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

learn more… | top users | synonyms

1
vote
1answer
111 views

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 ...
0
votes
1answer
112 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 ...
2
votes
3answers
85 views

What should be primary guideline when defining a bounded context?

When defining bounded contexts of a Domain, what should be a primary guideline: departments (Sales/Manufacturing/Warehousing), where each department has a common context ...
3
votes
2answers
64 views

How do you address the problem of dealing with an external service that stores your data and you want to keep in sync?

I'm integrating an enterprise application with an existing pattern. The main problem is how to synchronize data between my system and an external system through RPC (HTTP API calls to be precise). ...
0
votes
0answers
30 views

What is the difference… no, relationship… between coupling and cohesion in OOP? [duplicate]

What is the relationship between coupling and cohesion in OOP? I am especially thinking of how these concepts apply specifically in a multi-tiered/multi-layered project. I find that my applications ...
1
vote
0answers
80 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 ...
1
vote
3answers
72 views

Alternatives on how to deal with data fetched from external API

We are planning to build a web application which will consume data from an internal REST API that centralizes all of our "core" business data. For matter of demonstration, let's say this API exposes ...
4
votes
3answers
1k views

Let applications share a database or keep them in sync with web services?

We have decided to build separate applications for user authentication and user management. The reason is that the the former is a "this just needs to always work, and do so instantly" style service, ...
0
votes
0answers
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 ...
3
votes
1answer
80 views

Simple messaging pattern to replace shared DB? [closed]

There are two modules A and B using the same DB. A imports B as a JAR. I read that messaging patterns can replace the tightly coupled solution of using a shared DB but I am not sure which message ...
9
votes
4answers
7k views

Why should large financial/insurance companies use git and/or github

I work for a large enterprise (30K employees) in the financial/insurance industry. While "IT" isn't our main focus, let's be honest, these are information driven industries and the companies with the ...
5
votes
2answers
179 views

DDD: Creating reusable modules and service type distinctions (Domain, Infrastructure, Application)

So after reading "Implementing Domain-Driven Design by Vaughn Vernon" I've decided to refactor my code for better re usability by isolating what I believe to be core domain concepts into separate ...
6
votes
1answer
99 views

Implementing a composite REST service

The past years I have had the need to implement business logic in a larger type of service, most often orchestrating a handful of atomic/microservices. Operations like "search and update document, ...
3
votes
1answer
59 views

How do you properly test a complete software replacement

We have System A (an application and a database) that is built for a specific business department and therefore has business aligned data model and table structure. System A is a mission critical ...
0
votes
0answers
30 views

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, ...
3
votes
1answer
175 views

What are modern develop-deploy-test techniques for non-interpreted languages?

I have strong web-developer background, where in order to show client a demo I've uploaded a solution to demo environment and sent over a link. If case client asked to make changes, I did them in ...
1
vote
2answers
155 views

Suggestions to distributed service pattern

We expose some webservices on a server, written in C#. Now we have to distribute the services to multiple servers, so the solution is distributed. And each request is dispatched to one the servers to ...
0
votes
0answers
74 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 ...
1
vote
2answers
95 views

Decoupling external dependencies

We have a simple REST webapp which is dependent on multiple external services, mostly Kafka messages. An attempt was made to isolate external dependencies by encapsulating all external interactions in ...
1
vote
0answers
118 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 ...
3
votes
2answers
308 views

Does DDD make sense for apps which mostly present data?

I'm responsible for designing a dashboard and data manipulation front-end for a sale transaction database and am not quite sure what type of architecture to use. The database is populated by an ...
2
votes
1answer
182 views

DDD: How to reconcile a BoundedContext with REST/WebService DTO's?

I'm just starting to learn about DDD, and I'm trying to understand how Bounded Contexts can be reconciled with client facing API's like REST/WebServices that use DTO's. For example: your system ...
0
votes
0answers
26 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 ...
5
votes
2answers
215 views

Best approach for managing users that are defined inside the active directory, inside my custom application

I want to start a new asp.net mvc5 Personal Appraisals web project. Now I will have a module inside the system for managing users, and adding info such as primary role, secondary role, main skills, ...
1
vote
1answer
152 views

How many Topics (queues) to practically use in an ESB

In all the Service Bus examples and tutorials I've seen, they cover publishing a single message to a single Topic that is picked up by a single listening Subscriber. Whilst this is good for a simple ...
0
votes
1answer
84 views

Is it advisable to create a single API to access the database? [closed]

Got an organization that its core work is acquiring various sources of data, validating it and integrating it to existing mostly financial data sets and then availing that data to many different types ...
2
votes
1answer
156 views

Enterprise Architecture: Where to put persistence/dbContext management? [closed]

