The primary responsibility of the Service Container is to encapsulate the code that implements the low-level details of communicating with a service into this ABB. SOA is viewed as 5 different horizontal layers which are:. Ability to support the integration of the security access control descriptions for services with the runtime elements of the Governance and Quality of Service Layers of the SOA RA, Ability to support standards that are compliant to consume the security policy descriptions and convert them into assets consumable by the associated ABBs within the layer, Ability to cluster services which are contained by the service provider to invoke layers such as the Integration Layer; this capability enables the Services Layer to support the QoS requirements with regard to response and reliability, Ability to distribute services which are contained by the service provider to invoke layers such as the Integration Layer, Provide the container to support runtime service lifecycle management, Separate out service types and versions and invoke these services, Support scalability, which becomes critical with high-volume service invocations, Integrate cross-cutting concerns, allowing access control, audit and identity integration (security policies), and QoS policies to be integrated, Support the actual conversion and binding to the platform for an individual service, Service Repository ABB in the Governance Layer, Policy Manager ABB in the Governance Layer, Service Registry ABB in the Governance Layer, Policy Enforcer ABB in the Governance Layer, Access Controller ABB in the Quality of Service Layer, Status Manager ABB in the Quality of Service Layer. In Service oriented architecture (SOA), the service layer is the third layer in a five abstraction layer model. Service Oriented Architecture (SOA) is a computer systems architectural style for creating and using business processes, packaged as services, throughout their lifecycle. As outlined in Structural Overview of the Layer, one type of ABB in the Service Layer is a service. Services are naturally a key concept in any SOA and it is important to realize that there can be many different kinds. The runtime services are housed in a Service Container ABB using the hosting ABB. SOA allows reuse the service of an existing system alternately building the new system. Interactions with the external world are not limited to just interactions with humans; interaction logic orchestrates the interface to all kinds of devices and control systems, including vehicles, sensors, and RFID devices. Now, let’s move further and try to understand why soa is important and its benefits. Access services are most closely aligned with the Services Layer. The interfaces get exported as service descriptions in this layer, where services exist in isolation (atomic) or as composite services. SOA provides a new way of developing and integrating enterprise applications as it is based on interoperable, reusable services. Strategy and planning services are a category of services that supports creating a vision, blueprint, and transition plan for improving business outcomes. Likewise, the Status Manager can interact with the Service Interaction Manager to change the status of the service. It uses the state manager to address any state-related issues. For example, a service container, in which the services are hosted and invoked from, is also a part of the Services Layer. Second layer, well, you are reaching the point of diminishing returns, so the gains lesson.. put a layer of deadener on the inside, some MLV and you's cut a lot of it out.. 10-12-2009, 12:11 AM #37: TheShadowWRX. Ability to support the audit and logging of runtime service usage to support QoS attributes, with the potential use of standards such as CBE and XDAS to ensure consistent and interoperable data which can then be easily integrated with the Quality of Service Layer to support capabilities such as service monitoring, audit, compliance, and runtime governance. The most notable of which are business process flows, business state machines, business rules, and decision tree processing. The basic concept of service-oriented architecture (SOA) is to introduce a new layer of abstraction between the business and the IT of an organization [Buc+09]. Automated analysis of these metrics could automatically suggest improvements to the business design to better meet the business goals and objectives. This includes in a business process management context the management of business processes and monitoring of performance metrics and Key Performance Indicators (KPIs). What is SOA – Service Oriented Architecture | Explained 2020, Why Service Oriented Architecture (SOA) Is Important, Service-oriented modeling and architecture, Cloud Computing Advantages and Disadvantages | with 5 Issue, service-oriented architecture and cloud computing work together right here, https://www.oracle.com/technical-resources/articles/middleware/soa-ind-soa-cloud.html, Joe M. (2010). SOA Foundations. Lifecycle services can be applied to all categories of services, managing and governing the service definitions and service implementations within that category. It provides functionalities for the composition of a single service offered by the networked objects to build specific applications. Overview Your business strives to be agile to stay ahead of competitors and deliver increasing value to your customers. On this layer, there is no notion of devices, and the only visible assets are services. The Service Container ABB manages the runtime service lifecycle and uses the Service Interaction Manager ABB to invoke Service Components and the cluster manager to support scalability in the service container. Talend can help overcome some of the limitations associated with SOA. Management services implementations implement or use implementations of some of the ABBs in the Quality of Service Layer, including the Command and Control Manager, IT Systems Manager, Event Manager, Policy Enforcer, Configuration Manager, Security Manager, and