GIS Data Conversion& Migration

VECTOR specializes in the data conversion (digitization) of Parcel mapping, Municipal GIS data conversion, sanitary sewer, storm water, and electrical utility systems, and street centerline data.

Our team can be easily dizitized and migrated to other GIS platforms such as ESRI, MicroStation and AutoCAD. Data can be delivered in formats suitable for direct use in GIS software, and/or in popular interchange formats for exchange with other entities.

As part of our quality assurance/quality control (QA/QC) program, we utilize a combination of manual and automated validation techniques to ensure the digital data layers meet national mapping standards for horizontal accuracy and attribute values.

• Parcel Mapping
• Electrical Facility Migration
• Cadastre and Land Records GIS Mapping
• Impervious Surface Mapping
• Property Assessment Building Capture
• Street Centerline Mapping
• CAD - Geodatabase Migration

The cadastral or parcel mapping process begins with extensive research drawing on source documents, which might include tax records, legal descriptions, subdivision plats, surveys or deeds. Geographic information is compiled and reconciled against precision aerial photography, and parcel identification numbers applied. Quality control is stressed throughout the database development process.

Pre process:
This process is followed to understand the completeness and condition of the inputs and help smooth flow for all subsequent activities.

Geo referencing:
Annotation representing the various information like Block, section, dimension and other Details are available at local coordinates whereas they need to be lined up on to their relevant Parcel or blocks or sections.

Creation of Parcel lines:
Annotation values such as lot dimensions, sub division names and block numbers are transferred as attribute to corresponding line features where these attributes are stored and maintained in CAD environment.

Creation of Boundaries:
Boundaries of Subdivision and Blocks are identified and generated using client provided Shape files. Along with these boundaries Historic lot lines and Land Hooks and Easements will be extracted.

Attribute transfer:
Attributes are transferred to all boundary and line features using the annotation values, which are provided, in the DGN files.

Edge match:
All drawing files are inserted into single file and edge matched to make seamless data of Existing features. Topology checks would be done on the seamless data.

Quality Control:

• Integrity of the digital file, including
• Data Capture consistency
• Layer convention
• Check for correctness of dimensions

Graphic data

• Correctness
• Completeness
• Topology
• Attributes Information
• Completeness
• Correctness

General

• File formats
• Data Corruption

Our QA and Acceptance Criteria
Quality assurance is the process of providing adequate confidence that the final Product optimally fulfills the intended purpose through rigorous checking of the Final product.

The QA process will review the following items:

• Adherence to all database attribute design and output format
• Correct entry of all feature attribute data
• Correct spatial position of each feature
• Completeness of all available features and attributes
• Data would be checked to ensure there is topological accuracy