All Questions

I had built Electonic Medical Records (EMR) App using a 3-Tier Architectural style. Storage Tier: SQL Server Application Tier: WCF Rest Services hosted in IIS Presentation Tier: Website calling ...

My app is using this kind of layered architecture: Controller > Service > Repository > Data Mapper > Persistence Often I notice that my service methods are just directly calling ...

what should i choose as classes in object oriented programming. how to find what all are supposed to be the classes in my code. is it the processes or the nouns? I have a website i am designing in php,...

Well, I've been hammering away on this for about a week now with no practical progress because I can't find mental fluidity with the concepts I'm trying to wrangle. I'm Officially Stumped, and would ...

So I am in the process of finishing an app (android for now), and I have a doubt about if I should have papers that proof that I made that app. Its the first time for me to publish an app, and I am ...

When evaluating whether to use webhooks or polling for an architectural decision I've been reading some articles. Most highlight the obvious drawbacks with using polling such as: wasted resources (...

I had to increment my integer twice in a loop, so I thought I would try and be clever: for (int i = 0; !sl.isEmpty(); ++i++) { ... } ++i++ however is not an assignable expression, at least in GCC. ...

I am currently working on an IoT devices update mechanism. So far what I have done Installation of signed bundles using RAUC Encryption/Decryption of the bundles using AES-CBC 256 The update bundles ...

Most binaries have jump and control flow instructions that are relative to other locations in the binary. For example: if I modify an instruction around 0x12341232, and there is an instruction ...

I am trying to understand the concept of dependency inversion and I think I finally got the concept. However now I am struggling with another issue, which is the selection of framework, when ...

So i want to make a sequence diagram for login .. the first step is user access my website then the system redirect to login Form, then he insert username and password than the system validate it , if ...

I'm using MSTest. I have some async functions I'm unit testing that rely upon a lot of different methods where the result needs to be awaited upon. Sometimes the unit tests stall in a "running" stage ...

This is probably a design/architectural question. My app uses RSA initiated SSO using SAML for authentication and from there on my app uses its own session to manage the request. There is a flaw in ...

I've been going over some tutorials on machine learning using Python and libraries including SciKit Learn and Tensor Flow. (Basic tutorials like creating an algorithm to predict a price given input ...

To avoid similar mistakes as Citrix, I would like to understand what people have done wrong in programming. According to my understanding, based on the link here, there was the possibility to create ...

Would it be feasible to provide (or further) multi-core threading ability for programs that weren't originally designed for such? And doing so by creating a "virtual" CPU core (or for i7's with ...

I have a FOSS library made public through GitHub. It's not a big library, it doesn't have a community around it or anything like that - but it does get a few dozen unique clones a week. Now, I'm ...

Over the years, I have seen quite a few questions on this site along the lines of "can I invent my own HTTP response codes"? Generally asked by those who are developing both the server and client. The ...

I'm working on a SaaS medical research startup project with a MIT license. The goal is for the source to be open (because then customers can help improve it and find bugs), and end-users who want to ...

I'm a .Net developer and Angular who's been working with OO languages throughout my education and work history. Lately I've been thinking about spending some time with one of the functional ...

In any programming task, my preference is to write fail-fast code. That doesn't seem to be too controversial. However, I've also seen many developers say that constructors should do as little as ...

We've got an aggregate root that has a position value so it can be ordered among the other aggregate roots; relative position is something that can change over time. We'd like to have a method that's ...

I'm obsessed with organization - it's probably the real reason why I enjoy coding. So I namespace everything. But I'm just curious if I'm doing it wrong by being redundant. Consider this, which I ...

On the php manual they define the scope resolution operator as following: The Scope Resolution Operator (also called Paamayim Nekudotayim) or in simpler terms, the double colon, is a token that ...

I'm experimenting with event sourcing for an application we haven't build yet. No, I won't implement this without any thought, I'm just experimenting. My domain model looks somewhat like this. The ...

I have a question regarding CI/CD procedure. I do have 2 Jenkins jobs, the 1st one will build a binary file who is a dependency to the 2nd job build successfully. Should I push this binary from 1st ...

Imagine that I have a system to manage sports teams. Let's not make it specific to a particular sport, but consider that each team consists of a number of players. Therefore, I might have an ...

We have many API services (C# Web-API, non REST) and each of them has own separate logic and separate request and response models. Some of this models (you can call them DTO or Domain Class) can be ...

I have this method: private void ModerateTravel() { var vm = new ModerateTravelViewModel(); moderate.ShowModerateTravel(vm); Observable.FromEventPattern<string>(h => vm.Error += ...

I have Knowledge About abstract Class And interface but I do not know when to use abstract class and when to use interface

I am in a predicament. I am working in a repo that makes a lot of db changes within its functions. The function I am dealing with returns responseids (but from a transformation, not from any db ...

I was given a solution with many projects. Multiple projects call multiple REST APIs. These calls are scattered around the spaghetti code. Trying to figure out what calls are done in what sequence ...

I am building an app to register and update children information, this information is to be provided by their tutors. Every child can have multiple tutors, and a tutor can be a tutor for multiple ...

I'm designing a platform that will run robots developed by others. Basically anyone could implement a IAutonomousAgent and register the implementation on the platform. At runtime, the platform will ...

In school/college our first encounter with loops and iterations probably looks someting like this: for (int i = 0; i<10 ; i++;){ // Do Something } And many of us stick to the idea of use the ...

There are cloud-managed devices on the market, like switches/routers/firewalls/etc. In that kind of devices you have little configuration options on the device itself and you manage the configuration ...

I am studying a book about software design called: Nonfunctional Requirements in Systems Analysis and Design which talks about the Axiomatic Design Methodology. This methodology has two axioms. One ...

Earlier, we serve with web service but we decide to use dll methods. Because served products are on same machine with common database. So we start to create a library with .net core. This library will ...

I'm writing a number of Selenium test classes that use Helper classes which contain processes that are often reused (ie. accessing a particular page, entering something into a specific field, etc.) ...

I was not sure how to title this question, but bear with me. My company is building a new product and for it we will use a third-party service (let's call it ENB for short) to be responsible for many ...

I have a website developed for my client, and he's currently on an annual maintenance billing for the same post development pushed to production, that he'd paid me for the development charges ...

Had an interesting discussion with our architect. It was related to replacing a plain DLL reference with a NuGet package. His worry was "If it is possible for single NuGet package to add multiple DLL ...

I want to design an effective mongodb schema for a relational database.I don't know where to start.Can anyone please help me regarding it

I have the following common pattern that I need to use in an application: Given a list of keys, call a function with a parameter to find values for the keys. The function may return null for a given ...

I recently found out that I have probably been using ball/socket notation in a wrong way all the time. Now I am confused by the different ways of drawing interface relationships in two regards (I ...

Suppose I have a function CalculateOutput(n) which creates an array of size n and repeatedly modifies this array by iterating through every element from 0 to n - 1 (say this is done in linear time). ...

When writing a library, designing a class or extending some existing API, we often need to express actions or relations involving noun entities: "Place the ball in the bin" "Obtain the coat for the ...

I completely understand, I think, how injecting a dependency of a class allows that dependency to be mocked and the class to be tested with the mocked version. What I am not sure about is if you use @...

I need to move a single-tenant web application to a multi-tenant (about 100 tenants) web application. Tenants are going to share the same application but each tenant is going to have its own database (...

I have a function that converts args given by argparse to a filename: def args2filename(args, prefix): filename = prefix kwargs = vars(args) for key, value in sorted(kwargs.items()): ...