Running Head: DESIGN IMPLEMENTATION PROPOSAL 1 DESIGN IMPLEMENTATION PROPOSAL 5 DESIGN IMPLEMENTATION PROPOSAL Charles Williams CS457 Unit 1 IP Juan Echeverria 5/21/2019 Sales user interface design project Introduction The user interface is a very important aspect of any software. The user needs an interface that he/she can interact with much ease. As a result of this, the designer's major role should be the creation of a most pleasurable user interface that will allow the user to interact with the software without realizing the complications therein in the invoice. This proposal details the outline of the design implementation in relation to user interface designing. Purpose of the system The major purpose of designing user interface is to allow easy access, understanding and use of the major purpose of creating user interface are to create elements which anticipate what the user needs and allow the user to gain access, understanding, and application of the elements within the software. The elements within the interface allow interaction both visual and audio between the user and the system software (Chikurtev, Yovchev & Chikurtev, 2016). This software design is aimed to work with the sales software. A sales system allows the interaction of the customer with the system. Through the interface, the user can analyze sales, sales trends and other functions of the system with use as the interface is designed with elements and keys which allow zooming, inversion, and transformation of the images on the system using the user interface. History of system development The user interface came into the picture in the year 1981. It was discovered that graphics on the digital user’s interface in conjunction with the pointing device would allow great use of the system. This led to the creation of Xerox Star an integration of desktop computer in the year 1973 (Laaksoet al. 2016). 1.0 Macintosh operating system was the second to be designed with a complete graphical user's interface. The system had only a few of the current operating system which was window-based icons. The window allowed movement through the use of the mouse (Pathak, et al. 2018). In early 2000, there was more advancement with Apple creating Optical devices which developed to magic mouse allowing the user to have more interaction using different fingers (Jones, Clothier, & Jiang, 2018). System operation The creation of user interfaces since their creation had not been applied until early 2000. Apple picked up the pace through the creation of an optical mouse. The development and advancement of the mouse led to application and wide application of user interfaces. In the year 2001, UI was introduced with the touch-based user interface. Later, the mouse was designed to become extra-sensitive allowing the designers to scrub buttons from the computer. The use of user interfaces evolved leading to the creation of smartphones in addition to tablets (OGGIONNI, 2018). The UI .