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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3
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1answer
376 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). ...
1
vote
1answer
303 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 ...
0
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1answer
76 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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5answers
225 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
124 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 ...
1
vote
1answer
223 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 ...
3
votes
3answers
803 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 ...
0
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1answer
158 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 ...
0
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0answers
78 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 ...
2
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1answer
212 views

Use and manage Front End Assets for Web

I am a beginner and am currently developing a kind of cms using PHP. The number of libraries that we can potentially use in the front end is large. I have a question about properly selecting, ...
3
votes
4answers
741 views

Is this database design sound and fully normalised?

I'm creating a database to store words. The intended usage is to query the database to find a word matching a set of filters. E.g. if I wanted to find a word with < 10 letters, < 3 syllables, ...
1
vote
1answer
197 views

Architecture of large-scale API (User Management)

We are currently designing an API that will hide different services (Product, Content, User etc) that will be used by our own website, our own apps etc. It is not a public API. We are looking into ...
0
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2answers
1k views

How to structure REST api service that accepts POST parameters in the body

Everything I've read says to pass parameters to a REST service in the URI, whether by template, or query string: https://www.myapp/my/login/api/authenticate/ganders/mypassword or ...
3
votes
1answer
105 views

Architecture for maintaining/executing multiple versions of same strategy / functionality in live application

So I am working with a customer who has an older application that has quite a few interesting quirks. Among other things, it has its own code version system for business functions, by storing the ...
4
votes
1answer
69 views

Broadcasting - Listening to replies

We use JS by the way, but I think it's language agnostic. I'm open to ideas. We have this "pub-sub" framework that we use at work to fix the problem of tightly-coupled code. Works fine. Modules ...
3
votes
1answer
176 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 ...
0
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0answers
62 views

Building simulation architectures : Which one to choose?

I am writing a simulation which unites discrete event and continuous system simulation. For example, you can use State Charts, System Dynamics and Queues side by side. Theese will then reduced to ...
0
votes
1answer
151 views

Why is the “app” folder now a (more) common pattern in web projects?

It might be related to the Yeoman project, or they might have adopted this from somewhere else, but it seems to be the default for all of their generators. Aside from Yeoman generators I've also ...
0
votes
2answers
103 views

How about using a DTO class as a property in the corresponding BO class?

I was reading this blog post and liked the idea of using the DTO class for an entity and using it as a property in the corresponding business object class like so: public class Person : BALBase { ...
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0answers
118 views

Diagram to show code responsibility

Does anyone know how to visually diagram the ways in which the flow of control in code passes between code produced by different groups and how that affects the amount of code that needs to be ...
1
vote
2answers
73 views

Creating an Interface To a Language's Standard Library?

In the process of learning test-driven development, I've been introduced to dependency injection and the use of interfaces, and have started using these concepts in my own PHP code in order to make it ...
0
votes
2answers
91 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? ...
1
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2answers
92 views

How can you predict the time it will take for two processes in two different machines in a cluster to communicate?

I am trying to develop a computing application which needs a lot of memory (>500gb). Buying a single machine for that is overly expensive. I can, though, buy ~100 small instances on Digital Ocean or ...
1
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3answers
253 views

Software architecture for two similar classes which require different input parameters for the same method

I am writing Java code to simulate a supply chain. The supply chain can be simulated in either an intermediate stocking or a cross-docking configuration. So, I wrote two simulator objects ...
2
votes
2answers
181 views

Relationship between TDD and Software Architecture/Design

I'm new to TDD and have been reading the theory since applying it is more complicated than it sounds when you're learning by yourself. As far as I know, the objective is to write test cases for each ...
1
vote
1answer
72 views

Architecture driven by users, or by actions/content?

I have a question about designing MVC app architecture. Let's say our application has three main categories of views (items of type 1, items of type 2...). And we have three (or more in future) ...
1
vote
1answer
99 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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1answer
177 views

How do OSes work on multiple CPUs? [closed]

Assumption: "OS es (atleast in some part) should be written in assembly.Assembly programs are CPU specefic." If so how can one os run on different CPUs ? For example: how is that I can load Ubuntu on ...
0
votes
1answer
81 views

How are the conceptual pairs Abstract/Concrete, Generic/Specific, and Complex/Simple related to one another in software architecture?

