Saudi Arabia Phone Number Database

Blog

Saudi Arabia Phone Number   database

The reason for every view is to accomplish the following:buy Saudi Arabia Phone Number  database for marketing

Logical view: The software components developed by programmers. In objects-oriented languages, these components are packages and classes. The connections between them are the relations between the classes and the packages which include inheritance, associations and dependent-on.

View of implementation — The result of the build process. This view is composed of mod-ules that represent packaged code, as well as components, which can be executed or deployable units made up of the modules. In Java the term “module” refers to an JAR file, while the term “component” is usually an WAR file, or an executable JAR file. The relationships between them comprise dependency relationships between modules as well as composition relationships between modules and components. Saudi Arabia Phone Number   database free

Process view – The components running at the time. Every element is an individual process, and the relationships between them represent the interprocess communication.

Deployment–How processes are mapped to machines. The elements of this model are comprised from (physical and virtual) machines as well as the processes. The interactions between machines constitute the network. This perspective also describes the relationships between machines and processes.

In addition to these view types, we also have four scenarios — the +1 in the model of 4+1– that allow views to be animated. Each scenario explains how different architectural components of each view cooperate in order to deal with the request. The logical view for example, demonstrates how the classes interact. In the same way, a scenario within the process view will show how the processes interact.

The view model 4+1 is a fantastic method to explain an application’s architecture. Each view explains an important element of the architecture and the examples show how the components of a view work together. Let’s take a look at the reasons why architecture is crucial. Saudi Arabia Phone Number   database
Why is architecture important?

A program has two types of requirements. The first is the functional requirements, which specify the tasks the application is required to perform. They usually take the form of user stories. Architecture has nothing to do with deal with the functional requirements. Functional requirements can be 

Saudi Arabia Phone Number  business  database free download implemented in almost any design including a large chunk of dirt.

Architecture is essential because it allows applications to meet the second set of requirements that is its requirements for quality of service. They are also referred to as quality attributes and are often referred to as”-ilities. The quality of the requirements for services define the runtime attributes like scalability and dependability. They also define development time features like maintainability and testability as well as deployment capability. The design you select for your application will determine the extent to which it will meet these requirements for quality. Saudi Arabia Phone Number   database

A brief overview of the architectural styles Saudi Arabia Phone Number  database for sale

In the real world, the architecture of a building typically follows a certain design style, like Victorian, American Craftsman, or Art Deco. The styles are a collection of design rules that restrict the design of a building’s features as well as its materials. The idea of style in architecture also applies to software. David Garlan and Mary Shaw (An Introduc-tion to Software Architecture, January 1994, able/ftp/intro_softarch/intro_softarch.pdf), pioneers in the discipline of software architecture, define an architectural style as follows:

Saudi Arabia Phone Number  mailing lists

A style of architecture, or architectural design describes a collection of these systems as a result of a structural arrangement. In particular the style of architecture determines the language of connectors and components that can be utilized in the context of that particular style, with a set of restrictions on how they may be used together. buy Saudi Arabia Phone Number  database for marketing
A specific architectural style offers an enumeration of components (components) and connections (connectors) that you can create a visual representation of the application’s design. A typical application employs the combination of styles of architecture. For example, later in this section I describe how the monolithic architecture is an archi-tectural style that structures the implementation view as a single (executable/deploy-able) component. The microservice architecture encapsulates an application in the form of a set of loosely connected services.

The ARCHITECTURAL STYLE LAYERED

The best model of architecture is the layered structure. Layered archi-tecture arranges software components into layers. Each layer is assigned a distinct responsibility. Layered architectures also limit the relationships between layers. A layer is only dependent on either the layer beneath it (if strictly layer-ing) or one of the layers beneath it.
It is possible to apply the layering architecture for any of the 4 views mentioned earlier. The three-tier model is the layering architecture that has been that is applied to the logic view. It organizes the class of the application into the following tiers , or layers: Saudi Arabia Phone Number   database

Presentation layer — Contains an application that implements the interface for users, or the external APIs

Layer of business logic – Contains the business logic

Persistence layer – Implements the logic of interfacing with the database

The layered structure is an outstanding illustration design style however it comes with important drawbacks.

Single presentation layer does not indicate the reality that an application could be likely to be used by more than one system.

One persistence layer does not represent the reality that an application is likely to be interacting with more than one database. 

