The high-level design and description of a software system. Architectural design distills away details of implementations, algorithms, and data representation to concentrate on the interaction of "black box" components.

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6
votes
3answers
580 views

How to pick sequential item IDs and avoiding a clash

Say for example I was running a popular image host and all my images have an ID which they can be accessed by. If I wanted this ID to be sequential and not random what would be the best way to make ...
7
votes
2answers
255 views

Object reading from file, violation of SRP?

I am writing a physics simulation program in C++. I am a novice in OOP and C++. In my program, several objects need to be initialized based on data from an input file. For example, an imaginary ...
2
votes
1answer
215 views

How to refactor services into API, repository and caching (.NET)?

I am working on a .NET project with, which started out as a prototype that now has to scale. We have the ASP.NET MVC stack with Entity Framework (code first). I would like to hear how to scale this ...
1
vote
3answers
239 views

CMS Design: Is multi-site a good idea?

I'm building a new CMS with Node.js, and I have a question. Would adding WordPress-like multi-site support to the system be a good idea? Or should I let the user handle it via a reverse proxy like ...
1
vote
0answers
41 views

Converting our B2B application to SaaS need architecture advice

We have developed a small ERP application and the architecture right now is a 1-1 deployment/codebase for each client. We are now trying to convert it to a SaaS solution and we have the following ...
0
votes
0answers
39 views

Code architecture for separate apps facilitating the same process

So I am at a cross roads with deciding on my integration strategy for a few of our business apps that play a role in a larger process. Being the only developer and never having to do this before leads ...
0
votes
0answers
69 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 ...
4
votes
1answer
218 views

Who communicates with the database in MVC/MVP?

I am building a small application and want to save my business objects to a database. I have my business objects and a model that acts as a container for my business objects and provides methods for ...
4
votes
1answer
147 views

How to build notification system in Azure

I have a system running in Azure that accepts messages via a REST endpoint. The customer has a certain number of devices that send some data for example temperature and we present this data in a web ...
0
votes
1answer
66 views

Architecture of approval process

I want to design an approval process for my work flow but I wonder if there is an architecrural pattern or desing pattern for this solution. For example an engineer will create a work. And program ...
1
vote
1answer
143 views

Pros and Cons of odd iframe 'architecture'

I'm in the process of experimenting with ways of breaking up a large (and growing project). Currently, we're working with a big Angular application with what will soon be a large number of components. ...
2
votes
1answer
67 views

Web server facilitating a TCP handshake between two native apps behind typical home firewalls

I currently have two parties set up: typical HTTP web server native app distributed to consumers (presumably behind typical home router/firewall configuration) The app is designed to work on ...
3
votes
2answers
285 views

Is it better to have one web app or multiple web apps

I am going to develop a server application to provide the functionality of a book keeping software in tomcat server. I can think of two ways to achieve this. Creating a single web application - ...
1
vote
2answers
70 views

How should an entity that abstracts an external service do its operations?

I'm creating a system using some DDD principles and I'm stuck with a problem. To give a bit more of context on what I'm trying to do, let me first describe what the system is about: The ideia is to ...
2
votes
1answer
135 views

Scaling websocket client connections (not server) to multiple servers

I wrote a Slack bot which must connect to Slack teams through websocket connections. Since the bot might be used by thousands of team, I will eventually need to distribute the teams across multiple ...
0
votes
1answer
62 views

Concurrent languages and non-concurrent dependencies [closed]

We had a bug caused by ruby workers (4 processes, 1 thread each) doing batching records using a legacy mongodb as the store. The race condition was around whether the batch was full or not; with one ...
1
vote
1answer
163 views

Function pointers vs. Derived classes

So I have a Signal class and a client class which manages a list of Signal objects. The class provides a bunch of interfaces, one of them is an update()-function. The update()-code is completely ...
1
vote
2answers
106 views

Repositories, Gateways, Models and Architecture Questions

I am working with a Laravel project and I am looking for a way to solve the issue of bloated models and cross referencing between them. I had started extracting higher level methods to a repository ...
0
votes
1answer
127 views

Do I require an external server for my new mobile app? Only minimal text content to change within my app every couple of weeks

I am about to submit my new app to the iOS App Store. It's very simple. The app generates a random motivational quote and displays it onscreen. I have a database of 500 quotes now, stored in a plist ...
3
votes
3answers
182 views

Multi-screen MVVM architecture/design - Should my “screen” ViewModels contain sub-ViewModels?

I'm getting beyond a simple MVVM program now, and I'd just like to sense check my current architecture and makes sure I'm going down the right path here. Everything is structured around screens, and ...
0
votes
0answers
53 views

Azure Active Directory

I am developing a suite of applications that will be hosted in Azure. Some apps will be for customer use (not public tho, i.e. invited/paid up customers) and some for internal employees. For ...
3
votes
2answers
172 views

Configuring a microservice landscape, should the view be monolithic or be attached to core services?

I'm migrating my monolithic web application to a microservice based one. I'm going to use Spring cloud and I've got a discovery service where all the rest of the services are registered. A simplified ...
-1
votes
3answers
157 views

.Net Project architecture and DB connection

I'm looking at a new project to be developed in .Net, and I'd like to do it the right way. I'd like to create a solution with 3 parts : a front- and a backoffice, both using a the third part as ...
0
votes
1answer
82 views

What is the responsibility of a class 'calling' other classes as workflow?

What if I have a class X that does the following: Read a file (within its own class). Parses the file by calling a Parse class Processing the parsed file by calling a Process class Outputting by ...
2
votes
1answer
144 views

Standard System that connects to any datasource without much/any source-specific code?

