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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1answer
318 views

Front-end structure of large scale Django project

Few days ago, I started to work in new company. Before me, all front-end and backend code was written by one man (oh my...). As you know, Django app contains two main directories for front-end: ...
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0answers
13 views

Architecture for a messaging app

I want to build a messaging app and I'm struggling with architecture here. What I want to achieve: Rest API for registrations/login Chat server itself, i.e. app which will allow clients to connect ...
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3answers
40 views

How to maintain view-related information in MVVM and may I store this in the model?

I have an ongoing discussion with some colleagues on how to manage the views to our model. We've got a model which may be represented by many views. Let's say we've got some data that is stored in an ...
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2answers
51 views

Architecture for application-wide diagnostic-gathering tool?

My product owner wants us to report more information on the state of the product when a user contacts customer service through an in-app form. The form eventually results in an email being sent to a ...
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2answers
101 views

Is there anything inherently bad about mixing paradigms in an application?

I am currently in the process of writing a (custom) Minecraft server application in C#. I figured it's a good way to teach me a lot of important things like concurrency and especially memory ...
2
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3answers
786 views

Architecture strategies for a complex competition scoring system

Competition description: There are about 10 teams competing against each other over a 6-week period. Each team's total score (out of a 1000 total available points) is based on the total of its ...
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1answer
36 views

Creating system diagrams for a small app

I am learning system design (on my own) and still I am not clear on a few things. Assume there is a simple application with a front-end and a database for storing of the data. In the system ...
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0answers
49 views

High-level Software Architecture Patterns [on hold]

Based on Big Ball of Mud, where the Pipeline pattern is mentioned, I'd like to know what other high-level patterns/architectures are there (besides modular and layered architectures). I'm mainly ...
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0answers
36 views

Project Review / Validation / Guidance [on hold]

As part of my learning, i am planning a sample project based on my knowledge. Is there anyway to validate the project by means of architecture, design , coding etc also concurrency, logging, ...
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3answers
245 views

Rest API Architecture from Rest in Practice book

We maintain an API that as part of its purpose makes a call to an external API. This external API takes a few seconds to fulfil the request we make to it. With our current architecture the request is ...
9
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6answers
1k views

Why the most famous sites on the web are not all truly Single Page Applications? [closed]

I'm currently building a single-page-application using AngularJs. While I'm happy with this way of doing, I've noticed that huge and famous sites, like popular social networks for instance, always ...
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1answer
40 views

Queue of jobs in a different states and with different services around

I need to design a 'queue' of jobs (in a a very much UI oriented application) that can be run by a user and I need some other thoughts to pick optimal approach from ground up. My jobs can be in a ...
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2answers
460 views

Data transfer between “main” site and secured virtual subsite

I am currently working on a C# ASP.Net 3.5 website I wrote some years ago which consists of a "main" public site, and a sub-site which is our customer management application, using forms-based ...
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1answer
119 views

From a DDD perspective is a report generating service a domain service or an infrastructure service?

Let assume we have the following service whose responsibility is to generate Excel reports: class ExcelReportService{ public String generateReport(String fileFormatFilePath, ResultSet data){ ...
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1answer
94 views

Observing progress of a distributed system

For a distributed system, there is a requirement of observing the progress of smaller applications on distributed computers (runtime 5 - 20 minutes). There is a web fronted, which right now only ...
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1answer
119 views

How to design a scriptable communication emulator?

Requirement: We need a tool that simulates a hardware device that communicates via RS232 or TCP/IP to allow us to test our main application which will communicate with the device. Current flow: ...
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1answer
67 views

How to implement the use of NoSQL and RDBMS together [closed]

(I don't have hadoop experience so excuse me if this is irrelevant) I am building a search engine that would scrape a number of websites (not the whole internet) I am planning to write the website in ...
2
votes
1answer
96 views

What is a good design approach in .NET for performing a series of checks in background process?

I have a flight planning system in .NET/SQL Server which needs to perform several validation checks. This needs to work on both a windows and a web client. Currently the checks run synchronously but ...
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2answers
687 views

What techniques would you use for a next generation java web application? [closed]

I'm working at a site similar to Foursquare and Yelp, with approximately 100000 unique requests each week that generates content, growing steadily. We are currently using: Seam as Java web ...
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0answers
22 views

Integrate MS Dynamics AX with Play Framework

In my company we use MS Dynamics AX 2009. This is the ERP of the company. We have around 100 users. The servers of MS Dynamics AX are in the headquarters company. We are developping a new website ...
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0answers
36 views

What tecnologies can I use to implement a specialized social network? [closed]

I am a Java (Spring) and .NET developer and I know also (just a litle) PHP. I'm planning to start working on a personal project consisting of the development of something like a specialized social ...
-1
votes
1answer
127 views

What would you avoid re-inventing at all costs? [closed]

We recently had to re-invent a high-availability queueing engine like RabbitMQ (for various reasons). Naturally this turned out to be more time consuming and expensive than expected. What type of ...
0
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1answer
82 views

Ensuring non conflicting components in a modular system

So lets say we are creating a simple "modular system" framework. The bare bones might be the user management. But we want things like the Page Manager, the Blog, the Image Gallery to all be ...
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1answer
124 views

Onion Architecture Structure

I am looking to understand and implement the Onion Architecture and have a vague idea on how to structure everything but need help to clear up some of my confusion. Based on different examples and ...
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0answers
53 views

AngularJS directive architecture: Where to put parameters?

