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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2 views

What are the main components of a system and their relationships?

I have designed a management system for a medical practice and I am writing the design specification and I am kind of stumped by what to write. It says to include an overview of the architecture of ...
-1
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0answers
51 views

Class Composition: use property of the whole through a part [on hold]

Try to explain better. In my domain there is a Request and Process. For each Request I can have from 1 to many Process. A Request can contains some property that are common to each related Process. ...
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0answers
80 views

Help finding good design/architecture patterns for systems integration

There are several programs written at my company that to some level automatically configures systems. The systems that are configured by the programs can sometimes be the same but are most often not. ...
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1answer
140 views

How to make my code decide which class to instantiate based on a parameter?

I have a system in which I will perform queries to a database. I want Query1, Query2 and Query3 to use the same methods in their way to the data source layer. To do that I would like to make ...
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0answers
54 views

Masterless Service Discovery w/ Docker [on hold]

Why not use an existing solution/NIH syndrome issue? I'd be happy with an answer that perfectly fulfilled my design goals. To do so, it would have to be backed by Cassandra or Redis. [I use ...
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0answers
72 views

Are your code-first classes your domain classes? [on hold]

When using Entity Framework does anyone else make a distinction between their code-first data classes (used to generate their DB) and their domain classes? If you don't, how do you reconcile the ...
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1answer
79 views

Best practice for projects architecture - server side [on hold]

The usual way (that I'm familiar with) to divide the server side is the n-layer architecture : DAL - data access layer, usually has the Entities and the context (and maybe include also a repository) ...
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1answer
50 views

Implementing Rules-type logic without a rules engine (like Drools)?

I have a system that must output decisions and alerts based on input read from a messaging queue. This system will hold state about all objects in memory and update this state based on input from the ...
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1answer
167 views

The problem of dependencies management

Let's consider the next situation: We have a module A which has a class Crt570 intended to interact with a device. We have a module B which uses Crt570 in the class called M100Communicator. We have ...
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1answer
61 views

A specific problem with architecturing a part of our application

Firstly, I'll try to describe the real world model of what we are trying to express in C# code. We have a device called M100. It's purpose is to read\write data from\into cards (plastic or ULTRALIGHT ...
-2
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0answers
54 views

What are the benefits of decoupling the View from the Model? [duplicate]

I have recently learned about the MVC design pattern, and have created a small application implementing it. I've been thinking about the MVC concept and it's benefits, and currently I think that ...
2
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2answers
121 views
+100

Refactoring sought for replacing shared data types in .NET component

I am in charge with updating a software product that is made up of two components the Controller process and the UI process. The Controller and the UI communicate via XML messages. Furthermore, the ...
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30 views

One huge rails webapp or many small webapps?

We have a huge system to develop, it has 3 main functions: API provider Worker to automated data retrieval Management of data built in workers They all share the same DB, but for scalability ...
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0answers
38 views

Make a monolithic architecture in something modular

Currently my architecture is a monolithic block that handles a really specific duty. Now it needs to be generalized. Right now it handles a request and all processes (1 or many) associated to it. ...
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2answers
52 views

Client/server model where the server rejects connections from *newer* clients

I'm using a piece of commercial software where the server will reject any attempt to connect to it from a newer client. In other words, you can use version 8 of the client to connect to a v10.0 ...
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1answer
87 views

DDD - Domain Driven Design, which development order should be applied?

1 - Design my entities, ie (in python): class Account: def __init__(name, author): self.name = name self.email = email 2 - Design my repositories: (as interface) class ...
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1answer
149 views

Why are JOINS deprecated for a in-memory database?

Correct me if I'm misunderstanding. Refer to the following sentence: Stack Overflow copied a key part of the Wikipedia database design. This turned out to be a mistake which will need massive ...
32
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11answers
4k views

Ensure that each class has only one responsibility, why?

According to Microsoft documentation, the Wikipedia SOLID principe article, or most IT architects we must ensure that each class has only one responsibility. I would like to know why, because if ...
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1answer
43 views

calling an abstract method in abstract class

Suppose i have an abstract base class Parent which defines an abstract Method A(some parameter) taking a parameter, also it defines an instance Method B which calls method A(parameter) inside its ...
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1answer
90 views

Domain driven design and WCF services architecture

I am trying to figure out how to architecture my project in the DDD paradigm (a complete beginner in DDD) and stumbled upon a problem about the implementation of the web services... These are some ...
15
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5answers
883 views

Fighting technical debt as the “lowest developer”?

Let's say you work for a company and what you do is develop software for them. You have no idea of the big picture or maybe slight. What you do have are tasks assigned to you via issue tracking ...
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0answers
31 views

Best approach for a server configuration data collection and reporting solution from a legacy script?

