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Friday, 20 December 2013
Documentation
When your system is fully installed, documents have to be issued.
We have the technical documentation & user documentation. You can think of them as manuals. Detailed information about a system's design specifications, its internal working & its functionality are found in documentation.
* User Documentation: It is provided to users to help them operate the newly implemented system. It can also take the form of a tutorial.
* Technical Documentation: It is provided specifically for the systems analyst & the programmer to help...
Saturday, 30 November 2013
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Friday, 22 November 2013
ISBN Calculations (Check Digit)
During the design stage, the designer has to limit the chances of inaccurate data. Therefore, validation checks have to be established. These checks include:-
1) Range Check: Checks whether data is within acceptable boundaries.
2 ) Length Check: Checks if the data is entered with the required number of characters
3) Character Check: Checks that the data entered doesn't include invalid characters
4) Picture Check: Checks that data is entered...
Evaluation
There, the system has been fully installed and it's up & running. The users of the system are to evaluate the system. During this stage, two key questions will be asked:-
Q1) Does the finished solution meet its requirements?
Q2) Does it solve the problem?
What's the point of a solution which doesn't solve its corresponding problem? Nothin' right? So when these key questions are answered positively, then the system has succeeded....
Implentation
At this point, the system is designed, tested and is ready to be implement it. The thing is, how to do so? Knowing that there are four ways in which you can implement the system. So, which one is the best choice? Like with the methods of recording info back in the analysis stage, there is no black & white rather than it's all shades of grey.
1) Parallel Running: Both the old & the new system will work simultaneously and then...
Development & Testing
The data structures are now designed and now we can move on to the next stage. Let's start with "development". After the data structures have been designed, it's time to create them using the software or programming language recommended by the analyst.
Now that the system is created, what if things don't work out. What if the created system failed to meet it's goals. One thing for sure, it won't look good in the programmer's resumé....
Design Stage
Now that the analyst as all of the information needed recorded, it's the designer's turn. The designer will have to design the inputs & outputs of the system, database stores, process of the system, validation check and test data for the system.
However, the designer has to keep in mind several factors when designing the new system. He has to consider:-
1) The fluency and smoothness of the system, i.e. it should be easy to use, navigate through...
System Analysis
So before anything happens to your system, it has to be analysed. This is the first stage of the SLC, analysis stage. To be clear & simple, system analysis means examining the existing system in detail.
There are four main & distinct ways to collect information:-
1. Examining of Paper Documents
2. Interview
3. Questionnaires
4. Observation
The pros & cons of each can be seen from this table:-
Now,
which is...
Monday, 28 October 2013
Using Spreadsheets
Okay, so now you have a list of data recorded and saved as a CSV file and you want it as a spreadsheet. First of all, you've got to know a bit (or a lot) more about them before doing anything. So first things first.
1) What is Spreadsheets Modelling?
Spreadsheet Modelling is a computer program that allows you to create, edit and maintain full data. Note that the output depends on the input. Changing the input value will most certainly affect the output.
2) List three uses of Spreadsheets.
So you're wondering what those spreadsheets can do? Well,...
Saturday, 19 October 2013
Friday, 18 October 2013
System Design (Home-Work Question)
When desigining a layout, the analyst will be influenced by the views of the users and their requirements. He'll need to consider who will see them. There will also need to be consultation with the owner(s) of the firm.
For screen forms, the analyst has to consider the attractiveness of the screen layout and its simplicity. The screen form should not be complicated for the users and it is heavily advised to include on-screen instructions on how to navigate from screen to screen.
The main aspects of the way output is designed is its output and...
Tuesday, 21 May 2013
Using ICT in Project Management
Use of ICT in Project Management
_______________________________________
Why is it needed?
Time is the most important element and the one in shortest supply. For any project, it is essential that a business has to plan for it. Projects include: construction of a new building, designing an aircraft, starting up a business, etc... Would you imagine how carrying out the process would be if they were not planned?
How to manage a project?
There're...
Wednesday, 27 March 2013
Stock Control
Stock Control
What is Stock Control?
Stock Control is the system which monitors the items in stock. Should the store run low on items, re-ordering is required.
Note that too much stock is not good for the store; nor too little is. This is due to several facts including:-
* Too much stock costs more money. Keeping too much stock could lead to 'stock overload'
* Storing a lot of perishable items such as food is not a good idea...
Tuesday, 5 March 2013
Impact of ICT on Working Practices
Impact of ICT on Working Practices
ICT has changed the world enormously in many different ways. People used to send written letters and it would take months to reach to the recieving party but today e-mails are used to deliver instant messages. From the social aspect, ICT has changed the way people used to communicate as it has introduced social netwroking sites to the world. But lets not forget on the working practices as well.
Q)...
Teleworking
Teleworking
People have been working in their workplaces every working day and earn their salaries monthly. But there have been times when an employee cannot attend his/her workplace because of certain circumstances such as falling ill or looking after a baby. When they were incapable of coming to work, they weren't able to do their work and hence have a lot to catch up.
Today, we don't have that problem since teleworking has become common. Teleworking:...
Saturday, 23 February 2013
Air Conditioning
Air Conditioning
What is "Air Conditioning"?
Air Conditioning means controlling and altering the condition of air by means of cooling, heating, disenfecting, etc... to more favourable conditions. In the middle east it's used for cooling (obviously) while in cold places such as Europe, it's used for heating.
* AC is a short form for "Air Conditioning". Some people mix up between AC & A/C. A/C means "Alternate Current".
*...
Monday, 11 February 2013
Heating Systems
Heating Systems in UK
In the UK, various heating methods are provided with minimum cost. Gas is widely used in the UK as a heating method. A gas-fired boiler heats the water and to provide heat through radiators.
A more expensive method to heat is electricity. This involves night storage heates. These use electricity to heat special retaining-heat bricks which will keep homes warm for the day.
In some remote areas...
Thursday, 7 February 2013
Types of Robots
Types of Robots in Car Manufacturing Industry
What is a robot?
A robot is a mahcine which resembles a human being (in a way) and is capable of carrying out a complex series of action.
Coming to car industry, what are the various types of industrial robots used in car manufacturing industry.
Articulated Robots: These kind of robots are greatly flexible with rotary joints. They are used to inspect areas with assembled structures. It is also ued for assmebly, wielding, weld sealing and spray painting.
Cartesian Robots: These are used...
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