Cadastral data conversion project
Jackson County, MS
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Core
Technical Expertise
Cadastral
Mapping
To meet a community's
parcel information needs, Sewall performs comprehensive cadastral
mapping services, including deed research and recompilation, tax
map automation, and annual updating. With over 50 years' experience
in municipal mapping, Sewall provides local governments and their
constituencies with effective solutions to the increasingly complex
problems of data management. Whether for tax assessment or land
use planning, Sewall helps clients develop efficient, multi-purpose
GIS databases, while utilizing existing investments in base and
parcel mapping.
ACCURATE
NEEDS ASSESSMENT
From Dennistown Plantation,
Maine, to Mecklenburg County, North Carolina, Sewall's cartographers
and GIS analysts have successfully guided governments in the process
of converting hard-copy parcel data to various industry-standard
digital formats. On projects ranging from 30 to over 250,000 parcels,
Sewall assists government officials in determining the accuracy
of existing tax maps, the accuracy required, and, when necessary,
the most suitable method of capturing new data. Because methods
of converting parcel data vary in accuracy and cost, Sewall explores
all options with clients thoroughly so that their choice of system
is informed.
FROM
MANUAL TO DIGITAL
To test project specifications
and methodologies, Sewall often suggests selecting a pilot area
for prototype mapping. A prototype helps establish standards for
consistent data handling and quality control throughout every phase
of the data conversion process. In addition, a prototype identifies
the challenges that officials will inevitably confront in the transition
from a manual to digital environment, including managing a dual
manual-digital system before automation is complete. Because conversion
often necessitates a huge change in the structure of government
administrative and technical systems, Sewall personnel use proven
strategies to facilitate a smooth transition. During system implementation,
Sewall conducts complete on-site training for users. Once data conversion
is complete, Sewall is prepared to maintain conversion files at
the client's request. Sewall currently updates the map systems of
more than 100 municipalities in a digital environment.
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