Created dataconsistency20131202 (markdown)

wiki/planning/businesscases/planning/businesscases/dataconsistency20131202.md

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+## Minutes from Initial Brainstorming Meeting (December 2, 2013)
+
+### Live-Delay Analysis
+* GPS per competitor
+* wind for advantage line
+
+### Outlier detection
+* GPS tracks
+* Wind
+
+### Dropout interpolation
+* GPS tracks
+* Wind
+
+### Connection loss
+* GPS Track:
+  * introduce states "no data" / "no connection"
+    * has to be based on transmission rates
+    * no ping available
+* Wind
+
+### Data consistency measures
+* Start Phase
+  * correctness of start time on start boat
+  * stabilize start detection algorithms / heuristic
+* Completeness of Leg
+  * mark tracks & passings
+  * gps fixes
+  * wind measurements
+  * leg type detection
+* Completeness of Race
+  * competitor tracks: gps, mark passings
+  * mark tracks: validation (compare marks & competitor tracks); recalculation of mark passings
+  * all competitor or topN competitors
+  * all marks or future (remaining) marks
+  * take into account #{common legs} of competitors in aggregate calculation
+* Completeness of Regatta
+  * (all races complete) only in rare cases achievable
+  * cleansing of races, if possible
+  * include race states, e.g. DNF, into aggregate calculations, e.g. average speed
+  * take into account #{common races} of competitors in aggregate calculation
+* Robustness of Aggregate Calculations
+  * on all levels: leg, race, regatta, regatta series
+  * aggregate calculation can be corrupted by filtered outliers, lost connection
+* Quality based on Outliers and/or Dropouts
+  * GPS
+  * Wind
+* Network Connectivity
+  * all required channels
+
+### Master Data
+* Competitors: names
+* Sail numbers
+* Boat classes: names
+* Scoring schemes: score corrections
+
+### Data properties to be visualized or accessible
+* Sampling frequency for GPS
+* Number of active GPS satellites
+* Reflect accuracies of measurements somehow on the UI, e.g. tails along GPS tracks
+
+### Extra-/Interpolation of GPS tracks
+* bridge phase without connection to network or connection to GPS satellites
+
+### Extra-/Interpolation for wind
+* bridge phases without estimation or measurement