Questions about problem solving and planning for a solution through software design.

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2
votes
2answers
135 views

Should I use a large if statement inside a view or create a different view entirely?

I'm using the MVC architecture Laravel 4.2 to create a relatively complex web application. This application consists of a website which is very heavily based on whether an event has occurred or will ...
2
votes
3answers
342 views

Multiple users using the same script for their websites

I'm working on a project, I have a question regarding the architecture: Say I have a many python scripts on my server and there's main.py which contains all the classes. And there's a script called ...
1
vote
3answers
170 views

Is my auto-update standard reasonable?

I'm looking to come up with a standard for how to implement a system that will automatically update software. As such, there is no actual programming (yet), but I still want to make sure my standard ...
2
votes
1answer
60 views

Integration between services in a SOA

Assume we have a Bounded Context for Inventory (InventoryBC) and another one for Shipments (ShipmentsBC). These 2 BCs need to communicate together. They are hosted on 2 different services on different ...
0
votes
4answers
224 views

How should nodes in a chain be connected?

Suppose you were building a system that receives data on one end and sends filtered data on the other end. The system is a chain of nodes, each receiving data from the node before and sending ...
0
votes
2answers
102 views

Implement a virtual tag on the database level

I have a set of objects, for which users manually applied tags, whatever they invented. I'd like to implement a task engine, where each task might be applied to objects from a tag. For convenience, ...
1
vote
4answers
174 views

Options for constructing an object that is not logically initialized until all fields are set

I am working on a Pokemon game at the moment, and am running into some design concerns. The easiest example is as follows: Each Species of Pokemon has several traits that are required before it is ...
0
votes
1answer
123 views

Global state of games(or other). Example : Waiting,Betting,Battling in gambling game

So I'm making a IRC betting bot. Basically the game/bot has three states of taking-in chat. State 1 : Betting If anyone says "!bet team money" parse it and record. State 2 : Battling Take nothing ...
1
vote
1answer
175 views

How would a modern website like Reddit divide up its website into Django apps? [closed]

Django uses apps to divide projects into manageable and reusable chunks. All examples in tutorials use polls or articles in unrelatable circumstances. In a modern example like Reddit (or even Amazon ...
2
votes
2answers
94 views

Entry point constructor vs init(),run() etc

Lets suppose we have some Js Widget, that includes three objects view, controller, model. var MyWidget=function(){ this.setModel(new Model()); this.setView(new View()); this.setController(new ...
51
votes
11answers
5k views

How do I avoid cascading refactorings?

I've got a project. In this project I wished to refactor it to add a feature, and I refactored the project to add the feature. The problem is that when I was done, it turned out that I needed to make ...
1
vote
1answer
122 views

Special parameters for behaviour, good or bad practice?

I really was questioning to myself where to ask this, as I could not decide myself. This is more of a software design question. Context I currently maintain a small Node.js module on NPM which ...
-1
votes
1answer
86 views

What differences are between “play-by-play”, design and implementation of an OS? [closed]

From two books' review Daniel Bovet and Marco Cesati. Understanding the Linux Kernel (2nd Edition or newer): Note: this book has some tendency to function as a play-by-play of what happens ...
0
votes
1answer
97 views

How should I structure an application containing business logic and display? [duplicate]

I'm working on a simple board game that will run in the browser. I'm thinking how to structure the program and I'd like to hear your opinions. The program will consist of the user interface part (the ...
1
vote
0answers
284 views

JavaScript program design: to what degree should I separate logic and display?

Consider you wanting to implement a simple game of checkers. There would be a rectangular game board and the player would able to move the pieces around according to a particular set of rules. ...
1
vote
0answers
141 views

How to separate out below tightly coupled classes

I have two classes which are somewhat tightly coupled to one another. Lets call them A and B. A derives from C and B derives from D. B is the class whose instance is created by the system and then B ...
0
votes
1answer
31 views

Scoping template variables in “has-a” (compositional) relationships

I'm developing a new templating language for PHP, and one of the features is an object-oriented approach to nested child templates. For example, I can declare an object of type HtmlBuilder like this: ...
1
vote
1answer
242 views

Repository pattern without entity framework?

