Sunday, 13 April 2014

M1 - Policies and Procedures to control the maintenance of computer systems


M1 - explain the need for policies and procedures that control the maintenance of computer systems


Having policies and procedures for the maintenance of computer systems is extremely important in this day in age.
The biggest policy is Health and Safety. Health and safety is everywhere, in any kind of organisation or workplace. Making sure that both your employees and your customers are safe at all times is very important if you want your company to thrive. These days, any kind of accident in the workplace generally results in someone going to court and a rather large fine being handed out. So all companies have this that everyone must abide by.
The company must have all the correct and necessary equipment for the employees. This is extremely needed when it comes to the maintenance of computer systems, because you will be dealing with electricity and tools. Having equipment like anti-static wrist bands and mats are very important. Also, making sure that the employees have had the correct training so that not only do the employees not get hurt, but when the customer/end-user uses the computer, they will not get hurt/electrocuted because hardware was not plugged in properly or was faulty to start with. Making sure that all the electronic equipment has been PAT tested is also very important. PAT testing is the law so it must be done before anyone uses it.

Security and Confidentiality is also very important. Making sure that all your data is safe and secure from virus is easily dismissed by many novice users. Having some kind of anti-virus software and a firewall can reduce your chances of being attacked by both malware and hackers. Many hackers will try to access your system to steal information from you or simply delete your info, so having a back-up of all your data is also very important. Software like Sophos, AVG, Norton, etc. can help prevent malware from gaining access to your system. User data confidentiality should not be ignored because when in a company, if you are sharing details about a project you are doing or uploading statistics to the web, etc, you need to be careful because the company may not tolerate this. Being caught doing this can result in you losing your job or even being taken to court by you company.

Prioritisation is another very big procedure when it comes to the maintenance of computer systems because making sure that the correct jobs are done in order is very important. If a companies server goes down for instance and all the employees cannot work, well this would need to be number one priority on the list compared to say, someone cannot access the internet. So getting this right can mean the difference between your company making money and losing money. 

Monday, 7 April 2014

P3 - describe a planning technique that can be used to schedule maintenance activities



There are many different types of techniques that will help you to plan out IT maintenance tasks. One of the more common methods to plan out your tasks is the Gantt chart. The Gantt chart is made up of horizontal bars that tell the user helpful information about the task or project in hand. The Gantt chart has the time on the horizontal axis and the tasks to be done are on the vertical axis.



Things that can be included in the Gantt chart are :



-Information on how long the project will take and the current progress of the project.
-The order in which the tasks can be carried out.
-Prioritisation of tasks.
-What resources will be needed in order to complete the task.



The main factor to keep in mind is the prioratisation of the tasks. The reason for this is that if the tasks are put into a random order, you can lose track of what you have done, which can cause serious consequences for the company or the task they are doing.

An example of a Gantt chart is:


Thursday, 13 March 2014

P1 & P2 - Maintaining Computer Systems

Jacques Harris - P1 and P2


Issues: 

When using IT in an organisation, there are certain procedures and laws that must be obliged, and guidelines that must be followed. Taking these laws seriously is a must, otherwise legal action will be taken on you and the company resulting in you losing your job or paying a large fine.

Some of the more common laws that must be taken into account are the Copyright Law, the Computer Misuse Act, and the Data protection Act. If any of these laws are breached, you can face a fine and/or jail time.

Things like, PC upgrades, updating software and hardware, just general PC maintenance, are all included in these laws. In a company, all electrical appliances must be PAT (Personal Appliance Test), this is just a test that is done to check that everything is in check and there are no faults with the appliance. It is the law to have everything PAT tested, under the Electricity at Work regulation.

Procurement: 

This refers to how a company buys things, like software for the computers, hardware, office chairs, pens, etc. The company can acquire everything by either buying it themselves in bulk, which will reduce the price a little, or they can simply borrow everything from other companies.
Now most companies use a mixture of both depending on the situation. For example, if they are going to need a bunch of anti-virus licences for a thousand computers, then buying this in bulk will save them a heap of cash, opposed to buying them individually. If they wanted to lease something, rather than buy it, then although they won't be spending as much money, they have the risk of it getting damaged whilst in their care.

Sustainability and Environmental Issues:

Many electronic appliances just get thrown out when they are broken, which can be harmful to the environment. Any organisation will need a plan for what happens when the systems its components are no longer able for service. Recycling parts is a very good way to make sure you are doing your part for the environment, and this means that new things can be made from your unwanted or broken computers and its parts. But you can't simply just put the parts in bin, there are many things that the company will have to sort out, for example, you will need to sort out how it will be transported, whether your company already has its own transport of if they will have to get an external company to do it for them. They will also have to find the correct recycling plant for it to go and whether they will accept these parts. Another form of recycling you can do is selling working, but old, parts to other companies. This means that rather than just throwing away usable parts, you can get a little cash back from them. 

Reporting and Documentation:

It is important that any faults are reported when they arise. Having a way to document any faults that occur can be a real help to the system maintainers later on. By having a fault log for instance, if the fault occurs again, you can quickly reference back to the log to see how the problem was fixed. This will reduce the time it takes for the fault to be fixed dramatically compared to if you were to try and fix it without help. Over enough time, you would have acquired the solutions to a lot of faults, meaning that they will be solved almost instantaneously whenever they arise. 