Solution Manager, which include an Availability Manager, Reliability Manager, and Performance Manager. The Service Registry ABB then invokes the service hosted in the Service Container ABB where the Service Interaction Manager ABB then manages the interaction between the various ABBs within the container and other layers of the SOA RA. The California San Joaquin Valley (SJV) (see Fig. Interactions from the Services Layer to the Cross-Cutting Layers. They can be discovered and invoked, or possibly choreographed to create a composite service. Yet, having said that, their realization as processes properly belongs in the process layers and typically leverages other ABBs such as a Process Controller. A SOA service is a discrete unit of functionality that can be accessed remotely and acted upon and updated independently, such as retrieving a credit card statement online. Business services are a category of services that capture the business function and then introspect on the business design to improve it through a combination of iterative refinement and analysis of real-time business metrics. Upon completion of execution the service is propagated back up to the Service Binder, and then the Service Interaction Manager which applies policies using the Access Manager and the Policy Enforcement End-point, logs compliance and runtime logging information using the Policy Manager, and finally propagates the information via the Service Binder back to the Service Consumer. But it requires huge initial investment and change in mindset to adapt to new technology. The orchestration service layer introduces a parent level of abstraction that alleviates the need for other services to manage interaction details required to ensure that service operations are executed in a specific sequence (Figure 9.5). The SOA RA has been designed to specifically allow different technologies to be plugged at various layers of the system – allowing the trade-off of tight-integration QoS with the flexibility to pick-and-choose which mix of product technologies are appropriate for the business requirements and goals, and to address the inevitable heterogeneity of legacy environments. Interaction Flow for Service Discovery and Location. SOA is an approach for distributed systems architecture that employs loosely coupled services, standard interfaces and protocols, to deliver seamless cross-platform integration. The other major capability affor… Management service implementations in the Quality of Service Layer help to define KPIs; that is, those business objectives and general metrics that are desired to be monitored. The service layer provides capability servers owned by a telecommunication network service provider, accessed through open and secure Application Programming Interfaces by application layer servers owned by third-party content providers. The Access Manager provides Authorization and Authentication support in the context of the layer and integrates with corresponding ABBs which define security policies in the Quality of Service Layer. Management services are most closely aligned with the Quality of Service Layer. 6.2.1.2.3 Service Management These categories or types of services can be kept in mind when developing your service portfolio and your SOA solution portfolio. Development services are a category of services that encompass the entire suite of architecture tools, modeling tools, development tools, visual composition tools, assembly tools, methodologies, debugging aids, instrumentation tools, asset repositories, discovery agents, and publishing mechanisms needed to construct an SOA-based application. The notion of “programming to interfaces rather than implementation” only existed in the programming models such as Java and C++, but was never part of the architectural style until the advent of SOA and services. Services are offered by service providers and are consumed by service consumers (service requestors). The service implementations that provide the data logic have three major responsibilities: to provide access to the persistent data of the business, to support data composition of the business, and to provide their own sub-architecture for managing the flow of data across the organization. First, it’s important to note that Service-Oriented Architecture can work with or without cloud computing, although more and more businesses are moving file storage to the cloud so it makes sense to use cloud computing and Service-Oriented Architecture together. The Service Registry ABB in the Governance Layer supports the storage of and access to bindings at runtime to services hosted in the Service Container/Gateway ABB. These categories are capabilities which address the support of: This layer features the following supported capabilities: The ABBs responsible for providing these sets of capabilities in the Services Layer are: Quality of Service Layer: Policy Enforcer, Quality of Service Layer: Access Controller, ABB to Capability Mapping for the Services Layer. The Services Layer consists of all the services defined within the SOA. This layer can be thought of as containing the service descriptions for business capabilities and services as well as their IT manifestation during design time, as well as service contract and descriptions that will be used at runtime. It allows plugging in new services or upgrading existing services to place the new business requirements. Service connectivity services are a mix of domain-neutral (messaging products and ESBs available from many vendors), and domain-specific (the implementations of adapters needed from existing services and operational systems into the ESB). The idea behind such a layer is to have an architecture which can support multiple presentation layers such as web, mobile, etc. Adjusting what is seen and the behavior presented to the external world based on who the user is, what role they are performing, and their location. A SOA usually does not have a service layer, but a network of services. 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