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

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0
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0answers
67 views

MongoDB Embedded vs Reference Private info

I have searched extensively for a similar Mongo schema design and can't find relevant examples. I have a store (with public info), each store has an account (with private account info). // store ...
4
votes
2answers
289 views

dealing with a very large state machine in a class

I am currently implementing a class for a network protocol. The protocol uses a quite complex and extensive finite state machine. A pair of an event plus a state is mapped to a function, which does ...
20
votes
6answers
22k views

Difference between a service class and a Helper class

I would like to know what differentiates a Service class from a utility class or a helper class? A class only with underlying methods calls the dao's is a service? Doesn't the usage of Helper ...
0
votes
1answer
72 views

Allow entities owned by one user to be referenced by other users' entities

I am working on an Asp.NET MVC web application. I have the following (simplified) entities: public class Course { public int Id { get; set; } public string Name { get; set; } public ...
2
votes
2answers
1k views

How to model users accounts in ASP MVC Framework with Entity Framework using code-first approach?

How do you design your code-first approach in entity framework when your code should include user data (name, password...) without repeating/overwriting what the MVC framework will generate in terms ...
3
votes
1answer
158 views

What is the right way to process inconsistent data files?

I'm working at a company that uses Excel files to store product data, specifically, test results from products before they are shipped out. There are a few thousand spreadsheets with anywhere from ...
2
votes
2answers
108 views

Static Test-Data in Helper Class: Getter vs Public Constant

Currently I am in process of writing large batches of Unit-Tests in the Project I am working on. Additionally we recently Introduced GUI-Testing. This project is a relatively simple webapp, on basis ...
0
votes
1answer
287 views

Git structure for java project

I know there are multiple posts on similar problems, so please be kind with me. I am asking for suggestions I have not thought of and for good advice. I have a java "project" that is structured in a ...
1
vote
0answers
117 views

How can I put multiple hierarchical forms in a single web page and avoid making it a mess?

We are a group of developers working on a web application that accepts forms filled and sent by our users and present it in an overall view. Our main form view looks like this: There are multiple ...
14
votes
4answers
837 views

Phenotropic Program Design

I recently ran across an idea put forth by Jaron Lanier called "phenotropic programming." The idea is to use 'surface' interfaces instead of single point interfaces in computer programs utilizing ...
7
votes
3answers
1k views

Writing your own framework or using an existing one? [duplicate]

I know there are similar questions to this one, and I've read most of them. Most of the answers to these questions are talking about "cost-effectiveness" and "time-saving" aspects of the frameworks, ...
3
votes
5answers
522 views

Proper OO design for State and Command

I'm working (a bit) on a (turn-based strategy) game. There are two classes relevant for the question: State: This is an immutable class, which exposes all its fields (either via getters or another ...
8
votes
2answers
401 views

Applying the principles of Clean Code to functional languages

I'm currently reading Robert Martin's Clean Code. I think it's great, and when writing OO code I'm taking his lessons to heart. In particular, I think his advice to use small functions with meaningful ...
1
vote
1answer
92 views

Is routing a site with RESTful not the best when you have very long URLs?

I've read a lot about RESTful, but I have always had a hard time figuring out how I'd use it with a very long query string. This is an in-house project, and it won't always have a simple /someAction ...
2
votes
1answer
92 views

Drawing a custom rendered control in Windows - resizing

Some background: in order to learn GUI programming and drawing in Windows I'm starting to create my own GUI toolkit in Windows (so this is a didactic exercise, please don't suggest "use Qt" or "use ...
197
votes
16answers
14k views

Started wrong with a project. Should I start over?

