Download the complete service offering docx format of gis_web_mapping.doc

1. Description of Service

The inclusion of GIS mapping can make an agency's web site much more useful and engaging to the public and to interested constituencies.  GIS web services can provide maps or map-derived information in real time, for any location at any desired scale, without the need to create or update published graphics.

GIS can summarize statistical information with thematic maps in an intuitive and appealing way such as displaying towns shaded by project expenditures or tax revenues per capita.  Interactive web mapping applications can also respond to end-user queries that begin with a specific location such as "show me the closest school to my neighborhood."

GIS servers can respond to interactive mapping requests from a variety of web clients.  GIS web services can be used to provide:

  • Dynamic and interactive maps for a new or existing web site
  • Geographic location and data from map queries
  • Basic web mapping applications based on existing templates
  • Mapping developed in partnership with vendors embedded in more complex applications

Possible frameworks for client development include JavaScript, Flash and Silverlight with various libraries and templates available to support using GIS data.  Mapping typically shows customer specific data, such as site locations, regulated areas, resource data or thematic mapping on top of a MassGIS supplied base map.  Data of interest is displayed in real time and at any scale from statewide to neighborhood. Interaction is through standard map query tools - choosing a town or other area of interest from a drop-down list, panning and zooming using map tools, adding or removing layers of information from the map, etc.  End users can query individual mapped features to list descriptive text through the interface.  Thematic mapping can be used to symbolize data in an easily-understood, intuitive form - e.g. MCAS results by district.  Map services can also respond to geographic queries with tabular data.  For example, an end-user could ask for a list of features within a certain distance, or for summary totals based on a geographic unit.  Many examples of web mapping are available at the MassGIS web site .

MassGIS can prepare and host the customer data to be served.  MassGIS can also provide a separate interface for the client to maintain their own geographic and tabular data.  If desired, end-users can enter or edit geographic or other data using the browser interface.  Since these services are all based on standard APIs, MassGIS can work with agency programming staff or with vendors to embed mapping in more complex web applications.

For additional detailed technical information please see: Wiki MassGIS

Support services include:



2. Service Targets and Metrics


For On-line Web Mapping Services via XML Gateway:

Service RequirementDescription
Service AvailabilityService availability hours are 24 x 7 excluding planned maintenance and unplanned outages.
Incident Management*MassIT Service Management Office has standard processes to manage incidents, requests, and changes.
Request Fulfillment*Service requests are responded to 9:00 a.m. to 5:00 p.m. Monday through Friday excluding holidays.  Off hour request: Must be opened via CommonHelp.

 *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.

For Development of Web Mapping Services, Web Map Design and Simple Applications:

Service RequirementDescription
Service AvailabilityMassGIS staff will work with project team to schedule availability.
Request Fulfillment*Service requests are responded to 9:00 a.m. to 5:00 p.m. Monday through Friday excluding holidays.  Off hour requests must be opened via CommonHelp.






Web service response timeResponse time monitored for web mapping services and load balancing ensures full utilization of the web mapping servers. 

Stress test of geocoding  (sustainable hits per minute)  


Web service capacityTotal hits per week monitored for individual base-mapping services and for Geoserver requests (OLIVER). Count of hits on each service




Web services availabilityWeb service requests and server availability monitored during business hours.  Operations monitors availability for all servers off-hours. System monitoring of CPU, memory, and disk space. Test services requests sent constantly. 


3. Service Reporting

ReportsDescriptionReport Interval
Service StatusReports exist for service status monitoring which can be accessed by partner agencies.Real-time, on-line
Data DownloadReports can be generated on FTP download statistics of hosted agency data.On request
Application UsageListing of "hits" on applications, number of distinct users, sessions etc.On request or agreed-upon schedule
Data Layer AccessCan report on access to specific data layers via OLIVER.On request or agreed-upon schedule



4. Service Requests

COMiT Service Requests DescriptionLead Time-Business Days
General Mapping Inquiries*This request is for general questions and advice about web mapping.1-2 Days

Web Mapping Service Support*

This includes all necessary work to create a new mapping service for a customer application using Open Geospatial Consortium or ESRI ArcServer API. Elements are:
1. Map design including scale dependency, symbology, sect 508 compliance.
2. Support with request generation code and templates such as Open Layers.

Additional support may be required to process and load customer data for display.

2-14 Days
Web Mapping Application Development Support*A variety of templates and models exist which can be leveraged to provide web mapping applications that meet customer needs. This service differs from Web Mapping Service Support in that web page design and web application codes are involved.Lead time depends on specific request and complexity - normally a few weeks
Web Mapping Service Support for Vendor-Provided Applications*Consultation with agencies and selected vendors on the best way to integrate map content into applications being developed.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 design guidance and decision making in a timely manner.
  • If address or other data are used in the mapping, customer will be responsible for data quality and formatting. Batch geocoding and data preparation may involve additional services.
  • If customer is doing their own development, then project staff assigned must have appropriate skill levels.
  • If coordinating with a vendor is required, customer will ensure that vendor is responsive and ensures the availability of appropriate staff resources. Vendor management and oversight is customer's responsibility. All vendor costs will be the responsibility of the customer.

For your convenience, you may also view a detailed list of customer responsibilities docx format of Anchor link for Customer Detail


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 Chargeback Services webpage.



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