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Application design covers the entire pre-implementation phase of a project and consists in conceptualizing the architecture, its components, the interactions between each component, the data flows, and the processes to implement.

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1answer
45 views

How to organize users data in NoSQL database for a user invite feature (even before a user sign up)?

I am doing a collaborative note editing app which uses a NoSQL database (Firebase) in server side. Each user can sign up using their phone number or email. Currently, the user object has only four ...
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2answers
193 views

Why terminals only allow character-cell displays

In wondering about math fonts in the terminal, I started to realize that you can't really have pixel-perfect graphics in the terminal: How to draw a single pixel in a terminal? Terminal with image ...
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2answers
76 views

Difference between interaction log and “debug” or “application” log

Let's say I need two logs coming out of my application. One is for debugging issues and making sure the application runs correctly and the other is used for user statistics and general analysis of the ...
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1answer
43 views

Imposing conditional entity relations

While working on an application, I am facing an issue. And I am not sure how to solve this. For explanation I have managed to come up with a simple example below: Consider a Grocery Store ...
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2answers
70 views

Spring application context - dependency chaos

I am new in a team working on a grown and complex Spring MVC application. The application context is widely wired using @Autowire annotated constructors. This seems to be the main reason for the issue ...
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0answers
32 views

Where do I store the record sources for a form's controls?

I'm working on a Windows application that is used for tracking document review and audit information for my company. The back end is a SQL server database and most of the user tasks are basic CRUD ...
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1answer
75 views

How should i license my application?

I developed c# winform application which monitors database and I want to license it. License will be concurrent based. Standart license 2 concurrent users, Premium users 5 concurrent users. I want ...
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2answers
175 views

Migrating an Application from SQL to NoSQL [closed]

I am faced with taking a mvce's for SQL which happens to be the WideWorldImporters Database from Microsoft and migrating it to a NoSQL on mongodb. The system in question may use certain fractions of ...
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0answers
16 views

Extending a third-party platform with a chrome extension with functionality of my site

I use a SaaS which has an admin panel and front site. I have no access to the backend and can change only front-end which means I have only JS in use. I created a different site (will call it "...
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2answers
144 views

In app development is it common to first write your app in a high level language, then rewrite it in a low level language?

Maybe I have misunderstood this concept. But is it common, when developing the backend to an app, mobile or web. To first write it in a high level programming language such as php, python, javascript ...
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1answer
64 views

What types of operations should go into Node.js as opposed to client side javascript functions

I am building a web app with a lot of different API calls: our own proprietary REST API, third-party library API calls, etc. All of these calls either retrieve data, update data, delete data, or ...
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1answer
76 views

What is the best way to store message threads?

I'm integrating a messaging feature into an application written in Javascript and would like to know which is the preferred data structure of storing messages. The two structures I can think of so ...
1
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1answer
62 views

System architecture design advice

We are working on the design for an appointments system which has to work at remote locations, comms via 4G. Unfortunately a connection to the server may not be available at all remote locations, so ...
5
votes
1answer
98 views

Should data model logic live in database schema?

(Apologies if some of my terminology is off, I have not seen much on this subject and am using be best terms I could come up with) Should data model logic live in the database schema? I am making a ...
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2answers
337 views

Communicate between browser and client application on localhost

I'm currently developing a Website that requires direct access to the client computer. Therefore I decided to split this project in this three main parts. There are some requirements that have to ...
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votes
2answers
63 views

How do I let other developers integrate modules into my content generator?

Background: I'm building a desktop app where user ability to develop mods is critical. At its bare bones it is a content generator where the content has many layers, and users can develop their own ...
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1answer
54 views

Breaking apart a large javascript application that uses the object namespacing pattern

I have a mission critical Backbone application built before AMD and CommonJS were widely used. This application makes heavy use of the Object Namespacing pattern, so that that all the views, ...
0
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1answer
57 views

Add related record on record creation

My question is at a high risk of being a duplicated one, but that is not for lack of investigation. I've been around with this issue for long, and found nothing to solve it, but it seems such an ...
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2answers
59 views

Search page design with logical operators

I have a page that displays a set of records. The page has filter section to search records. currently the logical operator AND is applied between all the filter conditions. Now the requirement for ...
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2answers
85 views

Which should control the design of application software, Language or Framework or Domain? [closed]

Recently i have been looking more into the design part of application programs. The suggestion seems to be very different across different sources. For example the books like code complete suggest to ...
3
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2answers
126 views

Pricing File Creator

Problem We have a number of different customers getting a number of different price files, each customer can then also have different styles of pricing files for example customers can have just two ...
3
votes
2answers
65 views

Application with user-defined column-level permissions

I am redesigning an existing SQL Server-backed web application. This application is used for tracking subjects (names, addresses, phone numbers, etc...) and related data (assessment information, ...
1
vote
2answers
77 views

Application design for step by step filling information data flow

Suppose, my application consists of many components, where users need to fill theirs information, something like this: -Select city `-Select library `-Select book `-... a lot of components like ...
5
votes
1answer
178 views

Should I retrieve related entities from the parent entity or the service layer?

Let's say I have a three tier application structure, with Presentation, Service and Data layers. The data layer is managed by an ORM and has two models/entities, Show and Episode, with a one-to-many ...
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5answers
159 views

Do I need multiple sizes for images in my application?