Saudi Arabia Phone Number  business  database free download

The business logic layer is defined as a dependent layer on the persistence layer. In the theory of things, this dependency blocks you from testing your process without the databases.

Additionally, the layered structure does not accurately reflect the dependencies of the well-designed application. Business logic usually defines an interface or repository of inter-faces which define the methods of accessing data. The persistence layer defines DAO classes which implement interfaces for repository. In other words, dependencies are in contrast to the layering architecture. Saudi Arabia Phone Number   database

Let’s consider alternative designs that can overcome these disadvantages: the hex-agonal design. Saudi Arabia Phone Number  database for sale

A BIT ABOUT HEXAGONAL ARCHITECTURE STYLE

Hexagonal architecture can be a viable alternative to the architectural style that is layered. As the figure 2.2 illustrates the hexagonal design organizes the logical views in a manner that puts the business logic in the heart of. Instead of the presentation layer the application is comprised of one or more adapters inbound that manage requests from outside by calling its business logic. Also, in lieu of a data persistence layer The application is equipped with one or more adapters outbound which are invoked by business logic and also invoke external applications. The main benefit of this design is that the logic of business does not depend on adapters. Instead, they rely on it.

Saudi Arabia Phone Number  lists

The business logic is comprised of several ports. A port is a list of operations , and it’s what the logic of business interfaces with the outside world. In Java as an example the term “port” is typically described as a Java interface. There are two types of ports: outbound as well as outbound ports. Inbound ports are an API exposed by business logic that allows it to be accessed by other applications. A good illustration of an interface that is inbound would be the service that defines the public methods. Outbound ports define how the business logic calls external systems. One example of an output port would be a repository interface which is a collection of operations for accessing data. buy Saudi Arabia Phone Number  database for marketing

The business logic is surrounded by adapters. Like ports there are two kinds of adapters: outbound and outbound. Inbound adapters handle requests from outside through the use of the inbound port. One illustration of an adapter that is inbound would be an example of a Spring MVC Controller that implements either an array of REST endpoints or the set of Web pages. Another instance is a client for a message broker that is subscribed to messages. Multiple adapters inbound can be invoked on the same port inbound.

Outbound adapters implement an outbound port that handles requests made by the business logic through invoking an external service or application. One example of an outbound adapter is an object for data access (DAO) class which performs the operations required to access a database. Another example is proxy classes that run the remote service. Outbound adapters may also be able to release events.

The main benefit of the hexagonal style is that it dissociates all business-related logic and data access and presentation logic within the adapters. The business logic isn’t dependent on the presentation logic nor the information access logic.  Saudi Arabia Phone Number   database

Saudi Arabia Phone Number  business  database free download

As a result of this decoupling it’s simpler to test business logic independently. Another advantage is that it more precisely represents the structure of modern applications. The business logic is executed by multiple adapters that each implements an API or user interface. Business logic may also be invoked by several adapters at once, every that invokes an external system. Hexagonal architecture is a fantastic way to define the structure of every service within the microservices model.

The hexagonal and layered structures are two instances of styles in architecture. Both define the basic elements of an architectural structure and places restrictions on the relationship between them. The hexagonal structure and the layered architecture with the shape of three-tier architecture, are the best way to organize the logical perspective. Let’s define the Microservice Architecture as an architecture style which organizes the view of imple-mentation.

Microservice architecture is an architectural style.

I’ve talked about the 4+1 perspective model as well as architectural styles, and I’m now able to define the mono-lithic and microservice architectural styles. Both are architectural styles. The architectural design style Monolithic Architecture encapsulates the view of implementation as a sin-gle component, one executable, (or WAR) file. The definition doesn’t mention the different views. Monolithic applications can be, for instance, having an logical view which is organized according to the principles of a hexagonal structure. Saudi Arabia Phone Number   database free download

Pattern Monolithic Architecture

Structure the application as a single executable/deployable component

The microservice architecture is an architecture style. It organizes the imple-mentation view as a set of many components: executables , or WAR files. The components are services and the connectors are communications protocols that allow these services to work together. Each service is a unique logical view structure, which is usually one of hexagonal design. Figure 2.3 depicts the possible microservice architecture of an FTGO application. The services that are part of this model correspond to functional capabilities in business, like Management of orders and Restaurants. Saudi Arabia Phone Number   database

Pattern: Microservice architecture Saudi Arabia Phone Number  database for sale

The application should be structured as a set of loosely connected, independently deployable, and independent deployable components. See 

Saudi Arabia Phone Number

In this chapter, I will explain what I mean by the term “business capability . Connectors between services are created by using interprocess communication methods such as REST APIs , and Asynchronous Messaging. Chapter 3 discusses interprocess communication in more detail.

