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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2answers
413 views

Questions about identifying the components in MVC

I'm currently developing an client-server application in node.js, Express, mustache and MySQL. However, I believe this question should be mostly language and framework agnostic. This is the first ...
0
votes
3answers
396 views

Reuse the data CRUD methods in data access layer, but they are updated too quickly

I agree that we should put CRUD methods in a data access layer, However, in my current project I have some issues. It is a legacy system, and there are quite a lot CRUD methods in some concrete ...
11
votes
6answers
1k views

How to Be a Software Engineer? [duplicate]

My problem is kind of weird so please bear with me. I have been working in a start up concerned basically with mobile development since my graduation 2 years ago. I develop apps for iOS but it's not ...
2
votes
1answer
379 views

Service Layer - how broad should it be, and should it also be used from the local application?

The background: I need to build a desktop application with some operations (CRUD and more) (=winforms), I need to make another application which will re-use some of the functions of the main ...
6
votes
3answers
487 views

Resources for popular domain models [closed]

I have come across many situations where I had to build a system for a library or a clinic or other popular domains. The thing is a domain model for a library was probably done 1000 times already with ...
2
votes
7answers
991 views

OO Software Architecture - base class that everything inherits from. Bad/good idea?

I am reviewing a proposed OO software architecture that looks like this: Base Foo Something Bar SomethingElse Where Base is a static class. My immediate thought was that every object in any ...
0
votes
1answer
348 views

java application architecture

We have to write an administration panel for many customers. But we want to have just one administration panel, and use it in various projects. This admin panel will have basic components such as ...
54
votes
12answers
3k views

Getting out of my head

I've spent the last year as a one-man team developing a rich-client application (35,000+ LoC, for what it's worth). It's currently stable and in production. However, I know that my skills were rusty ...
2
votes
5answers
481 views

software architecture (OO design) refresher course [closed]

I am lead developer and team lead in a small RAD team. Deadlines are tight and we have to release often, which we do, and this is what keep the business happy. While we (the development team) are ...
1
vote
2answers
316 views

Suggestions needed on an architecture for a multiple clients and customisable web application

Our product is a web based course managemant system. We have 10+ clients and in future we may get more clients. (Asp.net,SQL Server) Currently if one of our customers need extra functionality or ...
6
votes
3answers
3k views

How do I break down and plan a personal programming project? [closed]

I've just started a programming job where I'm applying my 'How to code' knowledge to what I'm being taught of 'How to Program' (They are different!). As part of this, I've been taught how to capture ...
6
votes
7answers
433 views

Is there such thing like a “refactoring/maintainability group” role in software companies?

So, I work in a company that does embedded software development, other groups focus in the core development of different products' software and my department (which is in another geographical ...
0
votes
2answers
526 views

Distributed Transaction Framework across webservices

I am designing a new system that has one central web service and several site web services which are spread across the country and some overseas. It has some data that must be identical on all sites. ...
6
votes
2answers
442 views

DDD / Layers and legacy systems

I have to refactor a complex C# app (many dialogs, mixed logic and so on). There is a part managing the communication with special hardware equipments (sending commands and receive data via ...
1
vote
4answers
345 views

When should code favour optimization over readability and ease-of-use?

I am in the process of designing a small library, where one of my design goals is that the API should be as close to the domain language as possible. While working on the design, I've noticed that ...
1
vote
1answer
58 views

admin-over-clients application

I have the same web application running on several different servers. Now I want a central place to administer everything in one web interface. What is the best way to do this? Should I provide a ...
3
votes
2answers
528 views

Is it possible to migrate struts/spring based application to GWT?

I am using the combination of spring, spring-security, struts and iBatis in my application. Now I am looking to migrate the struts UI to GWT. The new combination must be spring, spring-security, GWT ...
5
votes
3answers
516 views

CTO has left — codebase is a huge kludge, any advice on how to manage/handle/damage control? [closed]

I began work at a company 2 months ago as a PHP developer. I stepped in to somewhat of a kludge, but I've yet to find a company that isn't... The development stable is currently two developers ...
35
votes
6answers
16k views

How essential is it to make a service layer?

I started building an app in 3 layers (DAL, BL, UI) [it mainly handles CRM, some sales reports and inventory]. A colleague told me that I must move to service layer pattern, that developers came to ...
0
votes
1answer
85 views

Why are there proxy processes between clients and logic processes in C/S application?

In real world networking software following c/s model, there are always proxy server processes between clients and server processes dealing with business logic, why we need proxy to isolate the logic ...
5
votes
4answers
585 views

What is a suitable replacement for an Access 2003 database required to run an older PC?

Many years ago, I wrote a small Access 2003 database for a non-profit to track the donations they received. They recently wrote me asking for some new features (I was shocked it was still in use, ...
4
votes
3answers
484 views

Advise on How To migrate a huge monolithic java application towards something service-oriented

I am confronted with the problem of migrating a huge monolithic java web application towards a more service oriented approach. The application has grown for years from what it was originally desinged ...
86
votes
17answers
23k views

Is it a good idea to design an architecture thinking that the User Interface classes can be replaced by a command line interface?

In Code Complete page 25, it's said that it's a good idea to be able to easily replace the regular user interface classes by a command line one. Knowing its advantages for testing, what about the ...
5
votes
4answers
1k views

Can a loosely typed language be considered true object oriented?

Can a loosely typed programming language like PHP be really considered object oriented? I mean, the methods don't have returning types and method parameters has no declared type either. Doesn't ...
2
votes
2answers
330 views

What kinds of visual content, tables or diagrams might I want to include in my Project Architecture Document?

