Abstract
The Comprehensive Child Welfare Information System (CCWIS) final rule, effective in 2016, formalized a
modular, interoperable systems design philosophy for child welfare agencies, replacing the prior single vendor
Statewide Automated Child Welfare Information System (SACWIS) model. Human services leaders and systems
architects increasingly examined, through the late 2010s and into 2021, whether the same modularity and data
sharing principles could extend beyond child welfare to other major public benefits programs, including the
Supplemental Nutrition Assistance Program (SNAP), Medicaid, and Long Term Services and Supports (LTSS).
Each of these programs is governed by a distinct federal agency, a distinct funding and certification framework,
and, in most states, a distinct legacy eligibility or case management system, creating a fragmented technology
landscape even where the same households and individuals are served across multiple programs simultaneously.
This research article presents a cross program interoperability readiness framework, adapting CCWIS aligned
modularity and data sharing principles to the SNAP, Medicaid, and LTSS context. The framework evaluates
readiness across six dimensions: data governance and common data standards, modular and reusable system
architecture, master client index and identity resolution, eligibility and verification data sharing, security, privacy,
and cross program compliance, and interagency governance and program coordination. Grid based comparison
tables throughout the article summarize how each dimension applies differently across SNAP, Medicaid, and
LTSS given their distinct federal oversight structures.
Findings, drawn from federal guidance, published state planning materials, and human services technology
research through February 2021, indicate that agencies pursuing a shared master client index and common data
governance function across programs report measurably fewer duplicate client records and faster cross program
eligibility verification than agencies operating fully separate systems for each program.
Keywords
interoperability, CCWIS, SNAP, Medicaid, LTSS, MITA, modular architecture, master client index, data sharing, integrated eligibility, human services
References
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