I'm a beginner web developer (one year of experience). A couple of weeks after graduating, I got offered a job to build a web application for a company whose owner is not much of a tech guy. He ...
3
votes
3answers
220 views

How would you rewrite/refactor this ? [duplicate]

Old application that is used by 50-60.000 paying customers. Company is several hundred people big. Application has a lot of business critical code (30% of all code) written in classic asp. Application ...
3
votes
2answers
169 views

Ranking players depending on decision making during a game

How would I go about a ranking system for players that play a game? Basically, looking at video games, players throughout the game make critical decisions that ultimately impact the end game result. ...
3
votes
7answers
544 views

Should I try to write simple key-value storage by myself? [closed]

I need a key-value storage in a simplest form we can think of. Keys should be some fixed-length strings, values should be some texts. This key-value storage should have an HTTP-backed API. That's ...
-2
votes
7answers
349 views

Vector operations: vec1.dot(vec2) vs vec1 * vec2 vs dot(vec1, vec2) [closed]

What's your preferred way to implement/use vector operations? vec1.dot(vec2) allows to reuse vec1 but is hard to read for longer equations dot(vec1, vec2) A friend of mine prefers this as "dot" ...
1
vote
2answers
264 views

Advice on approaching a significant rearrangement/refactoring?

I'm working on an application (hobby project, solo programmer, small-medium size), and I have recently redesigned a significant part of it. The program already works in it's current state, but I ...
1
vote
0answers
165 views

Why should ViewModel route actions to Controller when using the MVCVM pattern?

When reading examples across the Internet (including the MSDN reference) I have found that code examples are all doing the following type of thing: public class FooViewModel : BaseViewModel { ...
5
votes
6answers
503 views

Requesting feedback on my OO design

I'm working on an application that creates music by itself. I'm seeking feedback for my OO design so far. This question will focus on one part of the program. The application produces Tune objects, ...
1
vote
2answers
644 views

C# inherit from a class in a different DLL

I need to make an application that needs to be highly modular and that can easily be expanded with new functionality. I've thought up a design where I have a main window and a list of actions that ...
1
vote
0answers
106 views

JS closures - Passing a function to a child, how should the shared object be accessed

I have a design and am wondering what the appropriate way to access variables is. I'll demonstrate with this example since I can't seem to describe it better than the title. Term is an object ...
0
votes
2answers
148 views

Interface (contract), Generics (universality), and extension methods (ease of use). Is it a right design?

I'm trying to design a simple conversion framework based on these requirements: All developers should follow a predefined set of rules to convert from the source entity to the target entity Some ...
4
votes
2answers
136 views

Strategy to use two different measurement systems in software

I have an application that needs to accept and output values in both US Custom Units and Metric system. Right now the conversion and input and output is a mess. You can only enter in US system, but ...
1
vote
2answers
46 views

Should I reference a CopyOnWriteArraySet from the Set interface?

There are two ways to use a CopyOnWriteArraySet: // A Set<Object> set = new CopyOnWriteArraySet<>(); and // B CopyOnWriteArraySet<Object> set = new CopyOnWriteArraySet<>(); ...
0
votes
1answer
97 views

Single database, multiple system dependency

Consider an environment where we have a single, core database, with many separate systems using this one database. This leads to all of these systems have a common dependency, which ultimately ...
4
votes
2answers
367 views

How to layer if statements when order of logic is irrelevant?

Basically I have a series of logic in my website that can lead to 5 total outcomes. Basically two different if tests and then a catch all else statement. For example: if cond1: if mod1: ...
0
votes
1answer
65 views

How should I design a wizard for generating requirements and documentation

I'm currently working in an industry where extensive documentation is required, but the apps I'm writing are all pretty much cookie cutter at a high level. What I'd like to do is build an app that ...
3
votes
2answers
216 views

How do programmers handle several versions of a same program? [closed]

A lot of apps, for instance, have a free version and pro version. Do programmers, when a new update is released, remove lines of code that shouldn't be available in the free version? As for Visual ...
1
vote
4answers
142 views

When should a method of a class return the same instance after modifying itself?