(= 2 (+ 1 1)) take the above. The requirement of the '=' predicate is that its arguments be comparable. Any two structures are comparable in this case, and so the contract/requirement is pretty ...
9
votes
2answers
228 views

Using packages (gems, eggs, etc.) to create decoupled architectures

The main issue Seeing the good support most modern programming platforms have for package management (think gem, npm, pip, etc), does it make sense to design an application or system be composed of ...
7
votes
1answer
134 views

Restructuring a large Chrome Extension/WebApp

I have a very complex Chrome Extension that has gotten too large to maintain in its current format. I'd like to restructure it, but I'm 15 and this is the first webapp or extension of it's type I've ...
2
votes
2answers
102 views

Architecture for dashboard showing aggregated stats

I'd like to know what are common architectural pattern for the following problem. Web application A has information on sales, users, responsiveness score, etc. Some of this information are ...
0
votes
2answers
455 views

Designing a social network with CQRS, graph databases and relational databases in mind

I have done quite an amount of research on the topic so far, but i couldn't come up with a conclusion to make up my mind. I am designing a social network and during my research i stumbled upon graph ...
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vote
2answers
90 views

What's the most flexible way to ship changeable resources such as icons for an application?

We're currently upgrading some components of our application to new technologies such as C# using WPF and MVVM. Since we try to avoid past mistakes that have been made in our now legacy applications, ...
3
votes
3answers
266 views

If I unite many web apps into one, will I save resources?

I'm comparing 2 different approaches of J2EE application architecture: Divide independent parts as modules of one big web app. Divide independent parts as different web apps running on same server. ...
1
vote
1answer
249 views

How does a search functionality fit in DDD with CQRS?

In Vaughn Vernon's book Implementing domain driven design and the accompanying sample application I found that he implemented a CQRS approach to the iddd_collaboration bounded context. He presents ...
0
votes
2answers
388 views

Why don't we completely de-couple frontend JS frameworks and backend APIs? [closed]

Whenever we implement a frontend framework in the likes of Backbone, AngularJS etc. there's an integration process involved with the backend technologies like NodeJS, Rails, Yii etc. (like setting up ...
0
votes
2answers
115 views

Can a layer consist of multiple projects / dlls?

I am working on the architecture for a new web application and I am pretty much a complete newbie when it comes to architecture. Working my way through .NET Application Architecture Guide, 2nd Edition ...
0
votes
1answer
98 views

Javascript based application controller in Javascript-less environments

I just got done watching an informative Box tech talk by Nicholas Zakas on a javascript architecture for web development: https://www.youtube.com/watch?v=mKouqShWI4o&feature=youtu.be This image, ...
1
vote
0answers
138 views

Should I use SignalR to synchronize & cache CRUD data to a mobile app?

I'm considering using SignalR to send data to a mobile app, but need to have a way to synchronize data while it's closed or pending updates. Is it a good idea to use Backbone.js <--> SignalR to ...
0
votes
1answer
98 views

How to employ amatuer knowledge of software architecture and design in an agile manner? [closed]

I have a problem when designing any application that is either greenfield or a refactored brownfield due to often finding a potential flaw or an uncertainty with the design or architecture that I ...
5
votes
1answer
179 views

Strategies to manage multiple clients able to simultaneously edit same data

How can I deal with situations when multiple clients might edit same object at the same time? For example, I have a web app with admin console, which lets you edit profile data. Several users want to ...
3
votes
5answers
344 views

Why can't a server continue to act on a request after sending the response?

Say for example I've got a RESTful webservice, and I need to support creating a widget via a POSTed http request. I need to Deserialize the POSTed widget. Validate the deserialized widget. Persist ...
1
vote
1answer
221 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){ ...
0
votes
1answer
101 views

Unit-based architecture

This is probably a damn fool question, for which I apologise, but I can't seem to get the google syntax right to find an answer. Imagine a Property, like this: private int _type public int Type { ...
0
votes
1answer
91 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
votes
2answers
92 views

Diagram to express parallelism in a process workflow

I'm modelling part of a software architecture on which several processes run as a workflow. The architecture involves data parallelism, where a certain serial process produces N pieces of data which ...
0
votes
0answers
79 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
1answer
95 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) ...
-1
votes
3answers
180 views

Is there a metric that can be equated to complexity in laymens terms? [closed]

Often times users cannot comprehend the complexity of software. They think that because a problem is easy to describe then it is easy to solve. I want to equate the complexity of a "simple program" ...