User:Cathrynzimmer/sandbox

Managing and disseminating digital geospatial data is accomplished via geographic information systems (GIS) and other geospatial technologies. ERDAS APOLLO is a geospatial data management and dissemination system, or GIS, that supports cataloging both file-based data and third party web services and implements a service-oriented architecture (SOA). The application can also catalog generic digital objects, such as Microsoft file extensions, pdf, video and audio files, alongside of the digital geospatial data.

History
In 2007, Leica Geosystems Geospatial Imaging (later rebranded ERDAS, Inc., now part of Intergraph) acquired IONIC Software for the RedSpider suite of products (including RedSpider Enterprise). Core competencies of IONIC included vector serving, OGC and ISO compliance, geoportal toolkit and SOA. In the same year, Leica Geosystems also acquired ER Mapper for its remote sensing and image web serving capabilities. ERDAS APOLLO is the integration of these and other functionalities into one geospatial client-server application.

Data model
ERDAS APOLLO enables data model development and leverages both proprietary and OGC web service capabilities to deliver hierarchical layers of geospatial data. Heterogeneous data is made available through homogenous service layers, regardless of the internal physical storage location of the data or technical factors (i.e. format, sensor model or CRS, bit depth, etc). Data assets in the catalog can be searched using both metadata and spatial constraints.

Data delivery
ERDAS APOLLO implements OGC/ISO standard web services and metadata; including, but not limited to, comprehensive Web Map Service (WMS), Web Coverage Service (WCS), Catalog Service for the Web (CS-W), Web Feature Service (WFS), transactional Web Feature Service (WFS-T), Web Map Context (WMC), Web Map Tile Service (WMTS), Web Processing Service (WPS) and ISO 19115/19139 metadata standards. The proprietary streaming imagery protocol "Enhanced Compression Wavelet Protocol" (ECWP) enables serving over 5,000 clients from a standard server. Data may also be delivered as tiles using standard or proprietary services,, and data download or provisioning via clip-zip and ship is supported.

Server-side Geoprocessing
Server-side geoprocessing is enabled via spatial models created in ERDAS IMAGINE and published to ERDAS APOLLO.

Security
The security model supports user and role-based security and also geographical-based tools to specify security including spatial area and scale. Administrators assign access and permissions to users and roles for all data and geoprocesses in the system.

IT
ERDAS APOLLO supports the following relational database management systems (RDBMS) for persisting metadata and application specific information: JavaEE and REST, and supports Microsoft SQL Server, Oracle, and PostgreSQL   ERDAS APOLLO may be deployed on-site, in a cloud computing environment, and supports clustering.