We are a small team doing work on a LoB system that needs to connect to varied systems such as ERPs and CRMs to extract business processes like invoices, customer info, production orders and the such, ...
1
vote
2answers
171 views

Is this an appropriate code structure, or is there a better one?

This is an iOS app but I will try to make it as general as possible because I think a wide audience could have good feedback. I have a application I am making for iOS. It has 4 main tabs in a tab bar ...
1
vote
0answers
93 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 ...
2
votes
1answer
207 views

Communicating with third party API

I am working on an App which basically communicate with a third party API, it has no back-end. The front-end will be a SPA. Here is the overall scenario: The external API needs current user's Id to ...
0
votes
0answers
53 views

Software Architecture: CQRS and port modeling

I have a PersonComponent, which an internal implementation is based on CQRS pattern. So which one is better way to model ports (and their interfaces): I'm not totally sure that how high or low ...
2
votes
2answers
223 views

Do common MVC frameworks violate the LSP and is there a MVC framework which does not?

You who have worked with a framework implementing the MVC architectural pattern most likely know how these frameworks are usually implemented. They contain a base Controller class, which you extend, ...
0
votes
0answers
28 views

Design solution for currentUser object behavior in the SDK

Background Our team working on the SDK to give third-parties access to our service. The basic functional is moving around the current logged-in user. Basically we have a User class with static ...
2
votes
1answer
113 views

ASP.NET MVC Middle tier object naming

As a corporate developer who works alone I find myself creating and writing a lot of websites that consist of screens that are basically wrappers for a DB table. So for instance on a screen that ...
2
votes
1answer
80 views

Where does apply authorization rules for my layered application?

This question is about applying rules of my application that confuse me. My controller is using service and the service is using repository. public class CommentController: ApiController{ ...
2
votes
1answer
89 views

DDD aggregate and component structure [closed]

What do you consider that is there relationship between DDD aggregate and architectural component? I think that it is quite reasoned that services, which are related to specific aggregate, defined a ...
1
vote
1answer
117 views

“Who” should handle side tasks for events?

I'm currently on the process of creating a website/webapp. My application is based on Node JS with the express framework. My core backend concept consists of routers: handle http request. Like ...
3
votes
1answer
155 views

Architecture: API with slightly different behavior depending on the logged-in user roles

How should I structure a piece of code that executes an operation, but may have slightly different behavior depending on, let's say, user roles? Example: My app has a 'manager' and a 'employee' ...
3
votes
3answers
373 views

REST API vs directly DB calls in Desktop Application

I am currently planing an application that will be used in a company. It is required to build a Desktop Application. At the moment they are not sure if the application should be available on mobile or ...
2
votes
2answers
95 views

Design pattern for abstracting interaction between multiple resources

So far I've been building applications abstracting data entity operations behind the use of Repositories. Each of them would encapsulate the domain that corresponds to their defined entity. For ...
29
votes
5answers
5k views

If a number is too big does it spill over to the next memory location?

I've been reviewing C programming and there are just a couple things bothering me. Let's take this code for example: int myArray[5] = {1, 2, 2147483648, 4, 5}; int* ptr = myArray; int i; for(i=0; ...
5
votes
1answer
164 views

Architecture for Web application to monitor remote servers

So I'm a relatively new programmer, attempting to create a web application (ASP.net) to display the system information (E.G. Status of windows services, disk & resource usage and errors in event ...
3
votes
3answers
137 views

How do you test a selenium framework?

I have a very large selenium test framework I use to test a web application. It it built around a page-object pattern. This week I fixed a bug in a low level piece of the framework, but it broke many ...
4
votes
1answer
84 views

How does an product order payment works during a race condition?

This is a pretty generalized question which I am asking. Scenario 1 I have a product 'Pen' which has a quantity of 1. Now 2 users a and b has come to buy the product.User 'a' clicked on buy now and ...
1
vote
1answer
80 views

Personal pages domains architecture

We're looking to add personal pages generator for our users, which is simple enough while all of them are on our domain. We also want to enable them to purchase their own domains through us, and serve ...
0
votes
0answers
125 views

How to properly index MongoDB with ElasticSearch?

we are working on a JAVA EE project which handles huge amount of data, but has to provide full-text-search option (in hungarian language). So we started to think about what kind of architecture could ...
2
votes
2answers
108 views

Managing widgets in a simple GUI framework

So, I'm still working on my small GUI "library". (C++ with boost) The goal is to provide a simple solution for small SPI displays, using a Raspberry or some embedded board. Thus, I ended up having a ...
0
votes
0answers
19 views

Joins between datasets in data models

I'm struggling to understand how to join data between data domains in application properly. Say, I have three domains, User, Post and Like: User - id - login - password - active - ... Post - id - ...
4
votes
1answer
101 views

Mobile app architecture to improve speed and reduce data transfer

Business Context of the Problem Our iphone app allows users to pay merchants and earn rewards. Users can also do things like: View transaction history View their points and available rewards, or ...
3
votes
2answers
240 views

Multi tenancy or multi instance?

I'm trying to build a web-based SaaS solution, and I hit a road where I'm not sure to use multi tenancy or multi instance. I will try to describe what I'm trying to achieve, and each approach ...
4
votes
2answers
251 views

Methods of separating front and back-end with full stack javascript?

Suppose I have a front-end which is mostly a single-page application written using angular, grunt, and bower. And suppose I have a backend, which is mostly just a REST API sitting on top of an ORM, ...
1
vote
1answer
132 views

Fork Management of Git Multi-level Hierarchies

We have the following Git hierarchy structure in place, where each child is forked from the parent. If we build something in Client1 that will be useful in the entire hierarchy, what is the best way ...