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User expected Abrasion over time for mobile phone_ Study Report
 

User expected Abrasion over time for mobile phone_ Study Report

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a pilot study is aiming to understand the user's expectation of abrasion over time of their phones. The result will benefit the hardware quality assurance team to have better understanding about ...

a pilot study is aiming to understand the user's expectation of abrasion over time of their phones. The result will benefit the hardware quality assurance team to have better understanding about users.

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    User expected Abrasion over time for mobile phone_ Study Report User expected Abrasion over time for mobile phone_ Study Report Presentation Transcript

    • Expected Fineness over Time Study
      Stakeholder: HQA
      2009.8 by UX lab, Beijing
    • Research Questions
      How people perceive the phone’s “Fineness”? E.g. how people define “90% new”, “80% new” etc?
      What’s people’s acceptable abrasion over time for daily phone usage? Any rules between the “perceived fineness” and using time?
    • Method
      Select 12 phones with different abrasion level:
      8 normal phones (used as daily phones)
      4 abrasion test phones (made by tumbling abrasion)
      Recruit users who tend to have high expectations on phone’s abrasion over time via online questionnaire
      http://www.oqss.com/oqss25/survey/UserData/U1131/S3359.aspx
      Have users rate the phones on perceived fineness (from 1-10), and estimate how long it has been used based on own experience.
      For Detailed test protocol refers to:
      http://metadoc.sonyericsson.net/login_link.asp?doc=1/1523-LXE1100261&rev=latest
      Discuss with users about their adjustment criteria, and double check if the time estimated is what their basic expectation for phone’s abrasion over time
      Build predictive equation between perceived fineness and expected using time
    • Respondents Profile
    • Respondent’s Phone usage
      17/19 users are satisfied with their phones so far
      Protection measures:
      Sticking film (贴膜) is widely seen in the respondents (7/8 within 15 months)
      It’s a simple and cheap way to protect the screen
      Protective casing or silicon case (保护套)
      Seen in the first 3 months
      Inconvenient
    • 6 months
    • 10 months
    • About 12-15 months
    • About 12-15 months
    • About 12-15 months
    • About 12-15 months
      Low end Nokia phone
      Male usage
    • 1.5 year
      Low end Nokia phone
    • 2 years
    • 2.5 year
    • 3 years
    • Perceived Fineness
    • Description
      表面基本看不出任何磨损,划痕,基本全新,9成新以上
      9.3
    • Description
      仔细查看,能看到手机表面有轻微花痕,或者边角轻微磨损,但不明显
      8.5成新以上
      8.9
      8.6
    • Description
      手机表面比较明显的花痕或者小的划痕,键盘无明显磨损或者划痕,8-8.5成
      8.2
      8.3
      8.5
    • Description
      屏幕及手机外表(包括边角部位)划痕或者磨损明显,但整体外观依旧保持较好,7成
      7.1
      7.5
    • Description
      键盘,屏幕或者边角磨损,掉漆等较为严重,或者手机表面有明显的刻痕,磨损,掉漆等,6成
      6.5
      6.1
      6.7
    • Description
      屏幕大面积进灰,键盘或手机表面磨损明显,字迹、logo等因磨损至模糊不清
      5.1
    • Acceptable Using time (month)
    • Acceptable Fineness Over Time
    • Conclusions: Predictive Acceptable Fineness over Months (1-24)
      For Normal cases:
      Acceptable Fineness = 9.8 - 0.2 x Month
      e.g. for 6 months, the expected fineness is 8.6, which means 86% new
      For Higher expectation cases(e.g. high end phones):
      Acceptable Fineness = 10.1 - 0.2 x Month
      e.g. for 6 months, the expected fineness is 8.9, which means 89% new
      For lower expectation cases (e.g. low end phones):
      Acceptable Fineness = 9.5 - 0.24 x Month
      e.g. for 6 months, the expected fineness is 8.1, which means 81% new
      Full data analysis refers to: http://metadoc.sonyericsson.net/login_link.asp?doc=2/1597-LXE1100261&rev=latest
    • Influence Factors of Expected Fineness over Time
      Consider the following influence factors when you use the ‘predictive equation’
      Color and material
      Price
      User segment
      Usage behavior
    • Thanks
      Contact: John, Chen