One of the main constraints of the microservice structure is the fact that services are not tightly connected. Therefore, there are limitations regarding how the services interact. To understand those limitations, I’ll try to define the term”service” explain what it means to be loosely coupled and explain why this is crucial. buy Saudi Arabia Phone Number  database for marketing

What is a Service?

The term “service” refers to a stand-alone software component that is independently deployable that provides a useful function. Figure 2.4 shows the outside view of a service that in this instance will be an Order Service. An API is a service that allows its customers access to its capabilities. There are two kinds of operations: queries and commands. The API comprises commands, queries and events. A command, like createOrder() is a per-form that performs actions and changes data. A query, such as findOrderById(), retrieves data. The ser-vice can also broadcast events, like OrderCreated that are accessed by its customers. Saudi Arabia Phone Number   database free download

The service’s API provides its internal implementation. Contrary to monoliths development environment, developers aren’t able create code that evades the API. This is why microservice architecture enforces the modularity of the application. Saudi Arabia Phone Number   database

Each service within microservice architectures has its own structure and, in some cases, a technology stack. However, a typical service is an hexagonal structure. Its API is implemented using adapters that communicate with the business logic of the service. The operations adapter calls the logic of the business, while the events adapter releases events generated through the logic of business.

In chapter 12, where I talk about deployment technologies You’ll discover that the view of implementation for the service may take various shapes. It could be a standalone program that runs on a web platform, an OSGI bundle running inside the form of a container, or even a cloud service that is serverless. The most important condition is that the service uses an API that is independent accessible.

What is LOSE COUPLING?

An important characteristic of the microservice architecture is that the services are loosely coupled (https://en.wikipedia.org/wiki/Loose_coupling). Every interaction with a service occurs through its API that encapsulates the details of its implementation. This allows the operation of services to alter without impacting the clients of the service. Services that are loosely coupled are essential to improving the characteristics of development time, such as its maintenanceability and testability. They are easier to understand, modify and test. Saudi Arabia Phone Number   database free download

The requirement that services be in loose communication and cooperate only through APIs restricts the ability of services to communicate through a database. The service’s persistent data the same way as elements of the class and make them confidential. The data’s privacy allows developers to modify the schema of their database without the need of co-coordinating with developers who are who are working on different services. Sharing data-base tables enhances the isolation of runtime. It also ensures, for instance that a service doesn’t keep database locks that hinder other services. In the future you’ll realize that one disadvantage of having databases shared is it can cause consistency in data and the ability to query between services can be more complicated. Saudi Arabia Phone Number   database

The Role of Shared Libraries

Developers typically package functionality into the form of a library (module) in order that it can be used by different applications without having to write new code. In the end, where would we be today if not for Maven or NPM repositories? It is possible to utilize shared libraries within microservice architecture. It seems as a great option to reduce the amount of code duplicated within your service. However, you must ensure that you don’t introduce the coupling between your services. Saudi Arabia Phone Number  database for sale

Saudi Arabia Phone Number   listing

Imagine, for instance that multiple services have to modify the business object Order. One option is to bundle this functionality in a library which is utilized by several services. One thing is that using a library will eliminate the need for code duplication. However think about what happens if the requirements change in a manner that impacts the Order business object. It’s necessary to rebuild and redeploy the services. The better option is to create functions that are likely to evolve, such as order management, which is an option in a service. buy Saudi Arabia Phone Number  targeted  list

Try to make use of libraries to provide functions that are likely to stay the same. For instance in the typical application, it’s not sensible for any service to use a generic money class. Instead, you need to make a library utilized by the service. Saudi Arabia Phone Number   database free download

The size of a service is largely irrelevant.

One issue with the term microservice is that it is the first thing you’ll encounter is the word micro. This implies that a service is tiny. This is also the case for other terms based on size, such as nanoservice or miniservice. The truth is that size isn’t a metric that is useful. Saudi Arabia Phone Number   database

It is better to identify a well-designed and well-constructed service. It should be a solution that is capable of being developed by a smaller team that has a short lead time and without collaboration to other groups. In principle, a group could be responsible only for one service, and the service isn’t micro. If a service requires an enormous team or takes a lengthy time to be tested it’s likely to separate the team and the service. Also, if you have to constantly to alter a service because of changes in other services or making changes to other services, it’s an indication that it’s loosely connected. You may even have created an unidirectional monolith.