I have a class that has three methods A(), B() and C(). Those methods modify the own instance. While the methods have to return an instance when the instance is a separate copy (just as Clone()), I ...
55
votes
12answers
14k views

What is the ideal length of a method? [closed]

In object-oriented programming, there is no exact rule on the maximum length of a method , but I still found these two qutes somewhat contradicting each other, so I would like to hear what you think. ...
1
vote
1answer
129 views

Changelog Management [closed]

I'm currently developing a WinForm application. In order to inform the client about the improvements and corrections made during the last version, I would like to manage and display a changelog. I ...
2
votes
4answers
349 views

How should I approach this from a problem-solving point of view?

I'm currently working on a project to replace some excel worksheets. There is a lot of industry specifics that change quite often and nobody really knows how things should be but every sure enough ...
0
votes
3answers
386 views

What is the general definition of something that can be included or excluded? [closed]

When an application presents a user with a list of items, it's pretty common that it permits the user to filter the items. Often a 'filter' feature is implemented as a set of include or exclude rules. ...
1
vote
2answers
321 views

How to approach program design with respect to data strucutres and algorimths - is there an equivelant of the OO design process for d.s.'s + algs? [closed]

My applogies for probably the worst written body of text I have produced in my life and many thanks to those willing to plough through it all. I was (and still am) not able to clearly express what I ...
0
votes
2answers
106 views

How would you create a program where two objects randomly move throughout the screen BUT never collide? [closed]

they are free to move anywhere on the screen weather in straight lines or curved ones just as long as they don't be at the same place at any given time. btw I'm not asking how to write it in code, ...
1
vote
2answers
129 views

Where should the “not empty field” validation code be written on a 3-layer application?

When working with the 3-layer model, where should the validation code be placed? for: not empty fields, unchecked options, null values, wrong-written dates, etc. To keep total isolation between a ...
0
votes
2answers
181 views

How would I implement this application idea? [closed]

I am a D&D gamer and a developer that has mostly worked with ASP.NET applications professionally. I have written some chat bots in Node.js and I have only played a little with PHP but wrote ...
1
vote
0answers
64 views

Dealing with class optional dependencies

I am wondering how are you guys handling an optional class properties. Let's say I have a product that can bud doesn't have to have a color property. Is that really the best way of doing that? Should ...
2
votes
3answers
221 views

Phone Number based Login

I'm trying to implement a phone number based login and not sure if I should ask the users for full number, i.e country code + number or just the number. What I have in mind so far: Attempt ...
0
votes
2answers
261 views

How often do you refactor or restructure your code in long term projects? [duplicate]

As developers we are always eager to learn new things and better ourselves at what we do. You've all had moments when you look at your old code and get that feeling: "WTH, I can't believe I used ...
0
votes
1answer
132 views

How to generalize a classes that has identical function plus some additional function

I have some designing problems with my project. To illustrate my problem, I'll use the following two classes from my project. public class RAM_UserManagement{ private Map<int,User> userList; ...
0
votes
0answers
82 views

Fixing data duplication in two similar tables in different databases

I'm currently doing maintenance on an old order system that has grown into the poster child for bad coding practice. One of the tings I'm dealing with is a lot of data duplication, which I want to ...
0
votes
0answers
94 views

Design decision for implementing the cache re-arrange logic

I'm working on a webapp which has an existing framework to cache values from the database. I have a requirement which needs multiple values from the database and the values have to be ...
0
votes
2answers
105 views

Which layer should service errors be handled in?

I am coding in a multitier architecture in Java, and I perform a query to a web service. Is it better form for the errors returned by the service be handled in the data access layer or in the ...
1
vote
1answer
78 views

Doesn't an event bus affect global state?

"Minimize mutable global state" is a more or less accepted program design principle. The reason often cited is that having global state can affect two components that don't are seemingly unrelated. In ...
2
votes
2answers
73 views

What is the point of writing WCF Interceptors, compared to using a helper method?

For those of you who don't know, WCF allows you to attach interceptors to methods in the service contract. The interceptor is capable of performing custom logic before and after a method call, and is ...