Problem Escalation Procedures:

Escalation procedures is where a problem of any kind, gets made worse by the technicians. If a problem occurs that the technicians try to fix, but they don't know entirely or at all what to do to solve the problem, they can make the problem worse without them even knowing about it, when this happens, it's best to either stop what you're doing immediately and get the more experienced technicians to solve it, or to get an external company to try and fix the problem. 

Employer to employee responsibilities: 

Health and safety is a massive policy that everyone must abide by. When dealing with electronics, such as computers, the employer should make sure that all employees are working risk free and in a safe environment, otherwise if an accident occurs, the company will be looking at a fine or worse.

Having the correct equipment for the job is essential as it will reduce the chances of an accident dramatically. When working with computers and other electronic software, you are need items such as, anti-static wrist bands, mats, and the correct tools for the job, at a minimum to just work. The employer should always have all the needed equipment by the employees and all tools and equipment should be replaced when the time they become unsafe to work with. 

When fixing electronic equipment for customers, it is especially important that the job is done to a high standard, otherwise there could be serious problems. If the customer gets the electronic device back and is then later electrocuted, the company could be looking at going to court.

Legislation e.g. health and safety, personal appliance testing







Risks


Electrocution: Electrocution is always a possibility when working with computers. The only real way you can get electrocuted is by messing with components whilst there is still power being given to the computer. The best way to prevent this it to turn off the power to the computer before you work on the components. If you need the power on for whatever reason, make sure you are wearing gloves, and/or anti-static bands. This will stop the current from travelling around your body.

Surges: Just like electrocution, surges occur when the components are being over used and there is too much power going into the PC. You can prevent this by changing the components in your PC to meet the requirements of the motherboard.

Hardware Frying: Hardware frying occurs when the hardware components are being overused or there is not enough air intake to cool it down. To prevent this you will need to have your PC in an open space for the air to get to it, and/or buy better fans for your PC to cool it down when in use.

Tools: Hurting yourself with tools is the most likely to happen out of all the things listed. This is because humans are much clumsier than machines. Now the only real way to prevent yourself from getting hurt by tools is to wear safety gear, for example, safety gloves, safety shoes, or even a safety hat.

Water cooler: The water-cooling system is a great way to cool your PC down, but when it breaks, that can cause a major problem. The water from the pipes can leak over your components causing them to surge. This can result in fried components and if not, they will most certainly be damaged by the water anyway. There is no real way of preventing this, but i guess you could inset your own draining system for it, and when it breaks, it could drain out somewhere, but this will take up hardware space in your case, which could prevent hardware from working somehow.

Fire: Fires are a possibility when working with electronic equipment so it is essential that you know what actions to take to prevent it. The two ways a fire can occur, is from the components overheating, and electrical problems with either the hardware or the plug. To prevent a fire you should have a fire extinguisher nearby at all time, this could be the difference between life and death in some situations.

Fans: To prevent being hurt by the PC fan when changing parts in or around the motherboard, you can either turn off the power, put on gloves, and/or buy a fan with a cover over it. Being hurt by the fan is not really possible as the fan is not travelling fast enough, nor sharp enough to penetrate the skin.


Electrostatic Discharge: This is where to electrically charged object come in contact with each other causing sparks or components to short circuit. This can be dangerous as it can cause a fire, or electrocute the user if you are near the components. The ways to prevent this is by grounding yourself, wear anti-static clothing like rubber gloves, ESD wrist-straps, and many more.

ESD can also cause your hardware to fry, which can be costly for the user if they want to replace. The best way to stop this from happening is if you are going to move hardware in your PC, make sure there is no current flowing through the motherboard when you take the insides of your PC apart.


Precautions:

ESD wrist-strap: the wrist strap is very useful if you don't want to get an eclectic shock. By wearing the strap it will stop any static charge from travelling through your body.
The ESD strap safely channels the static electricity to proper ground so that it causes no harm to you of the components of your PC. Wearing a strap is simple, you just put it around your wrist. Most companies will give these out to their employees as part of the job to make sure that everyone is that little bit safer.

ESD mat: ESD mat helps you stay grounded so that you don’t get electrocuted when handling electronic equipment. It does pretty much the same job as the wrist-strap, as it will reduce or stop any static charge from your body. To use this, you just need to make sure you are on the mat and it will do its job. Quite a lot of companies will have these for their employees to make sure that they are safe when working will electricity.

Fires and firefighting equipment are essential to have when working with electricity as you may well know, many fires are caused by faulty electronic products. Having things like a fire extinguisher, fire exits, fire hoses, are all necessary in the workplace. Not having these basic things is against the law and your company can be closed down if found out. You will generally have a fire safety zone where if the alarm rings, everyone will evacuate and head down to the safety zone in case of a fire.

First-aid training is very important in any kind of company as the difference between knowing what to do and what not to do can be the difference between saving a life. There should be at least a couple of people who know what to do in case someone is seeking help to make sure they don't die between the time it takes to ring the ambulance and them getting the hospital. Just knowing the basics can be a huge help to someone in need.