It is common to provide several image sizes with applications; anything from 16x16 to 256x256 and 512x512 for HiDPI monitors. Is there a reason why we need to provide all of them? Can we not supply ...
0
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1answer
122 views

Best practices to require simultaneous write in storage objects

This question is on program architecture and relationship between DAL, Security and BLL in case, when simultaneous write in several storage objects is needed. I address it to Microsoft SQL Server ...
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3answers
189 views

Predefined city/country list vs manual entry for address table

I'm trying to design a database for my POS application and have stumbled when trying to create an address table. I'm confused whether to have city and country tables with predefined values and link ...
3
votes
2answers
2k views

Suitable data store for storing comments in a social media site

I have been developing a blogging site, where people can post an article or blog and others can comments on them. The site is coded in Angular.js, ASP.NET and SQL is being used a data store. For each ...
12
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5answers
520 views

Should a single failure fail a bulk operation?

In the API I'm working on there's a bulk delete operation which accepts an array of IDs: ["1000", ..., "2000"] I was free to implement the delete operation as I saw fit, so I decided to make the ...
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0answers
47 views

Data Access And Entity Classes inside MVC

Sorry for this question seems naive. I am new to MVC model (I know I am a bit late to join the club), and I have a question regarding MVC with PHP. I think the implementation language doesn't really ...
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vote
2answers
99 views

Need design suggestion about making a online judging system

I am currently working on project that is make a online judging system like codeforces. In this system user can submit code and the system will compile, execute, and generate output on a specific ...
2
votes
3answers
579 views

Should Data Access Layer mirror my Database Configuration?

I am trying to decide how (or whether) my Data Access Layer should deal with existing security and integrity protections on the database. The architect in me says that separation of concerns is a ...
3
votes
4answers
119 views

How to separate the logic of my application into a dependency when it is coupled to the structure of the data?

I am about to start prototyping a 'quiz'-like web application that tests test-scoring methodologies, and I have an interesting architectural question. Each quiz given to a user needs to use a set ...
0
votes
1answer
136 views

Seeking advice on design strategy for Java application

I'm a very new programmer developing my first application in Java as a side project for my employer. I'm a part-time student working full-time hoping to eventually score a developer job, and my ...
2
votes
1answer
2k views

How to synchronize data between two web services

I'm currently working on a project consisting of two different web applications. One of the applications is a PHP web server with a website front-end and a MySQL database. It consists of Laravel ...
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0answers
20 views

Design pattern for application development [duplicate]

I have a Window class, which represents a window (there is only one instance of it), and has an instance of every object inside it. For example: class Window { public: //... private: Button ...
0
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1answer
197 views

Android Studio, HTML and Java Correlation

I've recently started designing apps in Android Studio, and I've noticed that the same operations (for example, using a widget) can be completed by either going into the activityname_java file and ...
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votes
1answer
467 views

About data intensive and form intensive web applications

Can someone please highlight the definition and differences between data intensive and form intensive web applications.It would be really helpful if suitable java based web application framework or ...
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1answer
223 views

Choosing default size of application window

Suppose I'm developing an application with a simple graphical user interface, like a basic text editor. How do I choose a good default size of the application window? Should the height of the window ...
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0answers
38 views

How do you feed sets of connected data elements to an artificial neural network?

I'm currently working on a neural network to try to predict movements of electricity prices in a big city with multiple power companies to choose from. I know from a friend in the industry that power ...
2
votes
1answer
920 views

How can I find out network latency in rest service

I have two Java applications deployed on tomcat. For inter application communication I provide jar file of application (Java API) to other application and it becomes a method call which is fast. Now ...
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3answers
484 views

How to share a code base among 10+ projects and minimize pain?

I have a number of applications that share the same data in the same database. To try and minimize redundancy of code the Data Access Layer is a shared project. This prevents each project from needing ...
2
votes
2answers
131 views

Multi application handling from single GUI [closed]

I'm searching for an approach to a very generic problem. In my recent private project, I want to control different Applications from a single GUI. To make the idea more clear I'll explain my project ...
0
votes
1answer
43 views

Should registration be required for an application which relies on success based on unique barcode?

The application goes something like this: Users download app and upon downloading, a unique barcode will be presented to them. The barcode (via phone) is scanned at the checkout (so it eliminates ...
7
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3answers
3k views

What is an “application model”?

Currently I'm studying .NET Core and in the early docs which first introduced .NET Core we see that talk about the many different verticals. This can be seem in this picture: In all the verticals we ...
2
votes
2answers
106 views

Implementing a method that never returns the same data twice

I have a mobile application which retrieves x number of ContentItems from a Web API, however I need a way to only display content that the user hasn't seen before on screen. (Just to be clear, the ...
5
votes
1answer
789 views

Spring Batch + Web Scraping

I need to develop a batch processing that will be executed every day. These are the steps: Read each line of a database table that contains a URL (SQLite) Extract some data, say Users, from that ...
0
votes
1answer
40 views

Confusion over organization of services

I have the following services: UserServices This has various methods: fetch_by_id(), create() etc. SessionServices Session handling: create(), destroy(), various getters. AnswerServices An answer ...
0
votes
1answer
68 views

MySQL: Application Table Design

I'm creating a new site which will have many objects, such as posts(text/photo/video), products, photo galleries, etc. Currently my design is to put all of the objects into a posts table, but I'm ...
3
votes
1answer
4k views

Folder structure for app with Symfony 2, React, Webpack, and Sass? [closed]

I am creating an app that uses some components of Symfony2 along with React, Webpack and Sass. We will mostly code in PHP, with the other things adding functionality to our app. I'm having a hard time ...