| [2] | 1 | Software - REQUIREMENTS
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| 2 |
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| 3 | Syntax : Requirement - Assignee - [DONE|TODO|N(ot) A(pplicable)] -
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| 4 | Comment
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| 5 |
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| 6 | The device must be able to receive and use information from GPS (Global
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| 7 | Positioning System) and RDS (Radio Data System). The GPS is used to get
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| 8 | the location. - RICK - DONE - Comment GPS Only to RDS data
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| 9 |
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| 10 | The device must be able to receive and use information from RDS (Radio
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| 11 | Data System). RDS is used to get data about traffic jams and other
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| 12 | traffic conditions. - RICK - TODO
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| 13 |
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| 14 | The dimensions should be 12 x 12 x 6 cm (width x height x depth), with
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| 15 | no greater deviation than 1 cm in each direction. - RICK - NA
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| 16 |
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| 17 | The screen dimensions must be at least 10 x 10 cm (width x height). -
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| 18 | RICK - DONE
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| 19 |
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| 20 | The screen must be touch sensitive (touch input). - Hugo - TODO -
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| 21 | Emulate behavious by using the mouse as input only
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| 22 |
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| 23 | The weight should stay below 200 gram. - RICK - NA
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| 24 |
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| 25 | Energy usage must be kept low, less than 5 Watt. - RICK - NA
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| 26 |
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| 27 | Buttons:
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| 28 | - power on/off - RICK - DONE
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| 29 | - select between views (discussed below) - RICK - DONE - Touch
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| 30 | - select - RICK - DONE
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| 31 | - "+" (zoom in) - RICK - DONE
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| 32 | - "-" (zoom out) -RICK - DONE
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| 33 |
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| 34 | * Functional requirements
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| 35 |
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| 36 | The device has two views (screens): - RICK - DONE
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| 37 | - main screen (default view on powering up) - RICK - DONE
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| 38 | - target selecting screen - HUGO - TODO
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| 39 |
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| 40 | Main screen:
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| 41 |
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| 42 | The device must show a map on screen which shows: - RICK - TOTO
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| 43 | - the car, marked by a green triangle pointed to the current driving
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| 44 | direction (or the last driving direction when standing still),
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| 45 | centered when no target is selected, and 2 cm from a border directing
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| 46 | the opposite direction when driving to a selected target, updated each
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| 47 | 1 seconds. - RICK - DOME - Implemented a compass instead of map altering as
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| 48 | map altering is to intensive
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| 49 | - the environment (choose map based on current location), updated each 5
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| 50 | seconds. - RICK - DONE
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| 51 | - the route / way to be taken, marked by small (3 mm) dots, updated each
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| 52 | 60 seconds. - RICK - DONE - Only after simulation
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| 53 | - if possible, the target, marked by a red circle (a dot of 6 mm),
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| 54 | updated each 60 seconds. - RICK - DONE - Blue marker
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| 55 | - if existent, traffic jams or other problems, marked by a gray shade,
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| 56 | updated each 60 seconds. - RICK - NA
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| 57 | - current speed (bottom centered), updated each 1 seconds. - RICK - DONE
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| 58 | - current time (upper left), updated each 1 seconds. - RICK - DONE
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| 59 | - ETA (estimated time of arrival) (upper right), updated each 15
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| 60 | seconds. - RICK - TODO - No routing target possible yet
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| 61 | - driving directions (arrows), updated each 3 seconds. - RICK - TODO -
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| 62 | compass call
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| 63 |
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| 64 | Tapping with a finger on the screen should set a new waypoint to which
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| 65 | the driver should be taken first, before the final target is reached. -
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| 66 | XXX - TODO
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| 67 |
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| 68 | Target selecting screen: - HUGO - TODO
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| 69 | The device must show a list on screen which shows:
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| 70 | - current target and waypoints, ordered on current distance, and tapping
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| 71 | on one of those should select it. Pressing the "-" should delete the
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| 72 | selected target / waypoint. - HUGO - TODO
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| 73 | - nearby points of interest and important roads (highways) (first half
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| 74 | of the screen), which can be added with "+" as waypoint or with
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| 75 | "select" as destination (target). - HUGO - TODO
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| 76 | - a touchscreen virtual keyboard input to specify a target, which can be
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| 77 | added with "+" as waypoint or with "select" as destination (target). - HUGO - TODO
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| 78 | If the target is not recognized, then it should be shown in red, and
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| 79 | not be added as waypoint or destination. If it is recognized, it
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| 80 | should be shown in blue. A list of three suggested targets based on
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| 81 | the current input should be shown below the text input. - HUGO - TODO
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| 82 |
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| 83 | * Usability
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| 84 |
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| 85 | The usability is guaranteed by using only a few buttons and where
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| 86 | possible the touch screen input. Users instantly see their current
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| 87 | position and current map. The usability is further improved by fast
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| 88 | updating important information and not showing too much information and
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| 89 | arcane options. - HUGO - TODO
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| 90 |
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| 91 | * Performance
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| 92 |
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| 93 | A performance minimum for updating driving directions, current location
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| 94 | and so forth is given in the requirements for the main screen. The
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| 95 | performance should allow the driver to act quickly on changing
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| 96 | directions and to have a relevant and actual view on his/her
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| 97 | environment. - RICK - TODO
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| 98 |
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| 99 | * Accuracy
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| 100 |
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| 101 | Here, maximum errors / deviations are given:
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| 102 | - current speed: max 10% RICK - TODO
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| 103 | - current location: max 25 meters while driving (less is difficult with
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| 104 | current GPS technology) max 12 meters while standing still - HUGO - TODO
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| 105 | - current time: max 2 min. - RICK - TODO
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| 106 | - ETA: this is a guess, so up to 20% of the time to travel may be wrong
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| 107 | 95% of time - RICK - TODO
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| 108 | - traffic jams: this depends on RDS data, so accuracy cannot be
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| 109 | guaranteed by the CNS - RICK - NA
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| 110 |
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| 111 | * Quality
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| 112 |
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| 113 | The device must withstand small drops of water (like when raining),
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| 114 | sunshine behind glass, operating temperatures from -20 up to 80 degreed
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| 115 | Celsius, drops from table-level heights, and firm finger presses on the
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| 116 | touch screen. - RICK - NA
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| 117 |
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| 118 | The GPS and RDS modules must be replaceable with newer modules. - RICK
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| 119 | - TODO
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| 120 |
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| 121 | The internal map must be stored on a removable storage, so make updating
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| 122 | possible. - RICK - DONE - Stored online.
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| 123 |
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| 124 | The software should be programmed using the object oriented paradigm. -
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| 125 | RICK - DONE - Java
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