Essentials: Essential consists of a bunch of small applications to be used in daily life scenarios like Calculator, Currency Converter, Unit Converter, Handwriting Calculator and Discount Calculator. Which is being used by almost all user segment of mobile phone.
My Contribution: Calculator is one the most primitive electronic device, hence was a challenging application redesign it with differentiators. Nokia N9 is Flagship product from Nokia and was positioned very strongly in Nokia device Portfolio hence It was clear Calculator should be simple yet appealing with differentiators.
I was responsible for creating high quality designs for Calculator and other Essentials in the same group and getting them approved with several stake holders from Core Design Team, Development Team and Business owners. Also I wrote detailed UI specifications and participated in usability studies. Essentials went through many Iterative Designs before arriving to final one. In contextual enquiry it is found that existing memory functions are not usable and hard to learn, I Designed and proposed new features in Calculator like Calculation History and Save Calculation to replace the complexity of existing memory function like M+, M-, MR and MC.
Few Design Iterations below (Newer to Older sequence)
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© 2019 Abhishek Sahu