Skip to Main Content

An official website of the Commonwealth of Massachusetts

  • mass.gov
  • Contact
BEST
BEST
  • A&F
  • CTR
  • EOTSS
  • HRD
  • A&F
  • CTR
  • EOTSS
  • HRD
  • BEST Overview
    • Why Transform?
    • Program Goals
    • Benefits of SaaS
    • BEST Program Overview
    • Program Leaders
      • Executive Sponsors
      • Program Management Office Leadership
  • Phase 1
    • Scope & Benefits
    • Advisory Groups
      • Architectural Review Board
      • BEST Advisory Committee
      • Business & Technical Transformation Board
  • Phase 2
    • Scope & Benefits
    • Advisory Groups
      • Architectural Review Board
      • BEST Advisory Council
  • FAQs
    • General FAQs
    • Phase 1 FAQs
    • Phase 2 FAQs
  • News
    • Program Updates
  • Contact
mass.gov Contact
Picture of Boston MA state house profile

Transforming Financial and HR Operations Across the Commonwealth

Why Transform?

The Business Enterprise Systems Transformation (BEST) Program is a multi-year program that is working to replace two 20-year-old applications used by all state agencies:

Massachusetts Management Accounting & Reporting System (MMARS) → Mosaic Human Resources/Compensation Management System (HR/CMS) → Workday

Latest News

View All News
From the Sponsors, Phase 2 November 12, 2026

Executive Sponsor Update: Our Workday 2028 Goals

Learn More
From the Sponsors, Phase 2 April 15, 2026

BEST Program Announces Workday and Accenture Partnership, Launching Phase 2

Learn More

Timeline

View Program Overview
2017-2022

BEST PMO Established

2023-2025

Phase 1: Mosaic Implementation and Go-Live

2026

Phase 2: Workday Selected; Planning & Agency Engagement

2027

Phase 2: Testing and Training

2028

Phase 2: Anticipated Workday Go-Live

Executive Sponsors

  • Headshot of Matthew Gorzkowicz, Secretary of the Executive Office of Administration and Finance

    Matthew Gorzkowicz

    Secretary, Executive Office for Administration and Finance

  • Headshot of William McNamara Comptroller of the Commonwealth of Massachusetts

    William McNamara

    Comptroller, Commonwealth of Massachusetts

  • Headshot of Chief Human Resources Officer for the Commonwealth of Massachusetts Melissa Pullin

    Melissa Pullin

    Chief Human Resources Officer, Commonwealth of Massachusetts

  • Headshot of Jason Snyder, Secretary of the Executive Office of Technology Services and Security

    Jason Snyder

    Secretary, Executive Office of Technology Services and Security

Word cloud in shape of state of Massachusetts with many words

More about the BEST Program

  • The Business Enterprise Systems Transformation (BEST) Program recently achieved a major milestone by replacing the 20-year-old Massachusetts Management Accounting & Reporting System (MMARS) with Mosaic.
  • This transition earned the BEST Program Phase 1 team a nomination for the prestigious Manuel Carballo Governor’s Award for Excellence in Public Service.
  • Efforts are now fully focused on Phase 2 of the roadmap: migrating the Human Resources/Compensation Management System (HR/CMS) to Workday

BEST By the Numbers

145,000

State-wide employees will benefit

99,121

Employees paid every 2 weeks through HR/CMS (FY2026 Q4 Average)

157

Commonwealth agencies participating

1,236

Average Daily Mosaic Users

  • Mass.gov
  • CTR
  • A&F
  • EOTSS
  • HRD
BEST
[email protected]

©2026 BEST PMO   |   Privacy Policy | Cookie Declaration

Website Design by Jackrabbit