Marin County 05/28/25 | ThirdWave Corp

ThirdWave Completes Largest Property Assessment Tax System Business Process Analysis in the State

May 28, 2025

San Rafael, CA. ThirdWave Corp has completed the largest business process mapping and requirements definition project in the State of California for Marin County.

The engagement employed ThirdWave’s patented Rapid Workflow Process Modeling® method to articulate high level business and system requirements, processes, and procedures to create an RFP for the replacement of the current aging property systems (using aging Cobol, VB6, ASP.NET). These systems include functionality for the Assessor Recorder, which includes property assessments and property recordings, in addition to the Department of Finance where property taxes are collected. Existing systems include:

ARCC (Assessor Recorder & County Clerk)

COMPASS (County of Marin Property Appraisal Support System)

CAPPS (County Assessor’s Personal Property System)

CAPPS2 (County Assessor’s Personal Property System)

RIIMS (Recorder Index Imaging System)

Assessor Recorder - DOF (Department of Finance)

TAPIS (Tax Assessment and Property Information System)

TIDAL (Tidal Software, IT workflow automation)

FIS (FIS Global, Third-party credit card processor)

DMV Access (In-house desktop application)

DOF (Department of Finance) Applications

RTL (RT Lawrence, remittance processing application)

Tax Bill Online (In-house web application)

Marin County Property Tax Exemptions (In-house web application)

HDL Prime (HDL Software LLC, Business License Administration)

The $213,000 Scope of Work included a massive effort to create 58 (fifty-eight) mission-critical process maps of all county functions. An impressive number of business process owners/SMEs, 650 (six hundred fifty), participated in the workshops. This set the stage for the next phase, the procurement of the new Property Assessment Tax System, estimated to cost between $12,000,000 and $15,000,000.

Noted Aymee Barajas, ThirdWave Corp, Sr. Business Analyst, “This was a very large project, requiring a significant effort by County staff over two years, and yet the project was able to capture all processes in a detailed manner.”