Search and Access Services defines profiles supporting the discovery and visualization of services.
Complex search offers a natural and user-friendly way to find services by progressively refining search results using a variety of criteria including attributes, artifacts, classification, usage scenarios, and dependencies. This includes runtime contract discovery, a powerful query mechanism that allows either the service orchestrator or a program to find the services that best fit the requirements of a given process. This increases both runtime and design time flexibility by enabling selection of services based on computable metadata.
Note on Search Categorization For the purpose of requirements categorization, the search functional profiles were interpreted as follows; • Discover; search by example, implemented as an interface that takes an existing item and discovers similar items within the knowledge repository • Find; search by query, implemented as an interface which accepts criteria and finds responsive items in an index of some nature • Visualize; search by navigation, implemented as a graphical interface to follow linked data relationships through models and terminologies
Service generation is the ability to generate services from user defined service metadata. The semantic infrastructure provides this metadata and the platform leverages this metadata for service generation. The constraints and policies specified in the semantic infrastructure are inherited by the platform and are enforced as runtime policies.
Additional platform specific and runtime information is provided by the developer at the time of service generation.
Functional Profile
- 5.2.5.3.1 - Discover Sept. 6, 2010 A key function desired by virtually all stakeholders is the ability to query by example using an item from a model or vocabulary (e.g., data element, property, data type, constraint, relation, concept, etc.) to find equivalent and related elements defined anywhere in the knowledge repository. The response should provide an easily understood description of the degree and nature of the semantic convergence between the example item and responsive items.
- 5.2.5.3.2 - Find Sept. 6, 2010
- 5.2.5.3.3 - Runtime Contract Discovery Sept. 6, 2010 A powerful query mechanism that allows either the service orchestrator or a program to find the services that best fit the requirements of a given process. This increases both runtime and design time flexibility by enabling selection of services based on computable metadata.
- 5.2.5.3.4 - Service Generation Sept. 6, 2010 Service generation is the ability to generate services from user defined service metadata. The semantic infrastructure provides this metadata and the platform leverages this metadata for service generation. The constraints and policies specified in the semantic infrastructure are inherited by the platform and are enforced as runtime policies.
- 5.2.5.3.5 - Visualize Sept. 6, 2010 Given the complexity of the models in use, and the large number, users are constantly confronted with the problem of trying to gain an understanding of new domains not familiar to them. Visualizations of models and vocabularies are perceived as essential to this task. The requirement is to provide visualizations that are easy to navigate, that identify the contact points between models and between vocabularies and that allow users to seamlessly move from model constructs to data.
