Applications Architecture

There’s a typical notion of dependency relationship and it’s direction. if achitecture is about those large moving pieces that are hard to change, the framework, software design is about the patterns you use to achieve the goals of the software.

This architecture is particularly important because of the prevalence of Internet use. Building blocks are components of software, mostly reusable, which can be utilized to create certain functions. Patterns are a way of putting building blocks into context and describe how to use the building blocks to address one or multiple architectural concerns. The applications architecture is specified on the basis of business and functional requirements. This involves defining the interaction between application packages, databases, and middleware systems in terms of functional coverage.

How To Become A Software Architect?

It takes a professional to work with the software architecture to get it developed properly and safely. Even more difficult, by all accounts, is the maintenance of software architecture as programs application architecture examples and systems are built and retired. While avoiding the general lifecycle of applications and software isn’t possible, ensuring that the architecture remains strong is possible – and profitable.

Microservices are platform-agnostic — As we’ve mentioned, developers can create microservices using the most suitable programming language and data store. They can also be deployed across different environments and work on multiple platforms — so you won’t encounter a problem like Windows-specific APIs. That’s why developers pay close attention to orchestration requirements and automation right from the get-go.

Monolithic Architecture

In thin-client model, all the application processing and data management is carried by the server. The client is simply responsible for running the presentation software. An application service should be meaningful from the point of view of the environment; it should provide a unit of behavior that is, in itself, useful to its users. This means, for example, that if this environment includes business processes, application services should have business relevance. Application functions and other application behavior may be triggered or interrupted by an application event. Also, application behavior may raise events that trigger other application behavior. Unlike processes, functions, and interactions, an event is instantaneous; it does not have duration.

You may also use it in data-driven systems where the inclusion of data in the repository triggers an action or tool. Advantages Components can be independent–they do not need to know of the existence of other components. All data can be managed consistently (e.g., backups done at the same time) as it is all in one place. Disadvantages The repository is a single point of failure so problems in the repository affect the whole system. May be inefficiencies in organizing all communication through the repository.


Since the client holds most of the application logic, problems arise in controlling the software version and re-distributing new versions. The focus of this architecture is to make different components of the application independent, loosely coupled & easy to test. This pattern can be used to structure programs that can be decomposed into groups of subtasks, each of which is at a particular level of abstraction.

For both design and documentation, you usually need to present multiple views of the software architecture. Multi-tier architecture is a client–server architecture in which the functions such as presentation, application processing, and data management are physically separated. By separating an application into tiers, developers nearshore services obtain the option of changing or adding a specific layer, instead of reworking the entire application. It provides a model by which developers can create flexible and reusable applications. An application service may serve business processes, business functions, business interactions, or application functions.

Cloud Computing

The knowledge of HTML, JavaScript, and CSS, as well as Python, PHP, Java, Ruby, .NET, and Node.js are required to create them. From the following enterprise architecture, you will learn how to identify, optimize production resources, and decrease cost during the overall development process. At the final stage, some improvement costs or internal costs may be generated due to low productivity and waste of project packages.

application architecture examples

For example, a service for calculating tax for an ecommerce company might have the following components. IBM Cloud offers products and services to help you modernize your legacy three-tier applications on your journey to cloud. While three-tier architecture is easily the most widely-adopted multi-tier application architecture, there are others you might encounter in your work or your research. For decades three-tier application architecture examples architecture was the prevailing architecture for client-server applications. Today, most three-tier applications are targets for modernization, using cloud-native technologies such as containers and microservices, and for migration to the cloud. The use of NgModules for building offers manifold benefits through Angular development, including user experience with lazy loading, apart from reducing the code size.

JavaScript used with HTML and CSS is currently 1 of the more popular programming languages for web application development. Progressive web apps can be described as SPAs that introduce additional features, such as increased performance speed, push notifications, offline functionality, and home-screen installation. As you may have noticed, most of these features aim at improving web apps’ usability on mobile devices, and that’s exactly why we at ScienceSoft believe that PWAs are here to stay. Most likely, the ‘two+ database’ condition has left you wondering about the way data works in this model, and the truth is – it is yet another choice for you to make.