The microservice architecture conceives the application as a collection of smaller, loosely connected services. As a result, it improves the development time attributes–main-tainability, testability, deployability, and so on–and enables an organization to develop better software faster. Additionally, it increases an application’s scalability, though it’s not the primary objective. In order to create a microservice design for your application it is necessary to define the services involved and figure out the ways they interact. Let’s take a look at ways to accomplish this. Saudi Arabia Phone Number  b2b database

Definiting an application’s microservice architecture

What is the microservice architecture? Like any other software development endeavor beginning points are the requirements in writing as well as domain experts or perhaps an existing software. Much like the rest of software development, the process of defining an architecture is more of an art than a science. This article describes a simple three-step process, as illustrated in Figure 2.5 to define an application’s structure. It’s crucial to keep in mind that it’s not a procedure that you can follow in a mechanical manner. It’s likely that it will be iterative and will require lots of imagination. Saudi Arabia Phone Number   database

The application is created to handle requests, therefore the first step to define its architecture is to deconstruct the requirements of the application into most important requirements. However, instead of describing requests using specific IPC technologies, such as messaging or REST I will employ the more abstract concept that of system operations. System operations are the abstraction for a request which the application is required to deal with. It’s either a request, that updates the data or a query that retrieves information. The behaviour of each command is described using an abstraction of the domain model and is further derived from specifications. Sys-tems are operations that form the architectural scenarios that show how the services work together. Saudi Arabia Phone Number  address lists

Saudi Arabia Phone Number   leads

The next step in this process will be to identify the process of decomposition into services. There are many options to select from. One strategy, with its roots in the field of architecture for business, is establish services that correspond to the capabilities of business. Another option is to arrange the services in domain driven design subdomains. This results in services that are structured around business concepts , not technical terms.

The third step of defining the architecture of an application is to define each service’s API. To determine this you must assign every system operation you as identified in the previous step to an application. A service could execute an operation completely on its own. Or, it could require collaboration in conjunction with different services. In this case you must decide how the service collaborates with each other, which usually requires services to facilitate additional operations. It is also necessary to choose on which IPC methods I outline in chapter 3 is the best way to create the API for each service. buy Saudi Arabia Phone Number  targeted  list

There are a variety of obstacles that hinder decomposition. One of them is latency in networks. It could be that you discover that a certain decomposition will not work due to excessive round-trips between different services. Another issue with decomposition is that the synchronous communication between the services decreases their the availability of services. You may need to employ the concept of self-contained service which is which is described in chapter 3. The third challenge is the need to ensure the consistency of data across different services. It is common to need the sagas which are discussed in chapter 4. The fourth and last problem to be deconstructed is god-classes, that can be employed throughout the application. It is good to know that you can apply techniques from domain-driven design in order to remove god classes. Saudi Arabia Phone Number  b2b database

This section begins by describing how to determine the application’s operation. Following that we’ll discuss methods and guidelines to break down an application into different services and then look at the challenges to decomposition, and how to overcome these. Then, I’ll outline the steps to define each API of the service. Saudi Arabia Phone Number   database

Identifying system operation

The first step to define the architecture of an application is to determine the system’s operation. The initial step is to determine the requirements of the application, which includes user stories, and the related scenario for users (note that they are distinct in comparison to the architecture scenarios). The system’s functions are identified and defined by the two-step process that is illustrated in Figure 2.6. This process is inspired by the object-oriented design process covered in Craig Larman’s book Applying UML and Patterns (Prentice Hall, 2004) (see www.craiglarman.com/wiki/index.php?title=Book_Applying_UML_and_Patterns for details). The initial step creates an upper-level model of domain made up of the most important classes.
The domain model derives predominantly from the words of the user stories, while the sys-tem functions are derived mostly from verbs. You can also define the domain model with the technique known as Event Storming, which I will discuss in chapter 5. The behaviour of every system operation is explained by its impact on the domain object and their connections. System operations can create, update or remove domain objects as well as establish or alter relationships between them. Saudi Arabia Phone Number  b2b database

Let’s examine how to create an upper-level domain model. Then, I’ll describe the operation of the sys-tem in relation to what is known as the domain model.