I have a project which involves collecting config data from windows servers in our (very large) server estate. My manager wants me to collect over 150 data items across all configuration areas ...
0
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1answer
32 views

Backing up messages in S3 within a Storm topology

In my project we are trying to build up a KIND-of-a-lambda storm based architecture. The component would be responsible for indexing the site usage events so we expect a quite massive random load. The ...
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0answers
57 views

Guideline for managed (C#) and native code (C++) hybrid development [closed]

Is there any guideline for a mixed managed and unmanaged system architecture? Given the same amount of time I find managed code to give better performance. The default to pass by (constant) ...
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1answer
50 views

Contradiction of layered design and global data access for analytics reporting

While developing an application (mobile app for Android), our team always strives to use best development practices such as interfaces, layering and separation of concerns. When it comes to reporting ...
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0answers
57 views

Schemaless NoSQL RESTful design?

In a recent project; I used MongoDB with MongoEngine (an ORM/ODM for Python). This allowed me to specify schema in a central "Model". My new project I am hosting on Windows Azure; and there is no ...
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3answers
122 views

Question/Answer for multiple Users - How should I design it?

I'm wondering about a good way to deal with a Question/Answer - Model for multiple Users. My goal is to have an efficient and readable model where all the results of my users are stored. Every user ...
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3answers
81 views

Entities optional relations: separate classes or single class?

Lets focus on a domain object that is related to more other (different!) entities. Sometimes we need one relation and sometimes the other. Let's be agile and say: we don't know in a front how many ...
2
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0answers
84 views

Designing application tier - what is your best practice? [closed]

Designing application tier is not trivial. At the end of the day, in every project we write (huge) number of so-called business methods (sometimes called service methods, although it is not related to ...
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1answer
55 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: ...
4
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1answer
58 views

How to Recover from Inconsistent Job State without Database Polling

I'm working on scaling an application which is currently polling a mySQL database to send async jobs to a background processing system. A state machine is being used to keep track of the entities ...
-1
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1answer
93 views

Should We Use Surrogate Primary Keys for Every Table? [duplicate]

We are developing a data model for a marketing database that will import transaction, customer, inventory, etc. files and the directive is ONE process that works for every client. We have been told ...
0
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0answers
26 views

Web-app DAO and server architecture design for service outside LAN

i just need a suggestion what path should i take to educate myself further. Situation: We've got in our company internal (LAN only) application that, among other things, serves something like ...
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1answer
70 views

Database design: circular reference but dynamically created

I am trying to design database for this case: Assignments have vectors, relation is 1:N Assignments have submissions, relation is 1:N Submissions have executions, relation is 1:N Every execution ...
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17 views

Create a subclass of model for class-based viewmodel creation

Is it justified to create a model subclass just for creation of appropriate viewmodel based on this class. Am I missing something? How to pass data about model into viewmodel?
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2answers
91 views

Mapping between 4+1 architectural view model & UML

I'm a bit confused about how the 4+1 architectural view model maps to UML. Wikipedia gives the following mapping: Logical view: Class diagram, Communication diagram, Sequence diagram. Development ...
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0answers
46 views

Is software development really a type of engineering? [duplicate]

I'm a hobbyist Java programmer. I have aspirations to become a professional programmer, and I don't consider myself a beginner. But I'm no professional. I hear the term 'software engineering' used a ...
0
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1answer
45 views

monitor .net web applications [closed]

I am a junior dev, I am on a team with an internal ticketing system (more/less) I want to improve our monitoring so that I can tell when functionality on my app is broken. current alarms only alert if ...
3
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0answers
56 views

Video conferencing server architecture

I am developing a video conference application with the following requirements: Audio works like call conference, where all participants may talk at the same time. However, video works like ...
3
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0answers
87 views

Architecture for a template-building, WYSIWIG application

I'm building a WYSIWYG designer in Ember.js. The designer will allow users to create campaigns - think MailChimp. To build a campaign, users will choose an existing template. The template will have a ...
1
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1answer
113 views

Processing csv files (alternative to business logic in DB)

We are working on a fulfillment system for an online book store. Everyday we receive tens of CSV files (about 90 files) with data about purchased orders. Example: OrderId | BookTitle | ...
2
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1answer
72 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. ...
0
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0answers
51 views

Extracting models into a external dependency

About 9 months ago, I asked a question about creating a service layer for my application. Unfortunately, in the ensuing time, no progress in that area was made, primarily due to time constraints. As ...
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0answers
155 views

Managing data within the Scalable JavaScript Application Architecture (Zakas)

I've been reading a lot about scalable JavaScript applications and found the architecture in this presentation by Nicholas Zakas quite amazing. However I had a few questions concerning data/models ...
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2answers
72 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
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7answers
3k 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 ...
3
votes
2answers
223 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
203 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
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1answer
52 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 ...
3
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2answers
155 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. ...