Web Application Architecture Components And Three

If this behavior is exposed externally, this is done through one or more services. Behavior in the Application Layer is described in a way that is very similar to Business Layer behavior. represents a point of access where application services are made available to a user, another application software development company component, or a node. An application programming interface is a set of programming calls that expose the functionality of an application to developers. APIs make it simpler to develop integrated applications by offering an easy way to pass credentials and data between applications.

Do architects use math?

Geometry, algebra, and trigonometry all play a crucial role in architectural design. Architects apply these math forms to plan their blueprints or initial sketch designs. Since ancient times, architects have used geometric principles to plan the shapes and spatial forms of buildings.

The service layer is another abstraction between Presentation and Business Logic. It’s an integration gateway that allows other software to access your business logic and resources without interacting with those resources directly. It works by passing messages through a separate interface and works like an API. The two main distinctions enterprise application architecture has from a regular web application is the addition of another layer to the classic pattern – the service layer. The design plan acts as a blueprint only during the development process, guiding specific tasks such as coding, integration, testing, and integrating.

The right applications pattern depends on the organization’s industry and use of the component applications. An organization could have a mix of multiple patterns if it has grown both organically and through acquisitions. Applications architecture defines how multiple applications are poised to work together. It cross platform apps development is different from software architecture, which deals with technical designs of how a system is built. An event driven architecture may be based on either a pub/sub model or an event stream model. In a layered architecture, the layers are arranged horizontally, so they are only able to call into a layer below.


As BL processes the request, it sends it to storage to locate the looked-for data. Web applications of different sizes and complexity levels all follow the same architectural principle, but details may differ. We will further explain how a basic request-response process works and what components comprise the architecture. We’ll cover the basic concepts of any modern web application and explain how the architecture patterns may differ depending on the application you’re building. When building a web application, there are three main principles to bear in mind. From a customer’s point of view, the application should be simple, aesthetically pleasing, and address most of their problems.

application architecture examples

Figure 6-3 shows the physical architecture of this approach, and Figure 6-4 shows how functionality is distributed across different elements of the system. In this architecture, the transaction server is separated from the merchant server, and there may or may not be a separate payment gateway depending on which payment methods are supported. In contrast to the monolithic approach, a microservices architecture involves smaller applications deployed independently as loosely coupled services, tied together through application integration. The first thing to watch out for is what is known as the architecture sinkhole anti-pattern. This anti-pattern describes the situation where requests flow through multiple layers of the architecture as simple pass-through processing with little or no logic performed within each layer. For example, assume the presentation layer responds to a request from the user to retrieve customer data. The presentation layer passes the request to the business layer, which simply passes the request to the persistence layer, which then makes a simple SQL call to the database layer to retrieve the customer data.

Software Architecture

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  • In other words, when one service fails, for whatever reason, other microservices will continue functioning without an issue.
  • The relational option might be the right one – but you should seriously look at other alternatives.
  • However, there are a couple of things to consider from an architecture standpoint when choosing this pattern.
  • Of course there’s a good reason for that – the book is about enterprise application architecture, that is how to design enterprise applications.
  • Moreover, using an elaborate, distributed architecture will slow down development.
  • Systems in the same domain often have similar architectures that reflect domain concepts.
  • Supports the incremental development of sub-systems in different layers.

In this refactoring essay I split a small program using Presentation-Domain-Data layering. I then refactor the dependencies between these modules to introduce the Service Locator and Dependency Injection patterns. These apply in different languages, yet look different, so I show these refactorings in both Java and a classless JavaScript style. This, hopefully, sheds some light on the backstage of building modern websites. In this article, we dipped our toes into the complicated subject of software engineering. If this wasn’t enough for you, feel free to roam around our blog a bit more and specifically explore the following articles.

For example, this can be used to model time schedules; e.g., an event that triggers a daily batch process. represents a unit of collective application behavior performed by two or more application components. An application interaction is the behavior of a collaboration of two or more application components. An application interaction is external behavior from the perspective of each of the participating components, but the behavior is internal application architecture examples to the collaboration as a whole. The Application Layer elements are typically used to model the Application Architecture that describes the structure, behavior, and interaction of the applications of the enterprise. Systems are a class of software that provide foundational services and automation. Control and ownership of their data — Monolithic systems don’t make it easy for organizations to integrate the data from their systems.

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