Author: Ravi Kiran Mallidi

Enterprise architecture (EA) is an organization's business function to help how the business and technology work together. In other words, it is a blueprint for structure and operations. The Organization determines the objectives to achieve an effective manner. Enterprise Architecture framework is a structural approach to deal with Organization enterprise business in the digital era. Enterprise architecture defines the borders of different departments in an organization. 

Below are some of the benefits of using Enterprise Architecture in an Organization

Most existing applications/projects are moving to Cloud platforms/On-premise using microservices architectures. Assessment of the existing application is critical concerning application complexity and risk. An appropriate strategy has to define to analyze the current application to determine the risk and complexity of the existing application landscape. The assessment considers factors like Overall Architecture, Presentation Layer, Business Layer, Data Layer, Security, Deployment, Technology, Infrastructure, Performance, and Monitoring for existing applications. Collect the information from the different parameters and decide which is the best option for Migration strategies like Rehost, Refactor, Rearchitect, and Rebuild. For each parameter, the architect fills in the information by studying the existing application/collecting the information from the application stack holders. Application assessment helps the Organization to understand the following:

• Understanding of the existing application architecture and critical findings.
• Integration points across applications (upstream and downstream).
• Infrastructure, Software usage
• Pain areas related to Business users.
• Road map to target system platform using any one of the migration strategies.

There are a number of assessment criteria that information will need to be gathered for to provide an assessment of the applications as below:

Nowadays, growing applications on-cloud, complex databases enterprises require data exchange between systems to be seamless without friction. Enterprise Integration connects critical systems and applications across on-premise and cloud platforms. There may be a need to integrate the systems from on-premise to cloud platforms to integrate the data. Some Enterprise Integration types are Application Integration, Data Integration, Process Integration, and Device Integration. Modern business applications are having problems while cloud integrations. Several vendors offer iPaaS (Integration Platform as a Service) and EiPaaS (Enterprise Integration Platform as a Service) solutions to address cloud integration solutions. 

iPaaS is a cloud platform that connects different systems and technologies developed in the cloud or on-premise. 

For the past few years, business systems have been generating large amounts of data and need tools to manage the data. One of the business requirements was to copy the primary data to secondary databases. Several popular tools are available in the market to replicate the data from master DB to secondary DB. This article will discuss various open-source tools for DB replication and stream-based replication for real-time.

Replication is the process of sharing/storing information in multiple places to ensure reliability, fault tolerance, and accessibility. The replication options are described as follows:

The purpose of this article is to be an overview of how the concerns of Authentication & SSO come together to plug into Authorization (mainly in the scope of API authorization). Application Architectures utilize industry standard protocols and patterns necessary to work together in all applications such as B2C, B2B, and B2E. The primary audience of this document is application architects and application security architects. However, those in the Identity and Access Management space will also find the concepts presented here apply to them.

Web Application and Mobile Thick Client Authentication Strategy

User Authentication and Authorization across web applications (both mobile and non-mobile) for all application realms (B2C, B2B, and B2E) should focus on SSO (Single-Sign-On). Web applications authenticate users using an Identity Provider that supports the standard like SAML2 and OAuth2. In addition, all mobile (Phone or Tablet) thick applications should authenticate their users by utilizing an Identity Provider that supports the industry standard OAuth2 Protocol.