EXPANDING A HIGH-LEVELDOMAIN MODEL

The initial step in creating the system’s operations is to draw the high-level domain model of the application. It is important to note that this model is more similar to the one that will eventually be put into place. The application will not even have any single domain model as the moment you learn every service is a distinct domain model. While it’s a massive reduction of the process, a high-level domain model is useful in this phase as it establishes the language for describing the operation of the system’s operations. Saudi Arabia Phone Number  address lists

Saudi Arabia Phone Number   Profile

Domain models are developed with standard methods, like studying the nouns used in stories and the scenarios, and then conversing with domain experts. Take, for instance,

Definition of System Operations buy Saudi Arabia Phone Number  targeted  list

After you’ve created the high-level domain model it’s time to define the kinds of requests that the application has to manage. The specifics that comprise the UI are not within what is covered in this article however, you can envision that in any scenario of a user the UI will send demands to the business logic behind that will fetch and update information. FTGO is mostly web-based so the majority of requests are HTTP-based. However, it is likely that some users make use of messaging. Instead of binding themselves to a particular protocol it’s more sensible to utilize the more abstract concept that a computer operation in order to define requests. Saudi Arabia Phone Number  b2c database

There are two kinds of system operation:

Commands – System operations that create data, update, or delete information Saudi Arabia Phone Number   database

Queries: System procedures that can read (query) data

In the end, these system actions are correlated with REST, RPC or messaging endpoints. However, in the moment, thinking of these operations in terms of abstraction is beneficial. Let’s begin by identifying certain commands.

The best way to begin recognizing system commands is to study the verbs used in the scenarios and stories of the users. For instance, take a look at in the Place Order story. It clearly suggests that the system should offer the Create Order process. Other stories in the series connect directly to the system’s commands.

Of the two queries, findAvailableRestaurants() is probably the most architecturally significant. It’s a complicated query that involves geosearch. The geosearch component of the query consists of finding all points–restaurants–that are near a location–the delivery address. It also filters out restaurants that are not open in the event that an order has to be made and then picked up. Additionally, the speed of service is important since the query is run anytime a user would like to make an order. Saudi Arabia Phone Number   database

High-level Domain Model as well as the system operations define what the application does. They are instrumental in defining the structure of the architecture of the application. The behavior of every system operation is described as a part in the framework of the domain model. Each system’s key operation represents an architecturally significant event that’s an element of the architectural description. Saudi Arabia Phone Number  b2c database

When the operations of the system have been identified The subsequent step would be to determine the services of the application. As we mentioned there’s no mechanical process that you must follow. There are different decomposition methods you can employ. Each approach tackles the issue from a different angle and utilizes their own terminology. However, with all approaches the final result is the same: an architecture comprised of services focused on business, not technical terms.

The definition of services is based on to the Decompose through business capabilities pattern

One method to create microservice architecture is to separate it into the business capability. A concept derived from business architecture modeling, a capability is something an organization does to create value. The capabilities of an individual business is contingent upon the type of business. For instance those capabilities for an insurance business typically include Underwriting claims control, Billing, Compliance, and the list goes on. An online shop’s capabilities comprise the management of orders, inventory management shipping, and so on. Saudi Arabia Phone Number  address lists
Pattern: Decompose based on business capabilities

Define services in relation to the capabilities of business.

Saudi Arabia Phone Number  business database

BUSINESS CAPABILITIES DETERMINE WHAT A ORGANIZATION IS ABLE TO DO

The capabilities of a business capture the nature of the business. They’re usually stable, in contrast to the way an organization manages the business it runs, and that can change with time, sometimes drastically. This is especially the case today as we see the growing technological advancements that automate a variety of business procedures. For instance it wasn’t too long ago when you could deposit the checks you had at your bank by giving them to an cashier. Then it became feasible to make checks deposit at an ATM. Nowadays, you can deposit checks with your mobile phone. As you can see, the deposit check capabilities have maintained its stability, but the way the process is carried out has changed dramatically. Saudi Arabia Phone Number  b2c database

Identifying Business Capabilities buy Saudi Arabia Phone Number  targeted  list

The capabilities of an organization can be identified through analyzing the business’s mission, structures, and business processes. Every business capability is viewed as an service unless it’s a technical rather than business-oriented. Its specifications comprise of a range of elements, such as inputs, outputs and service-level agreements. For instance the input to an insurance underwriting capacity is the application of the consumer, and the outputs are the approval process and price. Saudi Arabia Phone Number   database

