FoxPro Application Maintenance

	Ted Roche
	Blackstone Incorporated
	http://www.bstone.com

Who Am I?

	Director of Development
	Microsoft Certified Solution Developer, Microsoft Certified Systems Engineer
	Co-Author Hacker’s Guide to VFP 6
	Microsoft Support MVP, 1994 – present

Maintenance

	Business Issues – Client’s and Consultant’s
	Auditing an application
	Tools to maintain application
	Issues in maintenance
	WTF code

Business Issues

	Cost-benefit, ROI, business case
	Structuring a maintenance contract
	Structuring a support contract
	Slices of the pie

Auditing an Application - 1

	Locate all source code
	Sort “live” code from old/temp code
	Process Project File or Directory
	Count #lines of code, comments, files
	DEMO

Auditing an Application – 2

	Review documentation
		ERD
		User Manuals
		Developer manuals, standards, notes

Auditing an Application – 3

	Review code
	Project structure, framework
	Code structure
	Commenting
	Maintenance

Tools to Maintain Application

	Existing documentation, if any
	FoxDoc / Documenting Wizard
	Filer to find code references
	Object Browser to document object model
	Hacker’s Guide / Help File

Issues in Maintenance

	Working with older runtimes/older environments “Gee, it doesn’t do that here”
	Hardware/OS updates not supported
		USB Printer on a DOS application
		WinMe locked at FILES=40

WTF Code

	“Two wrongs don’t make a right, but three rights make a left.”

Summary

	Business model for maintenance
	Audit unknown applications
	Build tools to assist in maintenance
	Anticipate challenges

"Thank you!"

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