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
votes
1answer
206 views

Architectural problem for Activity communication in an Android app

I maintain an open source Flickr app Glimmr for Android. There is currently an architectural issue around pagination that I've been trying to solve for quite a while, and would appreciate ideas. ...
2
votes
2answers
569 views

How to build configurable forms?

I'm working on two separate projects now that are essentially just CMSs -- a bunch of forms for recording various bits of information. Each project is built to serve many clients, and each client ...
38
votes
7answers
4k views

How do I stop designing and start architecting this project as suggested by my lead? [closed]

I'm a junior developer (~3 years' exp.) and at my job we're in the process of architecting a new system. My lead developer will be the principal architect, however he's challenged me to try ...
5
votes
2answers
4k views

Decoupling Server and Client using REST API

I was thinking about how I can decouple a web-application completely into a server-side and a client-side component. I want to decouple the app to the extent that I can host both components on ...
4
votes
1answer
216 views

Which relationship is more natural?

Have a quick question on how to best structure something for my Java project: I'm a user. I can work at one or more places. At those workplaces, I have one or more roles. For each of these roles, I ...
1
vote
1answer
132 views

Good strategy to implement a listener processing tasks provided by the database

Let's assume this conceptual scenario: The database is constantly populated with "a ton" of tasks named PleaseSendAnEmail. A scheduler/listener in background is aimed to handle those tasks. Of ...
4
votes
2answers
222 views

Is it an acceptable practice to Get a property, that involve parsing binary, that might throw an exception?

I have a property that is loaded lazily, any time after the ctor is called. It is possible that the binary that my property relies on is invalid. If invalid I might have to throw an exception. ...
3
votes
1answer
77 views

How do I respond to incoming network messages in a way that achieves loose coupling?

I'm working on a client-server sort of protocol right now in Ruby. I've hit a snag where I'm not entirely sure how to proceed. Currently, I have a class, Remote that signifies a remote connection (for ...
1
vote
1answer
403 views

Should I really need to implement event sourcing is this case?

An example of use case when event sourcing is applicable here whose excerpt is: Say, something went wrong in your app and as a result, a user gets blocked for abuse but that user claims to not ...
4
votes
1answer
184 views

Organisation by business function vs technical function

I am designing a large application (a static code analyser) and I have a choice in how to organise the code into modules: One approach is by what I'd call by technical function. This is where you ...
15
votes
1answer
9k views

Why database as queue so bad? [closed]

I've just read this article, and I'm confused. Let's imagine 1 webapp and 1 distinct application acting as "worker", both sharing the same database. Oh, I said "sharing"..but what does the article ...
0
votes
3answers
169 views

SQL string field lengths in a db having about 6 different types of addresses, with about 20 markets and environments

I have been advocating lately that all string fields should be ntext / nvarchar(max) - we're using MS SQL Server. The objections seem to be either "it's not a good idea" (without any reason) or "that ...
0
votes
3answers
1k views

“Property Container” design-pattern in-depth definition

Could anybody, please, explain what is a Property Container or at least where can I get information about that pattern on the Internet? I've found that it exists as one of the Fundamental patterns in ...
3
votes
2answers
264 views

Is it a good idea to develop website that only has little access to DB? CRUD will be done by calling API provided by separate internal backend system

I'm going to start developing an application in near future. This application consists of : Back-end system. This system provides API to be used by client. This system connects to data store and ...
1
vote
1answer
360 views

How to develop custom functions on top of Ejabberd? [closed]

I'm developing a real time chat app. After searching around for a while, I found Ejabberd and Erlang is a good option. The question is the Ejabberd is not providing all the functions I need. I need ...
17
votes
4answers
2k views

How does persistence fit into a purely functional language?

How does the pattern of using command handlers to deal with persistence fit into a purely functional language, where we want to make IO-related code as thin as possible? When implementing ...
0
votes
1answer
1k views

How is MVC different from Layered

Based on this book , refering to pages 156 to 159 , it talks about the two different types of software architecture model : MVC & Layered . There are distributed system architecture patterns such ...
0
votes
3answers
385 views

Software architecture which allows for growth, real life situation [closed]

I know of Interfaces, Abstract classes that serve as Base class, I've been reading up on loose coupling, ... But I can't come up with a decent solution when a property of a class changes, and the new ...
0
votes
0answers
172 views

DRY on API specifcations?

When developing a new RESTful application, I generally: Define tests Define routes [ e.g.: RESTful CRUD; namespaced on /api/users ] Define models [ e.g.: "Users" ] Define forms [ e.g.: in ...
4
votes
3answers
424 views

My architecture has a problem with views that required information from different objects. How can I solve this?

I am building an architecture like this: These are my SW layers ______________ | | | Views | |______________| ______________ | | |Business Logic| |______________| ...
1
vote
1answer
77 views

How to organise intermodule integration in a modular project?

I'm currently writing my own PHP Framework (yes, another one) for studying purposes. I'll actually try to use it as my graduation dissertation. After two failed attempts, I've finally found a way to ...
1
vote
1answer
415 views

PHP OOP - Getters / setters vs. database storing

Problem I am trying to optimize the architecture of my web-application developed in PHP using the Symfony framework. I have an object "pool" that contains "swimmers". I need to display the number of ...
7
votes
2answers
466 views

Feedback on a Kanban Board for Solution Architectects [closed]

Before I get started I need to issue a pre-emptive apology: It is very likely that some of the terminology / vocabulary I use in this post is plain wrong there is also a good chance I have ...
4
votes
1answer
259 views

Designing storage service data structure for decoupled models sharing same data

Surely most of you remember the Norton Commander application where similar (sometimes the same) data is displayed in separate decoupled views. I'm building a web application that follows the same ...
0
votes
3answers
88 views

How to design routes for generalized/specialized resources

I hope I can explain what is troubling me. Example: I have an object basket with a list of fruit objects. So normally I would build my routes like this baskets/{basketId}/fruits/{fruitId). But fruit ...
3
votes
3answers
256 views

Iteratively improve software architecture & quality in an agile process?

