Montana DEQ Water Quality Planning Bureau William Puknat May 14, 2013

OBJECTIVES History Understanding & Building Requirements Mock-up Approval Why Use EQuIS dB? Handling Errors User data entry, Run-time Demo Conclusion

HISTORY planners contract with vendor to generate report originated from field forms one contractor developed software to assist in reporting the contractor demonstrates software to planners planners want it… but also want some changes two years later…

HISTORY

SURPRISE! Can you fix this for us?

USEFULNESS

INVESTIGATION analysis.exe (VB6) user guide dB source code? complexity? exploitable? serviceability? will contractor assist? recommendation proceed or not? internal vs. external development?

DECISION go forth! internal development use VB.NET to create client application start from scratch temporary programmer generate requirements from existing application and documentation

REQUIREMENTS define forms database structure identify and define algorithms user interviews gap analysis

MOCK-UP build forms for user to see identify/define missing data fields update requirements document user sign-off

WHICH dB? MS Access Oracle MS SQL Server update requirements document IT sign-off

The EQuIS Advantage MS SQL Server Readily available No additional hosting costs Ability to use the EQuIS Report Engine Future integration with web application(s)/services EQuIS Professional as back-end tool

ALGORITHMS interview subject matter experts research verify update requirements document SME sign-off

HANDLING ERRORS run-time cryptic Microsoft error System.Number,StringToNumber(String str, NumberBuffer& number) at System.Number.ParseInt32(String s) at System.String.System.Iconvertible.ToInt32(IFormatProvider provider) at System.Convert.ToInt32(object value)… provide English for potential errors “Permission denied at dB when attempting to save Cross Section. ” sub-routine identification Error code CS351 “Permission denied at dB when attempting to save Cross Section. | Error code CS351” data entry one at a time when attempting to save concatenate till the end immediate

DEMO Field form Database tables Front-end Reports

REPORTS

CONCLUSION -Now successfully deployed and in production! next step -data entry -reports need to be defined -For more info / details on this application, contact Bill Puknat