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This release of the PDS4 System represents Build 1c and is intended as a prototype release in support of the assessment of the PDS4 standards and the system components to date. The following sections can be found in this document:
This section details the controlling and applicable documents referenced for this release. The controlling documents are as follows:
The applicable documents are as follows:
This section details the new, modified and corrected capabilities that comprise this release. They are summarized here for a system-level view. A more detailed list of capabilities can be found in the release notes and change logs for each component.
The following capabilities are new for this release:
The following capabilities have been modified for this release:
This section details the liens against the capabilities that have yet to be implemented or are partially implemented. They are summarized here for a system-level view. A more detailed list of liens can be found in the release notes for each component.
This section details the system requirements for installing and operating the software. The custom software contained in this release was developed using Java and will run on any platform with a supported Java Runtime Environment (JRE). The software was specifically developed under Sun Java version 1.6 and has only been tested with this version.
The other main system requirement pertains to providing an application server for hosting certain components (Registry Service, Registry User Interface and Report Service). The suggested application server for this release is Apache Tomcat with a minimal version of 6.0.20.
Specific system requirements for each component in this release can be found in their respective Installation documents.
This section details the installation and operation of the software in this release. This release is intended for deployment in the Engineering Node operations environment with certain components deployed in the environments of participating Nodes. Details regarding the release for each of these components, including installation of the packages and operation of the associated software, can be found in the documentation for each component. This release is comprised of the following versions of the components:
This section details deployment to the EN operations environment. The following diagram details the deployment of the major components of this release and gives a very high-level view of the interfaces between the components and system resources:
The components depicted above serve as the operational deployment of this release for the Engineering Node. The main purpose of this deployment is for demonstration and testing purposes.
The Registry Service provides functionality for tracking, auditing, locating and maintaining artifacts within the system. For this release, the registry is populated with the PDS4 context products migrated from the PDS3 central catalog database. New for this release, the EN deployment will utilize MySQL as the backend database for the service. The web-based endpoint for this service is http://pdsops2.jpl.nasa.gov/registry-service/registry/.
The Registry User Interface provides a simple viewing capability of the contents of the associated Registry Service. It is intended to offer visual verification of successful registration of products. The web-based endpoint for this application is http://pdsops2.jpl.nasa.gov/registry-ui/.
The Report Service provides the capability for capturing and reporting metrics. With this release and the previous release, this service is undergoing testing of configurations and features with a set of metrics from the Engineering Node and the Imaging Node at JPL. This service is not yet available to the user community. The web-based endpoint for this service is http://pdsops.jpl.nasa.gov/report-service/.
The Security Service provides authentication and authorization functions for the system. This service is satisfied with an open source directory service. The directory service is populated with the PDS personnel list extracted from the PDS3 central catalog database. The application server hosting the Registry Service and Registry User Interface is configured to restrict access to certain URLs and to forward those requests to this service for authentication and authorization.
The Harvest Tool provides the means for registering products with the Registry Service. This tool reads a PDS4 product label, extracts specified metadata and registers the product with the registry. This tool allows the user to register a batch of products and generates a summary report.
This section details the deployment to a participating Node environment. The Nodes are asked to download, install and exercise the software that makes up this release. The following diagram details an example deployment of selected components:
The selected components depicted above are intended to aid the Nodes in their PDS3 to PDS4 conversion exercises. The following diagram depicts a normalized system flow, starting with schema design, continuing onto data product label generation and validation and finishing up with data product registration:
The system flow depicted above is described in more detail in the Data Provider's Handbook, albeit with a different flavor of this diagram. This diagram identifies where the system components come into play within the system flow. These components and the ones depicted in the deployment diagram, are described in more detail with respect to how the components can be utilized in the PDS3 to PDS4 conversion exercises with an eye towards testing these components for use in operations:
Although not depicted in the deployment diagram, the Design Tool is intended to aid users in the development of their data product label schemas. This release identifies two off-the-shelf products (Oxygen and Eclipse) that are available for this purpose. The provided documentation guides the user with respect to the download, installation and operation of each of these products.
The Validate Tool comes pre-packaged with the latest version of the generic schemas generated from the data model. The tool allows the user to validate collections of products or single products against the associated generic schema. Specific schemas can be passed into the tool to enable a more detailed validation check. Although the Design Tools listed above provide a file-by-file validation capability, this tool allows the user to validate a batch of products and generates a summary report.
The Registry Service provides functionality for tracking, auditing, locating and maintaining artifacts within the system. Ultimately, all products (including PDS3 products) will be registered and tracked with the Registry Service. For this release, users are asked to install and configure a local instance of the service in order to exercise this procedure. Additionally if the user is participating in the PDS3 to PDS4 conversion exercises, the resulting products or collections of products can be registered with their local registry instance. For this release, it is assumed that the Node deployments will utilize Derby as the backend database for the service. If MySQL is preferred, a specific package can be provided upon request.
The Registry User Interface provides a simple viewing capability of the contents of the associated Registry Service. It is intended to offer visual verification of successful registration of products.
The Harvest Tool provides the means for registering products with the Registry Service. This tool reads a PDS4 product label, extracts specified metadata and registers the product with the registry. This tool functions as the Validate Tool does, in that it allows the user to register a batch of products and generates a summary report.