I'm using a charts-Plugin (Morris.js) in my AngularJS application. I'm building a directive for each type of chart. The plugin is called like this: new Morris.Line({ // ID of the element in which ...
2
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1answer
74 views

How to handle hidden folders on deployed website

Our security team at work did a security scan of our soon-to-be-deployed website and one of the items that was found was "Hidden Directory Detected". It shows up for 3 different folders, ...
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0answers
56 views

Designing module interfaces

I'm studying software engineering and one thing I'm really trying to improve is my skill in software architecture. My question is quite broad, so I'll try to explain it with an example. Suppose you ...
2
votes
3answers
1k views

When should a class or module be in a separate Assembly/DLL?

Are there any guidelines for deciding when a class should be in its own assembly/DLL? I often see two schools of thought: 1) Every "grouping" of classes belongs in its own DLL e.g. Repositories, ...
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3answers
418 views

Should I use different projects for building different layers in a 3-layer model?

I am creating a new project from scratch and have decided to use a 3-layer model. I am using: the 1st layer for business entities, the 2nd layer for business logic, and the 3rd layer for data logic ...
2
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1answer
88 views

Applications of Artificial Intelligence on regular business applications [closed]

This is a doubt I had for a really long time. I'm currently learning the basics of AI, mostly from Peter Norvig's book. I already know that you can use several AI techniques in Data Mining and ...
1
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1answer
138 views

What is a good practice to push notifications in a “near real-time” delay in this case?

I want to enable some real-time notifications about friend's activities (social network). Technical context is: Webapp calling backend (REST API's). Scenario is: Kevin follows Bob. When Bob ...
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1answer
67 views

What should be used to diagram an application's internal architecture?

I have an application that has several dependencies, including a Matlab library and a Microsoft Windows Media Player ActiveX control. How would I graphically depict the internal architecture of this ...
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0answers
44 views

Web Services of System Integration

I have been assigned to a system integration project. However, I do not understand part of the integration implementation architecture. For example, I have a passport scanner connected to a Windows ...
3
votes
1answer
123 views

Good way to handle the notification counter like Facebook does

I want to build a similar notification mechanism that Facebook handles. I actually store the user's notification in an SQL table (actually it's a graph database but everybody master RDBMS terms). ...
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1answer
58 views

Differentiating Standalone and Client-Server architectures

I was wondering what is the exact difference between a client-server and a standalone application, particularly in following scenario. For example lets say there is a win forms application running on ...
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1answer
49 views

Multiple intranet/internet systems partially working on same data - database strategy

We are starting rewritting our apps (Internet portal, millions of unique users and few CRM/ERP systems, few hundred users) and we have a huge decision to make now. We are going to write them mostly ...
1
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1answer
39 views

Modular Web App Network Architecture

Assuming that I am dealing with dedicated physical servers or VPSs, is it conceivable and does it make sense to have distinct servers setup with the following roles to host a web application? ...
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5answers
199 views

Coupling business logic with class definitions

Perhaps it is my scripting background, but my perspective is that the purpose of an object should be to contain data. Classes are necessary in that they provide templates and standard ways to classify ...
0
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1answer
178 views

MQTT, GWT, ActiveMQ stack to bring jms to the browser

I am in the preliminary stages of architecting a legacy replacement project. They already have sub half second performance on their green screens and they want the same on their web app. We have ...
0
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1answer
68 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 ...
0
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1answer
84 views

Multilayered enterprise application use of JAXB objects

I am asked to refactor and maintain an enterprise application. Normally I'm used to using the MVC design pattern. This time however, I'd like to separate everything into layers (multilayered ...
0
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2answers
549 views

iOS chat application design, sending/relaying the message over to the end user

I have a design question. Let us say you were tasked with building a chat application, specifically for iOS (iOS Chat Application). For simplicity let us say you can only chat with one person at a ...
0
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1answer
44 views

Which version management design methodology to be used in a Dependent System nodes?

This is my first question so please indicate if my question is too vague and not understandable. My question is more related to High Level Design. We have a system (specifically an ATCA Chassis) ...
3
votes
1answer
57 views

Pattern to use to relate multiple data sources to different user data widgets

I have an client x server intranet application the basically gets data from the server, format it and send that data to the client for display. At the server we are using ASP.NET C# running on IIS ...
2
votes
1answer
311 views

Write data to SQL Server directly from BizTalk or use external service?

An external source will be sending us XML data that BizTalk will pick up and transform into an internal schema. We need this data to be loaded into a SQL Server database as we're going to expose some ...
1
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2answers
130 views

Entirely separate business logic layer from MVC

We are currently refactoring our controller methods in ASP.NET MVC application. At the beginning we've separated data access layer (our goal was to remove LINQ from controllers entirely). Now we are ...
2
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2answers
775 views

Building a distributed system on Amazon Web Services

Would simply using AWS to build an application make this application a distributed system? For example if someone uses RDS for the database server, EC2 for the application itself and S3 for hosting ...
0
votes
1answer
50 views

Should I persist notification before or after publishing it through Redis pub/sub?

I'm implementing a mechanism to notify a group of users about newly inserted blog comments. The architecture uses the Redis Pub/Sub mechanism. By definition, the pub/sub mechanism aims to propagate ...
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0answers
48 views

Multitier architecture using API

I have been reading a number of posts and I am leaning towards building an SOA. My main dependencies are: Need to support multiple clients Need individual client environments to not effect other ...
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2answers
72 views

Model Driven Architecture Approach in programming / modelling

I know the basics of the model driven architecture: it is all about model the system which I want to create and create the core code afterwards. I used CORBA a while ago. First thing that I needed to ...