The business capabilities are typically targeted at a specific business object. For instance it is Claim is the Claim company object can be described as the primary focus for an ability called the Claim managing capability. A capability can be broken down into sub-capabilities. For instance for example, the Claim management capability comes with a number of sub-capabilities, such as Claim Information Management, Claim Review, as well as Claim pay management. Saudi Arabia Phone Number  customers database

It’s not hard to imagine that the commercial capabilities of FTGO comprise the following:

Supplier management

– Courier management–Managing courier information

Information management for restaurants – Managing menus for restaurants and other details such as location and opening hours

Strategies for decomposition

Information management for consumers.

The process of taking orders and completing them Saudi Arabia Phone Number   database

– Order management – Allowing consumers to manage and create orders

Restaurant order management — managing the process of preparing orders in the restaurant. Saudi Arabia Phone Number  customers database

– Logistics

Management of Courier availability – Managing the availability of couriers in real-time to deliver orders

– Delivery management–Delivering orders to consumers

Accounting

Accounting for consumer accounts – Controlling consumer billing

Accounting for restaurants – Controlling the payment to restaurants

Paying for couriers couriers

…

The top capabilities include Management of the consumer, Suppliers order taking and fulfillment as well as Accounting. There could be other top-level capabilities, which include marketing-related capabilities. The majority of top-level capabilities are broken down into sub-capabilities. For example, order taking and fulfillment is broken down into 5 sub-capabilities. Saudi Arabia Phone Number   database providers

Saudi Arabia Phone Number  customers database

One intriguing aspect of this structure is the presence of three related capabilities to restaurants Information management for restaurants and Restaurant order management and Accounting for restaurants. They represent three distinct aspects of the restaurant’s operations.

We’ll then look at ways you can use your abilities of business in order to design the definition of services. purchase Saudi Arabia Phone Number   lists

From BUSINESS CAPABILITIES to SERVICES

After you’ve identified the company capabilities, you can then create the services for every ability or set of capabilities. Figure 2.8 illustrates the mapping from capabilities to services within services for the FTGO application. Certain capabilities at the top level such as the Accounting capability are mapped to service. In other instances sub-capabilities are linked to services. Saudi Arabia Phone Number  customers database

The decision about how high in hierarchy of capability to map to services because it’s a bit subjective. My reasoning for this specific mapping can be this:

I assigned the sub-capabilities for supplier management to two different services because Couriers and restaurants are different kinds of suppliers.
I assigned the Order taking and fulfillment capabilities to three separate services, each responsible for distinct phases in the procedure. I also combined the Courier availability Management and Delivery Management capabilities and assigned the three capabilities to a single service because they’re intertwined. Saudi Arabia Phone Number   database

I have mapped the Accounting feature to its own service due to the fact that the different kinds of accounting appear to be like they are.

In the future, it could be beneficial to segregate payments (of Restaurants and Couriers) and billing (of Consumers).

The main benefit of arranging processes around capability is, since they’re stable, the architecture is also relatively solid. The various components of the architecture might alter as the way of doing of the business evolves however the overall architecture remains the same.

However it’s crucial to remember that the features depicted in the figure 2.8 are only the initial attempt to define the structure. They will likely change as we gain more knowledge about the domain of application. Particularly, a crucial aspect of the architecture design process is examining how the services interact with each of the major architectural services. It is possible, for instance you discover that a specific decomposition is not efficient because of the high amount of interprocess communication. This means that you have to mix services. In contrast, a service could become more complex until it becomes necessary to separate it into several services. Furthermore in section 2.2.5 I will discuss several issues that could make you reconsider your choice. Saudi Arabia Phone Number  business database

Let’s examine another method of decomposing the application that is built on the concept of domain-driven design. Saudi Arabia Phone Number   database

Definition of services through the pattern Decompose by sub-domain

DDD as explained in the excellent book about Domain-driven design written by Eric Evans (Addison-Wesley Professional, 2003) is a strategy for creating complex software that are based on the creation of an object-oriented model for domains. Domain mode is a way of capturing the knowledge of a domain in a manner which can be used to resolve problems within the domain. It defines the terms that the team uses which is known as which is what DDD refers to as”the Ubiquitous Language. It is mirrored in the development and implementation for the app. DDD includes two fundamental concepts that are extremely helpful when using microservice architecture Subdomains and Bounded Contexts.