Download the complete service offering docx format of gis_data.doc


1. Description of Service

MassGIS can take various kinds of inputs, including geographic coordinates, data linked to addresses, towns or other geography as well as existing paper maps of regulated areas or resources and turn these inputs into GIS data. Many state agencies currently provide their data to MassGIS to be hosted in the Oracle repository of statewide data. From this database, located at MITC, GIS data can be served via the web either through interactive mapping (see service offering for web mapping services) or through GIS file download to a wide variety of map users including government or business entities and the general public.

Mapping an agency's mission-critical data can provide valuable insights about how best to deliver services - where the needs are and how to leverage resources most effectively. MassGIS can develop mapping from many kinds of input datasets. Once GIS data are developed, further analysis and integration with other data "layers" using GIS software can often make a significant contribution to policy development and strategic planning. A common first step is geocoding - assigning a geographic location to customer addresses. MassGIS has geocoded many millions of addresses, including statewide listings such as the property tax rolls from the Warren Group, RMV vehicle registrations, the 911 Emergency Service List etc. Some data, of course, are proprietary or confidential and cannot be published directly - but they can often be aggregated or analyzed in a way that eliminates concerns about privacy. Once geocoded, locations can be overlaid with Census block groups, legislative districts, regional office territories or any other geographic areas to provide summaries, analyze the data and discern patterns. Agencies can develop demographic profiles of their client base in this way to help target service delivery and ensure that appropriate resources are available where needed.

MassGIS Data Services include:

  • Geocoding:
    MassGIS maintains the most complete and accurate geocoding base available. Geocoding creates an estimated geographic location (x,y) for street addresses. Customer supplies list(s) of addresses with number, street and either zip code or "official" town.
  • GIS Data Development:
    MassGIS can take existing maps or lists linked to geography (e.g. regions made up of municipalities) and convert them to GIS data. GIS data development services involve creating GIS data from existing non-GIS sources. It can range from simple linkage of existing lists to geography (e.g. define regions by town) to map scanning and conversion into GIS format. In addition to doing work in house, MassGIS can provide review of specifications for conversion of existing data to GIS by outside consultants or for large and complex projects, project management services.
  • Address standardization:
    MassGIS can match addresses between different lists that have no other common field, using sophisticated address parsing. Address standardization involves parsing and standardizing address lists to meet the MassGIS standard (from Federal Geographic Data Committee Geocoding "hit" rates can be vastly improved through address parsing and standardization (see service description below). Also, address standardization is required to link separate lists or tables which have only an address field in common. This need arises frequently when matching lists from different agencies which have no common ids.
  • Geographic Analysis and Reporting:
    Combines GIS data from different sources to derive added value. Geographic analysis and overlay will be customized to meet agency needs. Agencies can often achieve strategic insight by simply mapping their data (through service offerings described above). However, in many cases, geographic overlay will add value to the mapping, by combining different geographic layers. For example - how far are my customers, on average, from the locations that serve them? Many statistics and reports, including proximity, demographics, density, and geographic aggregation and so on can be derived from GIS analysis.
  • Data Hosting:
    MassGIS will host agency GIS datasets for download and for input to web mapping services. GIS data hosting allows agency data to be served from the MITC Data Center to GIS users both inside and outside Magnet (see web services description). Data hosting also allows data to be downloaded.


Support services include:


2. Service Targets and Metrics


Service RequirementDescription
Service AvailabilityService Availability hours are 9:00 AM to 5:00 PM, Monday through Friday excluding planned maintenance and unplanned outages. Staff is on standby to ensure recovery of service in the case of outages.
Incident Management*MassIT Service Management Office has standard processes to manage incidents, requests, and changes.
Request Fulfillment*

Staff will respond to service requests 9:00 AM to 5:00 PM, Monday through Friday excluding holidays. 

Off hour request: Must be opened via CommonHelp.






Database capacityVector data totals approximately 400GB. Storage is set up to be extensible.Schema storage is monitored by DBA on an ongoing basis.
Geoprocessing response timeIndividual geoprocessing requests may suffer performance issues or even get hung. To resolve, MassGIS can restructure or partition the geoprocessing activity.Process elapsed time, resource usage




MassGIS data serverFrequest monitoring of Oracle data server availability.Standard monitoring of CPU, memory, and disk space; additional monitoring of data requests by Web Services using monitoring and web mapping tools. .

*Incidents, requests, or changes that are outside the scope of the defined service description or normal service hours will be direct charged to the customer.


3. Service Reporting

ReportsDescriptionReport Interval
QA ReportsThese are generated for any geocoding, address standardization or data development service request detailing issues with the input data or with the data conversion that affected the output e.g., addresses that could not be matched because of formatting or missing geography.Upon Request through COMiT
Project ReportsGeographic analysis and reporting is highly customized and depends on the scope of the project. Project reports include periodic status reports, percent completion for deliverables, summaries of staff effort and unresolved issues requiring customer input.As determined by Project Team



4. Service Requests

COMiT Service Request


Lead Time-Business Days
Address Processing

This request includes the following services:

1. Geocoding (locating addresses).

2. Data standardization using FGDC standard.

3. Data matching to improve geocode rate.

0-5 Days
GIS Data Development*

This request is for completion of a Data Development project. The scope and duration of such projects can vary greatly, involving both in-house effort and / or vendor support. This request includes the following components:

1. Evaluation of the customer's data development requirements. 

2. Preparation of the specifications for data acquisition or conversion. 

Depending on project scope, project may involve:

     -heads up digitizing or other data conversion,

     -project management with external vendor support, 

     -data aggregation from multiple partners or other coordination.


Lead time depends on project complexity.

GIS data and data maintenance hosting

This request includes the following components: 

1. Review data specs prior to being hosted.

2. Create/maintain SDE schemas for new agency datasets if needed (transactional only).

3. Load data into Spatial Data Engine.

4. Review data quality and consistency.

5. Prepare/review metadata.

6. Create/maintain agency user accounts and permissions for access to data (maintenance).

2-5 Days
Hosted Data Update*This request is for updating an existing layer5 Days
Geographic Analysis and Reporting*This request covers working with existing GIS data to provide reports and analysis based on customer needs.Lead time depends on project complexity.
General Data Inquiries and OrdersThis is a general request for GIS data.Lead time depends on project complexity.

*For new service requests only. To manage existing requests, please log into COMiT.

5. Customer Responsibilities

Customer responsibilities include but are not limited to:

  • Provide overall design guidance and helping to develop specific requirements
  • Provide all necessary input data sets unless otherwise agreed
  • Respond in a timely manner to issues identified by MassIT
  • Provide necessary metadata and documentation

For your convenience, you may also view a detailed list of customer responsibilities docx format of gis_data.doc


6. Chargeback Rate Information

For more information on Chargeback, including an overview of the program as well as current and previous fiscal year rates, please visit our Chageback Service webpage

Updated September 03, 2015
Reviewed August 16, 2016
Created September 12, 2010;
Information provided by the Office on Geographical Information (MassGIS)