{"id":4445,"date":"2023-04-02T16:41:14","date_gmt":"2023-04-02T15:41:14","guid":{"rendered":"https:\/\/www.architecturemaker.com\/?p=4445"},"modified":"2023-04-02T16:41:14","modified_gmt":"2023-04-02T15:41:14","slug":"what-is-service-layer-in-software-architecture","status":"publish","type":"post","link":"https:\/\/www.architecturemaker.com\/what-is-service-layer-in-software-architecture\/","title":{"rendered":"What is service layer in software architecture?"},"content":{"rendered":"

Service layer is a logical component in software architecture. It is a set of services that provide the business logic for an application. The service layer is responsible for handling the data and business logic for an application. It is also responsible for communicating with the other layers in the system.<\/p>\n

In software architecture, the service layer is an abstraction layer that contains the set of services that are required for the application. The services in the service layer are responsible for the business logic and orchestration of the application.<\/p>\n

What is a service layer in software? <\/h2>\n

Service layer is an abstraction over domain logic. It defines application’s boundary with a layer of services that establishes a set of available operations and coordinates the application’s response in each operation.<\/p>\n

A service layer is an additional layer in an ASP.NET MVC application that mediates communication between a controller and repository layer. The service layer contains business logic. In particular, it contains validation logic. For example, the product service layer in Listing 3 has a CreateProduct() method.<\/p>\n

What is the purpose of a service layer <\/h3>\n
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In intelligent networks (IN) and cellular networks, the service layer is a conceptual layer within a network service provider architecture. It aims at providing middleware that serves third-party value-added services and applications at a higher application layer. The service layer is responsible for enabling the network to support new services and applications quickly and efficiently.<\/p>\n

The service layer is an important part of the service-oriented architecture. It is responsible for organizing the services into a logical structure. The services in the service layer share functionality and are categorized into different layers. The service layer makes it easier to manage the services and to understand the dependencies between them.<\/p>\n

What are the three as a service layers? <\/h2>\n

SaaS, PaaS, and IaaS are all types of cloud computing.<\/p>\n

SaaS is software that is delivered over the internet. PaaS is a platform that allows you to develop and run applications over the internet. IaaS is infrastructure that is delivered over the internet.<\/p>\n

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I noticed that a service is more like a singleton that can be reused again and again (example: a REST client) whereas a model is more related to the data manipulations coming from the controller in the MVC pattern.<\/p>\n

Is a service layer and an application layer the same? <\/h2>\n

An application service is a deployment environment-independent logical unit of software functionality provided by a component of an application. It encapsulates a coherent set of activities that together implement a use case related to the application’s user.<\/p>\n

An application service should be stateless and should not maintain any knowledge of previous interactions with its consumers. This ensures that the service can be scaled horizontally by adding additional instances as needed.<\/p>\n

The service layer is a collection of application services that provide a complete set of functionality for an application. The term is often used in the context of service-oriented architecture (SOA), where the service layer is the set of services that make up the SOA.<\/p>\n

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The Service layer provides a set of Operations\/Transactions that can be performed over each Entities and their related Entities. Service layer is injected later in the Controller (REST) and Resolver (GraphQL) components to perform those operations based on incoming requests from individual microservices.<\/p>\n

What is a common service layer <\/h3>\n

The IMS CSL is a key component of the IMS architecture that provides the infrastructure needed for systems management tasks in an IMSplex. The CSL address spaces include the Open Database Manager (ODBM), Operations Manager (OM), Resource Manager (RM), and Structured Call Interface (SCI). The CSL provides the means by which IMS systems can be managed in a consistent, coordinated manner across an IMSplex.<\/p>\n

You don’t always need a service layer, especially if your APIs are just simple CRUD operations, for example, with no real logic required or calculations. However, if you have an API which performs some logic before querying your repository then this should be in a separate service class.