Supermarket database-computer coursework Essay Example for Free

Supermarket database-computer coursework try outIntroduction There argon many supermarkets around us, but there do you know how it works. In this coursework. , we exit anyalsis the problem of the old supermarket dust and how to solve this problem. Besides, in this coursework, it will introduce a juvenile supermarket system, introduce its advantage, how to set up, how to use it and what is its advantages.Old supermarket system Disadvantage piles of papers are utilize to slide by the records it is hard to back up the records, if you really do so, the cost of the ink and the papers raft make you bankrupt the payments are calculated by men, if your mathematics is poor, you will bankrupt again you exigency to spend nights after nights to turn the pages by your lapses in order to search the data of the customers and supplier snail mail is used, which means time and m adepty is wasted your customers apprisenot immediately get the close to update news of your product, simply the million-dollar contract will fly to other companies the piles of paper wont move you when your product is expired, you need to search through the papers it is not easy to comunicate to your branch stores. Many workers are indispensable to check the store Solution of the problem To solve the problem in the old supermarket system,setup up a database system that would control local store inventory, and cover the ordering of stock from the customers. Advantages of the new system Digital record is used. Millions of information are stored in a 6-inch hard-dish.The records back end be backed up inside a DVD or a hard dish drive. the payments are calculated by computer, which decreases the human illusion In order to search the data of the customers and supplier, you simply need to type the name, or tel. number. email is used, your customers can get the most update news of your product, at once the computer will remind you when your product is expired, so you can make preparations yo u can communicate the computer form one branch store to another.Information can be transferred immediately computer can do most of the jobs. Less workers are employed Old system Computer system Space needed to keep the records more Much less Back up Very difficult Very easy error High possibility Low possibility Search data Very complicated Very well-off mail S unkept and expensive Quick and free Check expired stock By hand automatically Communication Slow and in satisfied Quick and easy Number of employees more less prerequisite of the system.It is consider that the supermarket has original system which has only one computer with the pursuance equirement. Working system Windows 2000, bar edition Processor Pentium III 733Mhz, labour 256MB recommended fight off space 20GB Video 32MB shared ram In order to reach the requirement of the new system, the computers need to replace new ones and connected as the following instructions. Requirement of the server. Working system Windows server 2003, standard edition Processor Pentium 4 3. 0Ghz, 550+ MHz recommended RAM 1024MB/1G recommended Drive space 250GB Video 128MB shared ram or better This computer is highly security.It needed the voice check and the password of the three highest manager to coarse the report of the profit and also to open the economy condition of the supermarket. Besides, the server is connected to a internet server with domain name. This is because this can convenient the customers to shopping or order products from the internet. Requirement of the other computers The other four computres is used to save data. They should receive the following requirement. Working system Windows XP, Professional Processor Pentium 4 3. 0Ghz, 550+ MHz recommended RAM 512 MB recommended Drive space 80 GB Video 128MB shared ram or better.Software of the programme The supermarket can use Microsoft Access or Visual raw material The advantages of using MS Access are It is a relational database, which makes the data management easier. It integrates easily with other Microsoft packages such as Word and Excel. It is inexpensive. It is a malleable product that cab be used for all physiques of databases. It can be used to build bulky database applications. All the information is held in one place and the information only needs to be updated once. It can retrieve and update information quickly and easily. Reports, standard letters can be easily produced. funding and archiving is easy. The disadvantages of using MS Access are It lacks in high volume capacity. It is limited to a low transaction rate. It can bring down the entire servers if it is not used properly. The advantages of using Visual Basic are It provides a user-friendly interface. The modular structure in visual basic program helps the software engineer to develop a large program without knowing all the variables and their relationships. It is provided by an integrate development environment that helps the programmer in debugging syntax errors. The disadvantages of using Visual Basic areIt is limited in the kind of application that visual basic can code.