The high level design and description of software systems frequently characterized by having large quantities of persistent data that is accessed concurrently.

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What is the correct reusable architecture using Entity Framework for common database tables and services?

Context I have a line of business application "MyApp" in C# using EF. Layers are separated as MyResusableLib.DataAccess // Class Lib: EF based utils, extension methods, MyApp.DataAccess // Class ...
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73 views

NoSQL in Java Enterprise Application

I'm planning a large scale enterprise application that requires reliability and standardization comfort that Java EE provides. At the same time, I'm wondering if I go for Java EE, will I be able to ...
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171 views

How should a JEE application store credentials for logging in to an external system?

I am in a situation where I have a Web Application (WAR) that is accessing a REST service provided by another application. The REST service uses Basic HTTP Authentication. So that means the ...
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79 views

Sending large amount of messages async

The scenario is this: I have web based service that does regular request processing and it's doing persistence into db etc.. Fast response to the client is crucial. So now the average request is about ...
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116 views

Handling multiple rest api versions within Android Java client

Actual architecture I have an app where a model is attached to every activity. The model ask a repository for information that can come from server or local db depending on many factors. When it asks ...
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20 views

Standard API Protocol for ECM Systems?

I am wondering if there is an established standard or protocol when working with APIs for document management systems or ECMs. For example, let's say I'm working on a new product and I want it to have ...
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113 views

How is ORB distinct from an endpoint?

What, fundamentally, am I misunderstanding about how to use appclient? The Application Client Container (ACC) includes a set of Java classes, libraries, and other files that are required for ...
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179 views

Proper Architecture for DBContext and Migrations with Multiple Projects

I have multiple projects that will be using the same business objects (customer, order) but the projects operate in different databases within the organization and I would like to understand the ...
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33 views

DAOs - As a separate package or encapsulated in Service itself?

This question is to understand the pros & cons for keeping the DAO's with the service or as a separate package being consumed by the services. Consider a micro-service architecture. Let's say ...
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Appropriate Design for MDM Solution

Design Problem: A department aligned system (an application/UI and database, which we'll call System A) is used to manage both customer information and customer transactional data like orders, ...
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73 views

Rearchitecture: EF Core as DAL, how should my BLL look like?

A little background: Our system consists of a DB in SQL Server, a DAL layer using EF 6 (Database First, with a monstrous .edmx), a Web API 2 and MVC 5. The DB is very, very old and wasn't designed ...
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25 views

Good structure for customizable software/framework (JavaEE) with Maven

In a way this question touches similar issues like other before, for example this one: How to maintain different, customized versions of the same software for multiple clients It's a bit different ...
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122 views

Enterprise Mashups. A good approach for .net

I'm in the middle of trying to talk our management into letting us do a portal that sits across the many, many systems that we use. I believe in using the best tool for the job so we have a good ERP, ...
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141 views

does class reference itself static anti pattern in prism

I have an application and my desing approach look like this: class Manager { public int State; static Manager _instance = null; public static Manager Instance { get { return ...