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

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6
votes
2answers
5k views

Front end written in languages used for back end! [closed]

From my experience in web development, I know that languages like PHP,Java,Python..etc are used for backend development stuff (software that running on server), and for front end languages, ...
0
votes
0answers
75 views

How far to go when future proofing fluent-method-chained-DSL test code?

Is it worth implementing interfaces, or using the getThis() trick, or even static factory methods to future proof against the need to extend this DSL? The current design is a pair of thin ...
0
votes
0answers
30 views

Efficiently extracting data from pdf with a template system?

basically allow a user to label specific text in a pdf file. Use the label information to create a template, which a script uses to extract text from specific pdf. What would be a good pattern to use ...
0
votes
2answers
137 views

Business Logic vs Presentation/View Logic

I often question myself of where to put the logic that organize the data to a view that is not necessarily a business logic in a 3-layered architecture (DAO, Business, View). I'll put an example to ...
1
vote
2answers
327 views

Is there a better way to organize my module tests that avoids an explosion of new source files?

I've got a neat (so I thought) way of having each of my modules produce a unit-test executable if compiled with the -DTESTMODULE flag. This flag guards a main() function that can access all static ...
2
votes
1answer
216 views

Is it normal for a Software engineer to hate a technology? [on hold]

I am working in a web framework which shall remain nameless and I really hate it for the following reasons. -> It is very badly organized. -> It is built on a language that I really hate for my own ...
0
votes
0answers
50 views

Properly design program database to reflect organization structure

I'm having trouble setting up my program's database the 'right' way. I was hoping you guys could give me suggestions on doing it properly. I am creating a database+client for a non-profit organization ...
2
votes
1answer
90 views

How do I avoid duplicating utility functions across modules?

I've seen this question but it doesn't help me because I'm writing functional code (Standard ML) and the answers there are heavily focused towards OOP (the OP is advised to use the Facade pattern, to ...
1
vote
2answers
70 views

View model structuring best practise

What is the preferred convention for structuring view model properties? It is better to use generic or more specific property names? Let's have a user, the page where this user will be displayed ...
1
vote
1answer
176 views

How does a search functionality fit in DDD with CQRS?

In Vaughn Vernon's book Implementing domain driven design and the accompanying sample application I found that he implemented a CQRS approach to the iddd_collaboration bounded context. He presents ...
0
votes
0answers
17 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 ...
-2
votes
0answers
72 views

How to plan development [closed]

I am a self-taught 17 year old who knows Java and C# as well as I can, be learning them for over a year but I have never coded anything so therefor no experience.Me and my friend are working together ...
0
votes
2answers
121 views

Design RESTful API to update a resource that belong to another resource [on hold]

I'm developing an ASP.NET MVC Web Api with C#. I have the following two resources. Group: public class Group { public int GroupId { get; set; } public string GroupName { get; set; } ...
4
votes
2answers
245 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 ...
1
vote
1answer
169 views

Should ORM data access methods be wrapped or used directly?

We're using an internally-built ORM. Each table is represented by a Model class, which inherits from a base model class that has a handful of methods like GetAll, GetWhere (to get rows with specified ...
20
votes
6answers
19k 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
0answers
66 views

Designing a simple file manager [on hold]

I've been trying to come up with the best way to design my file manager for a project. I need to work with many file implementations and I have a File class made of 2 classes inside: Data and ...
3
votes
3answers
147 views

Wrap all external calls with flag to fight against recursion and double-entry?

Producing predictable output for each possible input is the responsibility of each module. For example (in C#): class Logger { public ITextWriter Writer { get; set; } private uint counter; ...
1
vote
0answers
88 views

Angularjs Business Logic mixing

Scenario Last night I asked this question on StackOverflow. Although now I have a solution and I can move forward with the development, it feels partially answered because I have more questions now ...
0
votes
1answer
61 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
1answer
165 views

How do you show the exception handler in a class diagram?

I have one exception handler class. I want to show this class in the uml -- class diagram. But, I do not know how to represent relationship between class <X> and exception handler class. How can ...
2
votes
2answers
327 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
142 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 ...
1
vote
2answers
225 views

How to present a stable data model in a public API that allows internal data structures to be changed without breaking the public view of the data?

I am in the process of developing an application that allows users to write C# scripts. These scripts allow users to call selected methods and to access and manipulate data in a document. This works ...
3
votes
2answers
285 views

How is intermediate data organized in MapReduce?

From what I understand, each mapper outputs an intermediate file. The intermediate data (data contained in each intermediate file) is then sorted by key. Then, a reducer is assigned a key by the ...
0
votes
3answers
684 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 ...
2
votes
2answers
76 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
170 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
99 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 ...
3
votes
2answers
188 views

implementing dynamic query handler on historical data

EDIT : Refined question to focus on the core issue Context: I have historical data about property (house) sales collected from various sources in a centralized/cloud data source (assume info ...
0
votes
2answers
99 views

Traffic splitter on a single server for 50+ krps [closed]

I am building a "splitter" for web traffic: a web server that will receive an HTTP request, forward it to two backend servers, choose the best response (for which it needs to parse all of them) and ...
0
votes
1answer
255 views

Email Content creation | Proper design

Working on an E commerce application where we need to send so many email to customer like Registration email Forget Password Order placed There are many other emails that can be sent, I already ...
14
votes
4answers
787 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 ...
2
votes
1answer
77 views

How deep is enough to represent an algorithm in UML sequence diagram?

I have three simple classes. LoginController, UsersCatalog and User. UsersCatalog has an array of User. I have to represent a simple process of login. LoginController has a method login(username, ...
7
votes
3answers
999 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, ...
42
votes
9answers
33k views

Why use partial classes?

In my understanding, the partial keyword does nothing but allow a class to be split between several source files. Is there any reason to do this other than for code organization? I've seen it used for ...
1
vote
1answer
81 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 ...
2
votes
2answers
892 views

Building a distributed system on Amazon Web Services

Would simply using AWS to build an application make this application a distributed system? For example if someone uses RDS for the database server, EC2 for the application itself and S3 for hosting ...
2
votes
2answers
171 views

Implementation strategies for atomic counter

I basically have a counter variable that is decremented and frequently polled. There are three options to implement that, that I can think of: Number 1: private volatile int count; public void ...
3
votes
5answers
450 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 ...
0
votes
1answer
286 views

can you have too many dto/bo - mapping method

I have a windows service, 2 web services and a web interface that need to follow the same path (data wise). So I came up with two ways of creating my solution. My concern is the fact that the ...
2
votes
2answers
257 views

Programming by usage

Iv'e been programming for 15 years now and I often read online that it seems like a lot of people will plan out their objects and how they interact and the data they need and that seems to shape the ...
7
votes
2answers
293 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
84 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
56 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 ...
1
vote
1answer
123 views

Entity Component System Coupling

Lately I've been working on a small personal project which is basically an Entity Component System framework with autoupdated Systems. While I have a pretty good idea on the way the framework should ...
0
votes
2answers
88 views

API - How to handle scope based functionality?

TLDR; Where and possibly how should I implement scope based logic in the example code? I have got a ASP.NET Web Api. The Api uses OData (on top off REST) for data endpoints and OAuth 2.0 ...
186
votes
16answers
13k 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
203 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
149 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. ...