MEALTRACKER Dietary Software Pocket APL Dyalog 09 Richard

MEALTRACKER Dietary Software & Pocket. APL Dyalog ’ 09 Richard Procter, APL Borealis Inc. rjp@aplborealis. com

MEALTRACKER Dietary Software & Pocket. APL • portability • feedback loop • nutrition analysis

MEALTRACKER Dietary Software & Pocket. APL • small company • Base product: APL(+Win) 1985 -2009, now. Net • Pocket. APL module: 2003. . . • 1000+ installations (12 now using the Pocket. APL module) • customer-driven

MEALTRACKER Dietary Software & Pocket. APL Why Hand-Held? 1) what did people eat? 2) what do they want to eat?

MEALTRACKER Dietary Software & Pocket. APL Device / Platform Issues • limitations (input, speed, memory, screensize, fonts, . . . ) • GUI – visuals & events (vs. desktop) • functionality (vs. desktop) • menu (disappearance) • application Close • interruptions

MEALTRACKER Dietary Software & Pocket. APL Mechanics & Development • develop on desktop; test on PDA; deploy as run-time • mimic PDA environment on desktop • KISS – interface & development • Ray Cannon utils • GUI / screen-size – now multiple screens • keyboard pop-up

MEALTRACKER Dietary Software & Pocket. APL completed transfer file Two Applications • Consumption Monitor • Selective Menus completed transfer file

MEALTRACKER Dietary Software & Pocket. APL Transfer File > APL Arrays • simple, delimited text • very “table-driven” • APL arrays for “table info” and “data” • temp storage of changes - room to room – APL and native files • issues: size, missing data

MEALTRACKER Dietary Software & Pocket. APL Key Points • major time-saving on data input • ongoing incompatibility/platform issues • positive feedback / competitive edge Richard Procter rjp@aplborealis. com