Condition of the Mobile User

Transcription

1 Condition of the Mobile User Alexander Nelson August 25, 2017 University of Arkansas - Department of Computer Science and Computer Engineering

2 Reminders

3 Course Mechanics Course Webpage: you.uark.edu/ahnelson/cmpe-4623-mobile-programming/ Syllabus is on the website. Course Communication: This slack channel is to be the primary mode of communication

4 Homework - Due Friday by Midnight Sign up on the Slack website Use your UARK username as the slack username. Download Android Studio Video will be on the website by end of day today. Send screenshot of android studio in direct message to my slack user (ahnelson) 5% of the first project grade.

5 Readings Meyers User Interfaces Satyanarayanan Fundamental Challenges of Mobile Computing Read these by Monday, and be prepared to discuss

6 Condition of the Mobile User

7 Dimensions of Mobile Computing Reza B Far - Mobile Computing Principles (2005)

8 How does the mobile user differ? Moving between locations known & unknown Not focused on computing task Requires immediacy and responsiveness Changes tasks frequently and abruptly Require access at anytime or anywhere Text from Reza B Far - Mobile Computing Principles (2005)

9 1) Moving between locations User s location at any given time is variable! Related to location and QOS computing dimensions Users expect applications to know their location with reasonable accuracy Luckily this is mostly done for you...

10 1) Moving between locations User s location at any given time is variable! Related to location and QOS computing dimensions Users expect applications to know their location with reasonable accuracy Luckily this is mostly done for you...

11 2) Not focused on task High likelihood that user is not singularly focused Multitasking Primary focus is elsewhere Necessitates active transactions! Makes multiple interaction patterns more useful e.g. Using notes app while talking on the phone

12 2) Not focused on task High likelihood that user is not singularly focused Multitasking Primary focus is elsewhere Necessitates active transactions! Makes multiple interaction patterns more useful e.g. Using notes app while talking on the phone

13 3) Immediacy and responsiveness Users expect (and often need) to perform a task quickly Performance cannot be an afterthought! A short delay could lose you a user e.g. GPS Navigation must notice when you have gone off-route and adapt Tolerance is dependent on application and expectation

14 3) Immediacy and responsiveness Three time limits 1 : < 0.1s - User feels system acts instantaneously < 1s - Maintain user s flow of thought < 10s - Maintain user s attention Plan for these limits! Use loading screens/timers when necessary 1 Jacob Nielsen

15 3) Immediacy and responsiveness Interactive software must 2 : Acknowledge user actions instantly Let users know when system is busy Free users to do other things while busy Animate movement smoothly and clearly Allow users to abort lengthy operations Allow users to judge operation time Let users set their own work pace 2 Jeff Johnson - GUI Bloopers

16 4) Changes tasks frequently/abruptly Mobile behavior and active transactions can result in sudden computing needs Applications should function despite this behavior

17 4) Changes tasks frequently/abruptly Android Lifecycle Set of callbacks which should be implemented

18 5) Require access anytime and anywhere Everywhere Everyplace Anyplace Pervasive Ubiquitous User expects to be able to retrieve data and compute at any time Start a transaction on one device complete on another To: John Smith To: John Smith Cc/Bcc Subject: Test John, Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum Cc/Bcc Subject: Test John, Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. Sed ut perspiciatis unde omnis iste natus error sit voluptatem accusantium doloremque laudantium, totam rem aperiam, eaque ipsa quae ab illo inventore veritatis et quasi architecto beatae vitae dicta sunt explicabo. Nemo enim ipsam voluptatem quia voluptas sit aspernatur aut odit aut fugit, sed quia consequuntur magni.

19 5) Require access anytime and anywhere Everywhere Everyplace Anyplace Pervasive Ubiquitous User expects to be able to retrieve data and compute at any time Start a transaction on one device complete on another To: John Smith To: John Smith Cc/Bcc Subject: Test John, Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum Cc/Bcc Subject: Test John, Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. Sed ut perspiciatis unde omnis iste natus error sit voluptatem accusantium doloremque laudantium, totam rem aperiam, eaque ipsa quae ab illo inventore veritatis et quasi architecto beatae vitae dicta sunt explicabo. Nemo enim ipsam voluptatem quia voluptas sit aspernatur aut odit aut fugit, sed quia consequuntur magni.

20 How does the mobile user differ? Moving between locations known & unknown Not focused on computing task Requires immediacy and responsiveness Changes tasks frequently and abruptly Require access at anytime or anywhere Text from Reza B Far - Mobile Computing Principles (2005)

21 Let s discuss the final project

22 Project Specifications The final project is worth 25% of your grade I expect at least 25% of your effort in the course! 43 classes 4 hours = 172 hours 172 hours 4 = 43 hours

23 Project Specifications In the syllabus you will see this line: The projects will have bi-weekly checkpoint reports The first will be due September 15th By that time you will need to identify: The group (or individual) The project The form it will take (e.g. phone, tablet, watch, glasses) In all, there will be 6 reports. I will post a template on the website.

24 Project Ideas - Passenger Screening Assist Create visualization for 3D scans 3 3

25 Project Ideas - Facilitate Field Data Collection Create application to facilitate field data collection 4 4

26 Project Ideas - Aggregate Health Statistics Aggregate sources of public health Health Data Challenge 5 5

27 Project Ideas - Indoor Localization Challenge Create visualization to show indoor location 6 6

28 Project Ideas - Data Driven Farming Repository of data driven farming techniques 7 7

29 Project Ideas - IoT Security Challenge Find all IoT devices in the home Update firmware and find security issues 8 8

30 Project Ideas - Razorback Transit Performance Reverse engineer the Razorback Transit GPS API Track on-time performance on a stop-by-stop basis 9 9

31 Project Ideas - Assistive Mobility Make application to facilitate Razorback Paratransit services

32 Project Ideas - Virtual Memorials Use mobile and VR technologies to facilitate new ways to experience memorials Prarie Grove Battlefield?

33 Project Ideas - Stroke Rehabilitation Training Gamify stroke rehabilitation for both limbs

34 Project Ideas - Facial Recognition Recommender Use facial recognition to learn if people are enjoying reading articles/books Recommend new based on that determination

35 Project Ideas - Virtual Chipotle Allow drag-and-drop assembly of burritos (or sandwiches, or salads) Order is uploaded to Chipotle (or subway) and prepared

36 Project Ideas - Photo Jigsaw Enable users to create virtual jigsaw puzzles from their photos Allow game assembly with varied sizes (better for tablet)

37 Project Ideas - U of A(ugmented) Use the phone as an AR application for virtual tours Either target for new students or homecoming

38 Project Ideas - Multiplayer Simon Use two phones to compete in a memory game Use swipe gestures as inputs to the game

39 Project Ideas - Dual N-Back Brain training application Use auditory and visual feedbacks and ask user for inputs