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Designing a Persuasive Mobile Application for Sharing Food Between Students and Restaurants
KTH, School of Electrical Engineering and Computer Science (EECS).
2019 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesisAlternative title
Att med Persuasive Design skapa en mobilapplikation i syfte att dela mat mellan studenter och restauranger (Swedish)
Abstract [en]

Food waste is a monumental problem as food production accounts for nearly a third of greenhouse gas emissions globally and nearly a third of it ends up as waste. By changing people’s behaviors and attitudes, this surplus food could be eaten instead. Persuasive technologies can be an effective way of changing people’s behaviors; however, they may narrow down the view of sustainability if applied in a manner that focuses too much on individuals (among other things). In this thesis project the focus has been on how to best design a persuasive application that reduces food waste by considering the needs of both restaurants and consumers.

Two versions of an application were created based on interviews with students and restaurants, where one of the applications included features based on Persuasive Systems Design (PSD). A user study was then conducted, where the users received a number of tasks to complete and answered a questionnaire on the PSD features afterwards. The results showed that both of the applications had a similar number of errors from the users during the tasks. Besides this, all of the four features based on PSD were rated positively by users, with all features having a mean rating of 0.83 or higher on a 7-point Likert scale

Abstract [sv]

Matavfall är ett monumentalt problem då livsmedelsproduktionen står för nästan en tredjedel av utsläppen av växthusgaser globalt, samtidigt som en tredjedel av livsmedlen blir avfall. Genom att förändra människors beteenden och attityder skulle detta överskott av mat kunna ätas istället. Persuasive Systems Design (PSD) kan vara ett effektivt sätt att förändra människors beteenden, men kan också begränsa synen på hållbarhet om det tillämpas på ett sätt som fokuserar för mycket på exempelvis individer. I denna avhandling har fokus varit på hur man bäst kan designa en mobilapplikation med hjälp av PSD-principer, som minskar matavfall genom att ta hänsyn till behoven hos både restauranger och konsumenter.

Två versioner av en mobilapplikation skapades med utgångpunkt i intervjuer med studenter och restauranger, där en av applikationerna innehöll funktioner baserade på PSD-principer. En användarstudie genomfördes sedan, där användarna fick ett antal uppgifter för att genomföra. Användarna besvarade sedan ett frågeformulär om PSD-funktionerna. Resultaten visade att användarna gjorde ungefär lika många antal fel i båda applikationer under uppgifterna. Utöver detta bedömdes alla fyra funktioner baserade på PSD positivt av användarna, då alla funktioner bedömdes som 0,83 eller högre i genomsnitt på en 7-punkts Likert-skala.

Place, publisher, year, edition, pages
2019. , p. 14
Series
TRITA-EECS-EX ; 2018:792
Keywords [en]
UX; Persuasive Design; Food Waste; Sustainability
National Category
Media and Communication Technology
Identifiers
URN: urn:nbn:se:kth:diva-249707OAI: oai:DiVA.org:kth-249707DiVA, id: diva2:1305650
Educational program
Master of Science in Engineering - Media Technology
Supervisors
Examiners
Available from: 2019-04-24 Created: 2019-04-17 Last updated: 2019-04-24Bibliographically approved

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