I'm working on architecting a somewhat enterprise-level solution and have a question about how to best handle the persistence details. My overall setup is that there's a core set of business ...
2
votes
2answers
180 views

Building workflow driven applications [closed]

Quick primer: I am a happy developer on the Microsoft platform. Up to now I never had to design any applications which contained long running processes (with or without human interaction).In the past ...
0
votes
0answers
20 views

How to organize enterprise software in Git [duplicate]

I'm running into a conceptual design dilemma with our enterprise software. I'm hoping someone on here can help point me in the right direction. We have many different applications: Three Windows ...
4
votes
2answers
979 views

Benefits of using separate API and UI servers for Web application

At work, we have a large internal application which has been under development for close to 2 years now; I've just recently joined the project and some of the architecture has me slightly perplexed, ...
1
vote
3answers
306 views

How to authenticate against an API?

In a enterprise distributed system, a user of a web portal can sign into one site, be redirected to a federation provider. Once they log in with, for example, a facebook account, that user is ...
4
votes
1answer
563 views

Multi-platform design with Delphi, Java, MySQL and CouchDB [closed]

What are the most obvious drawbacks to this idea for an enterprise(ish) model using the following technologies. Browser based and native developed GUI using Delphi to connect to Datasnap server ...
1
vote
1answer
86 views

Using session managed application environment vs no protection

First of all sorry for the title, I didn't know how to explain it. So here comes the story; We are bunch of coders, front-end and back-end, and we are going to create this new system, based on ...
0
votes
0answers
123 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, ...
2
votes
3answers
157 views

Performing data operations that involve separate applications and data sources

I'm designing an enterprise application that produces output based on some input data from another application. In this case, I happen to have also built and thus do control the source application ...
2
votes
1answer
282 views

How to approach legacy code? Desperate case [duplicate]

I have a methodological question. I am faced with a reasonably large legacy system (Java Enterprise). I am new to its codebase -as everybody in the team- since it's a product we had in outsourcing ...
3
votes
1answer
315 views

Single source of truth within an enterprise distributed system

Within an enterprise distributed system I have many services - an ecommerce service, a CRM, support desk, finance, billing. Many of these services share common data, such as Customer data. These ...
1
vote
2answers
1k views

What is the best way to create DTOs from entities and update entities from DTOs in a layered architecture?

Option 1: At first I would make a call to my service layer, which served as an API for my core domain, to get a domain object or a list of domain objects and then pass them into the assembler which ...
1
vote
0answers
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 ...
1
vote
2answers
73 views

Responsibility of an ESB

When using an enterprise service bus, is it responsible for; a. the successful delivery of a message to a consuming application b. to successfully deliver a message until the application's ...
2
votes
2answers
295 views

Using ESB for database synchronisation / replication

We're starting to look at implementing an ESB / Microservices architecture. I (think) I know about the concepts, but there's one thing I don't seem to be able to get a good idea about: data ...
2
votes
4answers
380 views

How to optimize the application with huge number of database requests per minute

I have to provide free demo of some service to end users in my application. Free demo could be of 30 mins, 1 hours, 5 hours etc. (predefined time) for a new user for one time only. User can also ...
7
votes
3answers
732 views

Enterprise software: Where should the code go? [duplicate]

I recently went for an interview with a software company that claims to write enterprise level software. During the interview, the interviewer remarked that its better to use the database simply to ...
4
votes
3answers
566 views

Web Service and Message Queue

We're looking at creating a web services/REST API layer that will be consumed by web and mobile clients. To make the solution more robust I was considering putting the commands from PUT, POST, and ...
0
votes
2answers
235 views

Handling Business Logic/Validation Race Conditions

I'm working on a Training Enrollment web application with the following (simplified) features: Maintenance (Add, Edit, Deactivation) of Trainings Student sign-up Student enrollment to Active ...
1
vote
1answer
310 views

Service layer - fat service classes?

Let's say that I have a service for Job Offer entity in CRM app. Job offer is related to many many things, so there will be lot of methods on service layer to interact with above. What should be ...
1
vote
0answers
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 ...
3
votes
3answers
881 views

have we come full circle with microservices, back to very old school approaches?

In terms of software architecture and design, how do microservices "stack up" (pun intended) against middleware? I'm coming from Java, and it seems like as you move away from straight REST as an API, ...
1
vote
1answer
754 views

how to decide when to use database replication vs. custom REST applications vs. message brokers (pub / sub)

We have a distributed solution that's currently under design. There are a few points of integration where some application needs data from someone else and vice versa. We could solve by either ...
2
votes
3answers
231 views

Enterprise application object oriented modeling for user and role

Generally in the Enterprise Applications like ERP or ERM, CRM, BP etc. we see two things a lot, one of them is Role and the other one is User. What happens is that in the real world we have some ...