Besides logical and physical architecture diagrams, comps / mockups and tables for expected network load between components and various data schemas, what kinds of visual content, tables or diagrams ...
3
votes
3answers
2k views

How to use the unit of work and repository patterns in a service oriented enviroment

I've created an application framework using the unit of work and repository patterns for it's data layer. Data consumer layers such as presentation depend on the data layer design. For example a CRUD ...
70
votes
9answers
29k views

Don't Use “Static” in C#?

I submitted an application I wrote to some other architects for code review. One of them almost immediately wrote me back and said "Don't use "static". You can't write automated tests with static ...
1
vote
1answer
139 views

Side-by-side Configuration on Linux/ELF

One of the best/worst Microsoft software innovations (great for compatibility; terrible for efficiency) has been Windows' Side by Side Configuration. This allows, among other things, for different ...
24
votes
9answers
3k views

How do you organize highly customized software?

I'm working on a large software project which is highly customized for various customers arround the world. This means that we have maybe 80% code which is common between the various customers, but ...
4
votes
1answer
4k views

WPF, MVVM, EF, POCO guidance required on simple architecture

(sorry for my poor english) I am developing a application using WPF, EF Code First using MVVM (Caliburn.Micro). It should be used mostly to CRUD work. I created a BaseViewModel<T> class from ...
3
votes
2answers
206 views

How long does one have to wait to consider design change in code?

I had a few days ago. I was having trouble with threads. Had lots of questions asked on StackOverflow and honestly for the first time I did not get the answer I was looking for. Finally, I decided to ...
2
votes
1answer
421 views

Python simulation-scripts architecture

Situation: I've some scripts that simulate user-activity on desktop. Therefore I've defined a few cases (workflows) and implemented them in Python. I've also written some classes for interacting with ...
5
votes
3answers
385 views

When, how and why should one upgrade (Java) frameworks?

Short summary as introduction: We are a small Java web development team, creating applications using various frameworks and libraries like JSF, Hibernate, Seam, all together deployed in JBoss AS. ...
0
votes
6answers
3k views

When to use the 3 layers model?

I was recently exposed to the three layer model (DAL,BL,UI). Someone told me I should ALWAYS work with this model. I have a medium project that I'm starting and I have doubts whether I should build ...
3
votes
4answers
533 views

Public-private key pair handling on a Windows ecosystem

I've been thinking about how to architect an infrastructure for one of our business applications with the following requirement: Data written by some user can only be read by that user and his ...
4
votes
2answers
410 views

Domain Objects with Interfaces

I'm in a situation where part of my system has a dependency on another module in the same system, but the modules themselves need to remain independently deployable, where the parts they depend on ...
5
votes
1answer
600 views

Pros and cons of intrusive and non-intrusive serialization?

I am interesting in the pros and cons of serialization: intrusive and non-intrusive. On the one hand it seems non-intrusive is easy to use - class to be serialized should not be updated. It seems ...
1
vote
2answers
242 views

Good principles to explain the use of data objects

I'm in a little need of names clarification. First a brief description of my position. I prepare as debutant giving a junior developer job descriptions, which also provided another perspective on how ...
2
votes
5answers
434 views

What are good practices to perform software based optimization?

On a project that I am working on we encountered some performance problems. We decided to drop hibernate in favor of plain Jdbc to gain database performance. By converting our code to Jdbc we ...
1
vote
1answer
319 views

Auto update for application hosted on multiple servers on cloud

I'm working on an application which will run on multiple Amazon EC2 instances. I wish to incorporate auto update feature for my application. The updater should update all the Ec2 instances. Also, ...
3
votes
1answer
262 views

General Architecture with Code Tables?

I've only worked at once place since graduating my CS degree. This is a pretty basic architecture question but i don't know any better since i've only worked at one place. Where i work we maintain a ...
0
votes
3answers
214 views

How to port this architecture to .net?

My team is currently locked into using a tool we dislike that takes the form of a Eclipse plugin and a .jar; the plugin gives us a button to quickly run a single file's code (via invoking the main ...
11
votes
4answers
1k views

Data architecture for event log metrics?

My service has a large ongoing number of user events, and we would like to do things like "count occurrence of event type T since date D." We are trying to make two basic decisions: What to store? ...
15
votes
11answers
2k views

Why all classes in .NET globally inherits from Object class?

Its very interesting for me which advantages gives "global root class" approach for framework. In simple words what reasons resulted the .NET framework was designed to have one root object class with ...
3
votes
4answers
909 views

PHP - Internal APIs/Libraries - What makes sense?

I've been having a discussion lately with some colleagues about the best way to approach a new project, and thought it'd be interesting to get some external thoughts thrown into the mix. Basically, ...
2
votes
2answers
622 views

Where should instantiated classes be stored?

I'm having a bit of a design dilemma here. I'm writing a library that consists of a bunch of template classes that are designed to be used as a base for creating content. For example: public class ...
1
vote
3answers
945 views

Lending epub files for limited time to users [closed]

I am looking for components to build a digital library who lends people epub (ebooks) for about a week. It's like a digital version of the offline old public library. Now I have found several flash ...
1
vote
1answer
361 views

Developing an analytics's system processing large amounts of data - where to start

Imagine you're writing some sort of Web Analytics system - you're recording raw page hits along with some extra things like tagging cookies etc and then producing stats such as Which pages got most ...
1
vote
1answer
334 views

Are separate business objects needed when persistent data can be stored in a usable format?

I have a system where data is stored in a persistent store and read by a server application. Some of this data is only ever seen by the server, but some of it is passed through unaltered to clients. ...
2
votes
2answers
283 views

ORM and component-based architecture

I have joined an ongoing project, where the team calls their architecture "component-based". The lowest level is one big database. The data access (via ORM) and business layers are combined in various ...