Or to put it another way how to ensure that architecture or quality doesn't suffer, doing agile. Some of the understandings in handling architecture in agile are below(generally applies to testing as ...
2
votes
0answers
198 views

Validation and Authorisation in Domain Models and Carrying that through a Service Layer to MVC

With the current project I'm working on there's an architecture question being asked which feels like it might just be asking too much. System Basics: HTML/JS MVVM Asp.net MVC Web Services EF SQL ...
5
votes
3answers
4k views

Difference between an architecture and a framework [closed]

A terminology question appeared when I was comparing EJB 3 and Spring. Wikipedia says that Enterprise JavaBeans (EJB) is a managed, server-side component architecture for modular construction ...
5
votes
1answer
3k views

Should the views or front-end server call the RESTful API layer

I need to build a new web application and I am looking for advice on how to manage communication to my API layer. My goal is to have complete separation between the front-end and back-end code. Like ...
8
votes
6answers
990 views

Code ownership with multiple Scrum teams

If two Scrum teams use the same software component, who is responsible for providing a clear architectural vision of that component and maintain/develop this vision as the code base evolves? In Scrum ...
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 ...
0
votes
1answer
411 views

HTML markup vs programmatic JS

I've been thinking about the consequences of using programmatic JavaScript components versus HTML markup. For example I looked into the Enyo Framework, which has its power in composition. One can ...
4
votes
2answers
352 views

How to enrich a simple two endpoint SOAP application to become enterprise level?

Imagine you have some exchange of data between two endpoints (webservices or let's call URL). Data can travel in any way (Xml, Json, GET, POST) it doesn't matter. I've got the source code of the ...
2
votes
2answers
354 views

What is best software design in creating methods?

I had created a extension method which extended the string type in C#. // actually checks if the string is empty or null and then looks up the default // promotion code which is set in the backend ...
0
votes
1answer
213 views

I'm making a report generator, how should I run it?

So I've started a project to generate reports for our system. These are reports that we deliver to our end customers and they are so specialized that no existing system can generate them. This is not ...
1
vote
3answers
660 views

Should entities be accessible from all layers of an application? [closed]

I am googling this issue now for weeks, but cannot find a good discussion. It boils down to this: As POCO entities used in a dbContext are in fact a definition of the database, shouldn't they be ...
4
votes
2answers
2k views

“Clean Code”: How to organize named queries?

Few days ago I started to read Robert C. Martin "Clean Code" book and it encouraged me to look more detailed at my code. After I opened eclipse I saw this: ...
1
vote
1answer
142 views

Data Access Layer for application

I am working on a retail application where currently I'm using raw SQL like insert into some_table values (Textbox1.Text, Textbox2.Text, ...) and update some_table set some_column = value for ...
1
vote
4answers
1k views

Call the database every time, or create an object in memory, and if so, how and how often to update?

I'm creating an app in javascript/nodejs and using neo4j as database. Let's say I have an entity User in my database. It has a bunch of properties, like boxes_collected and places_visited, which keep ...
6
votes
2answers
1k views

What is Component Oriented Programming, and how is it different from OOP? [closed]

What exactly is Component Oriented Programming, and how is it different from Object Oriented Programming? Thanks
1
vote
1answer
63 views

Separate domain entity in small ones

I have the Customer entity, this entity has a huge list of attributes, so you are thinking in separate in small entities (for example: "basic info", "document", "declarations", etc). This approach ...
2
votes
4answers
2k 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 ...
6
votes
4answers
2k 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. As you know, Django app contains two main directories for front-end: /static - for ...
1
vote
3answers
283 views

Why should an “Order” object have a “Status” property?

I always see standard Order classes implemented with a "Status" property, but I don't feel comfortable with that. Isn't the status a property of the fulfillment process instead of the order itself? ...
0
votes
1answer
145 views

SOA: should I always consider it? [closed]

While I think how to direct the future development: Mini-introduction As a fixed rule, I start with SOA (and REST as protocol) then I work on the interfaces (and that interface is a customer of my ...
1
vote
1answer
426 views

Where does non-MVVM code belong in an MVVM app?

By non-MVVM code, I mean things like highly generalized components, like one with common extension methods for CLR types, and other 'homeless' helper classes etc? I have a Core project that most ...
1
vote
1answer
232 views

What did machine code for 4-bit architecture look like?

I don't know how a 4-bit instruction could be enough to do something so I read about the Intel 4004 and it says that it used 8-bit instructions and then I can understand how opcode and numbers has ...
0
votes
0answers
387 views

How to integrate unit testing process into legacy software development process? [duplicate]

I'd like you to share your insights of how have you successfully turned the direction of rotting legacy code base to modular application design where it's easy and useful to add unit tests? What I'm ...
5
votes
2answers
411 views

How to Know When to Stop Designing? [duplicate]

First some backgrounds, I'm interning at a company that makes parallel processing hardware. We're currently working out the design for a component of our driver that is supposed to evolve over a few ...
23
votes
10answers
10k views

Best practice or design patterns for retrieval of data for reporting and dashboards in a domain-rich application

First, I want to say this seems to be a neglected question/area, so if this question needs improvement, help me make this a great question that can benefit others! I'm looking for advice and help from ...