| Summary: | The purpose with this work that is the basis for this thesis was to help Nattavaara Economical association to develop a program for handling invoices, customer information, and storage. The program and this thesis have been done in cooperation with the economical association in Nattavaara. Some of the demands on the program are that it shall handle customer information, storage status, invoices and diesel consumption. The program must be able to printout invoices, reminders, delivery notes, a customer list and a storage list. All information will be stored in a database. The program was implemented in the program language Java and with a MySQL database; since they both are platform independent and we have previous experience using them. The program is window based and built around the usage of tabbed windows; there every tab represents an own functionality, this to create a foreseeable and easy navigated program. User friendliness is something that has been taken into consideration in the process of developing this program, among other things through grouping of adjacent information and the placement of buttons. One of the conclusions with this work is that Java can with advantage be used to create graphical interfaces with connections to databases. Further development of the program could be for example to improve the quality of the printouts and the handling of the database initiation.
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