Is it possible to implement the Repository pattern without using entity framework? I am working on a small dev team of 3 on a small scale (for now) ASP.NET MVC solution. I told my manager that I ...
1
vote
1answer
163 views

Are there any design pattern to data binding in event driven architecture?

I develop a browser based game with node.js in back and HTML5 canvas in front-end. It use WebSockets for communication. My plan is to generate business events in client side, e.g.: "finishJob". ...
0
votes
2answers
156 views

How can I (in general) program a website for mobile devices?

I really tried searching about this in the internet but came upon diverse search results which barely specified what must be done specifficaly. I'm now running ubuntu and php5 through nginx, amongst ...
0
votes
1answer
176 views

Suggestions on refactoring a poorly written ASP.Net MVC web application [closed]

I have recently "inherited" a project written in ASP.Net MVC which has quite a few issues and I'm looking for suggestions on how to go about refactoring the code. The technical issues found so far ...
3
votes
1answer
107 views

Deciding How To Split Up Architecture Using If Blocks

I'm having trouble deciding the best way to handle splitting up if block checks for different architectures. I may be handling the scenario completely wrong, so let me know if that is the case, or if ...
2
votes
4answers
258 views

Two classes that behave identically yet are semantically different

I am writing a program which is a similar to Ruby's Active Record Migrations, in which that every migration has both an "Up" and "Down" in terms of creating a change to the database, "Up" meaning ...
2
votes
0answers
53 views

Economics of scaling, denormalizing NoSQL for personalized content

I am using Cassandra for a data intensive app. With relatively little operations and deployment experience, the expertise I am looking for is someone that can read the example below and decide whether ...
10
votes
1answer
427 views

Efficient way to represent hexagonal board logic for abalone-like games

I have to implement the AI for Abalone game and I'm wondering what is the best way to represent the board logic using Java without wasting too much resources in all checks and updates routines ...
0
votes
0answers
69 views

Python - Flask controller structure

This is my first python application (I have some experience in Java/groovy-grails), and therefore I am not confident of the application structure I should be following. My application has two ...
1
vote
3answers
199 views

Object creation: when should I expose a factory vs wrapping class?

I am having some problems trying to figure out when to use a factory or to wrapper class. This question is slightly geared towards C# I guess, so I'm not sure if this is the correct place to ask. Say ...
0
votes
1answer
99 views

Passing by argument vs keeping it as a member

I really cannot decide what option is the best, I see plenty of down/upsides to both approaches and right now I'm undecided. For example; class DX11GBuffer { public: DX11GBuffer(ID3D11DevicePtr ...
2
votes
3answers
161 views

Design a Queuing Solution with Clustering and Multiple Consumers

It is a Design Problem which I am listing out here. I have different set of business operations that are carried out for different business entities. Operations: Operation A Operation B Operation ...
0
votes
2answers
57 views

To cache or not to cache a ReadOnlyWrapper object?

I have a system with a structure like this: The ConcreteWriteable is caching the ReadOnlyWrapper. This is a similar system to what .Net's System.Array uses for its Array.AsReadOnly<T>(T[] ...
0
votes
1answer
84 views

Which design is better? [MainClass] -> [Class] OR [MainClass] -> [MiddleClass] -> [Class]

I have two designs which achieve the same result. -------Design A MainClass has a List and two methods. The methods create an autonomous object and is added to the list. The reason for the ...
-1
votes
1answer
95 views

Resources to teach fundamental design concepts to a self-taught experienced developer [closed]

I'm working remotely with a programmer who is very smart and good at hacking his way around problems, but lacks some basic concepts that are fundamental to write good software: A good grasp of ...
0
votes
1answer
83 views

trigger chat across multiple devices?

