"INTERFACE USABILITY 1Table of Contents1. Introduction ......................................................................................................................................... 22. First design concept ............................................................................................................................ 23. Second design concept ........................................................................................................................ 54. Reason behind the design concept ..................................................................................................... 85. The Best Solution ................................................................................................................................ 96. Conclusion ........................................................................................................................................... 91 1. IntroductionSolar Management system is one of the user interface which is mainly designed for themiddle-income home owners. This marketing strategy is the cost benefit and it has severalbenefits for the environment. This system also monitors the solar power system in the roof top,along with its charging and storage state. The existing user interface is very complex and itconfuses the users. Hence, the new interface will be designed for the effective use of the system.Pencil tool will be used to design the system. A detailed design will be given for the solarmanagement system. Based on the given requirement two alternative designs will be given forthe system.2. First design concept The user can register their details. After login their account the home page of the SolarHome Management System will be displayed. In Home page, there are three panels presentedsuch as Solar Panel, Battery Panel and Grid Panel. If the user needs to ask any queries regardingthe solar management, they can ask to help desk quickly through various options like email,Facebook and twitter accounts.2The user can view the details of power energy consumption, produced and stored in thesolar panel either on daily basis or monthly basis. The power is calculated as KW per Hour. Ifthe user needs to reset the count, there will be an option to delete the previous statistics and resetthe storage settings. When clicking the “Solar Panel” button, other unnecessary details will behidden and the user required information only displayed.3In the “Battery Panel”, the information about total amount of energy consumed from thesolar panel and how much amount of energy stored will be displayed. As it is provided theBattery statistics with progress bar, it is very easy to understand the remaining charge of thebattery. So the user can be alerted to activate the solar panel and produce the energy.When clicking the “Grid Panel” button, the user can view the details of “Grid Costs”. Itdisplays the total running cost, peak time, cost of peak time, off-peak time and cost of peak timewill be displayed. The total amount of energy consumed by the grid will be displayed. Based onthe energy consumption of grid, the costs can be calculated.In this interface all contents are provided in one page. As it does not have any hyperlinks,it is easy to access the three panels. While the user accessing one panel, other panels and sectionswill be invisible. So that the required information only visible and easy to focus by the user.Because redirecting to one page to another page will make the process as complex one. So thehyperlinks are avoided in the first interface design concept.4 3. Second design conceptThe above screenshot displays second design of the solar home management system. Thesolar home management contains the three panels. There is solar, battery and grid.it has the dailyand monthly consumption in solar system. This design provides many drawbacks anddisadvantages. The main demerits of that design is contains the more number of links betweenone page to other page. The home page does not contain any privacy or security setting. Thisdesign should not include the contact information about the solar management system. So, theuser can get the confusion of knowing the details about the solar management system.5 "