always have to look at their computer to find evidence of what they’ve done on their computer. In any case, go ahead and call your forensics people, and they should be able to advise you on how far you can go to gather the evidence you need in order to take action.

Really, computer forensics is simply the art of finding a trail of evidence on computers, simple as that. You never know when you’ll need such services, so it’s a good idea to keep them in mind in case you ever do.