I am building up a chat app. I am struggling with the idea of syncronizing the chat messages in real time. My Scenario : trigger chat messages(incoming and outgoing) on multiple devices ...
2
votes
4answers
66 views

Handle server-side/client-side when for showing missing information as placeholders

I have a database table which stores Incident details. Each Incident can have an image saved for it. There are some Incidents which will not have an image for it. I have an API which pulls the image ...
6
votes
1answer
302 views

Log to file or to database table?

I'm developing a web application which uses MS SQL for various data: including users, user accounts, user licenses, license prices, invoices. I need to log users' real-time usage of the system, and ...
6
votes
5answers
263 views

Algorithm to test file equivalence

I'm writing a program that needs to test if a file is equivalent to one or more other files. To accomplish this, every time we see a new file we stat the file and get the size. We use the size as a ...
0
votes
0answers
87 views

adding model specific CRUD operation web api endpoints

Are there are any major design flaws / smells in creating a web api as described below The models I have public class CourseModel { public String Name {get; set;} public ...
1
vote
2answers
67 views

Explicitness, verbosity and their counterpart - when to prefer which?

I'am the only one in my team who advocates for adding a little implicitness in favor of codebase reduction and decreasing repetition. Yet I don't want to be a biased 'Bad apple' playing against ...
7
votes
3answers
202 views

How to model and store an entity which has “one or more” values

I'll use C# to design the model to be persisted Let's suppose I have the following entity: public class Episode { public int Id { get; set; } public string Title { get; set; } public ...
7
votes
4answers
896 views

Is there something as a bug-free application? [duplicate]

We are developing an application that goes through many testers before reaching our client. Finally, when it reaches the client, they find some more bugs and report to us, and this has become a ...
1
vote
0answers
73 views

Design of a datamodel in a OO way

I'm looking for some advice how to design a datamodel in OO way (C++ in special). My problem: The user input in runtime is a 1D matrix A = (a0,...,an). The program creates - on the basis of A - ...
1
vote
1answer
168 views

Is it OK for an interface to only communicate half of how something should work?

I have a service where certain other services can report their status to. By status I don't mean whether they are running or not, but whether they have received data. The point is that other services ...
1
vote
0answers
78 views

What is the best way to remember a successful execution over several program calls?

I'm working on a build process, that is called manually over the command line. To check if it exited unsuccessfully during the build I want to set a lock file (symbolic link) and remove it on ...
2
votes
1answer
112 views

Suitable software development method/model for R&D Projects

For Research and Development (R&D) project, what type of software development method / model more applicable/suitable? For example, my recent R&D project has several parameters: Requirement ...
1
vote
1answer
77 views

ADT design choices

How do you go about deciding which of the following two representations (in F# syntax) is the right choice in a particular situation? type Choice = A of string | B of string Or: type ChoiceKind = ...
0
votes
2answers
102 views

Track a series of choices with a single number

I want to track a series of scored questions in a single number (the total score). Is that possible? and how? For example, I have 30 questions with either 3 or 2 choices. For any given question, the ...
24
votes
5answers
1k views

Saving an object via a method of its own or via another class?

If I want to save and retrieve an object. Should I create another class to handle it, or it's better to do that within the class? Or maybe mixing of both? Which is recommended according to OOD ...
0
votes
4answers
439 views

Is it bad to use DI to inject constructor parameters at runtime?

These are two classes, the first one I inject an instance of type IEngine while the second one I inject owner's name, tickets and engine. Version 1: public class Car { public Car(IEngine ...
8
votes
3answers
702 views

Decentralized Data Management - encapsulating databases into microservices [closed]

I've recently been taking a course on Software design and there was a recent discussion/recommendation about using a 'microservices' model where components of a service are separated into microservice ...
3
votes
1answer
229 views

Introduce Data Transfer Objects or expose complex data model in REST

We are working on an MVVM application. Jersey (backend) exposing a REST interface and AngularJS (frontend) being the only consumer of this interface. The application uses a complex database model ...