The Imagine PA team used the above Business Process approach in its implementation strategy. Table 2 below shows the timeline for each implementation wave as well as specific functions that were implemented in each wave and the agencies involved.

Table 2. ERP Implementation Phases
Date / Phase	Agencies Involved	Functional Areas Affected
July 2002 Wave 1	Executive offices of the Office of Administration Executive offices of the Office of Budget Aging Agriculture Banking Emergency Management Health General Services Insurance Military and Veterans Affairs State State Police Public Utility Securities Commission Attorney General	Budgeting preparation (All Agencies) Budget execution Accounting Procurement Workflow Business Warehouse Travel planning Construction Project Administration
October 2002 Wave 2	Community and Economic Development Conservation and Natural Resources Corrections Education Revenue Municipal Retirement Public School Employee Retirement System State Employee Retirement System Civil Service Fish and Boat Game	Budget execution Accounting Procurement Workflow Business Warehouse Travel planning Construction Project Administration
January 2003 Wave 3A	Public Welfare Pittsburgh Ports Probation and Parole Tax Equalization Historical and Museum Commission	Budget execution Accounting Procurement Workflow Business Warehouse Travel planning Construction Project Administration
July 2003 Wave 3B	Environmental Protection Environmental Hearing Board Labor and Industry Liquor Control Board	Budget execution Accounting Procurement Workflow Business Warehouse Travel planning Construction Project Administration Travel Expenses (All Agencies)
January 2004 Wave 4	All Wave 1 through Wave 3C Agencies	Human Resources Payroll Time ESS Workflow
July 2004 Wave 3C	Department of Transportation	Budget execution Accounting Procurement Workflow Business Warehouse Travel planning Travel Expense Reporting Construction Project Administration