Now that the industry is moving towards cloud services, it’s important to know which framework you need to work in for your software solutions. Is it cross-platform? Is it built using an older API? Do you care about backwards compatibility? There are two supported implementations for building server-side applications with .NET: .NET Framework and .NET Core. Both share many of the same components but there are also fundamental differences and your choice depends on what you want to accomplish.
In most circumstances, the better option is to use .NET Core - but not everyone has the luxury, and that’s where .NET Framework becomes a more viable option. Let’s take a deeper look at both cloud-based implementations and what they bring to the table when it comes to building applications.
Differentiating Between .NET Core and .NET Framework
.NET Core is an open-source, general-purpose development platform maintained by Microsoft and the .NET community. Designed to enable broad adaptability to new platforms and workloads, .NET Core can be freely adopted by individuals and companies, including personal, academic, or commercial use. Numerous companies use .NET Core as part of apps, tools, new platforms, and hosting services. The product is broken into several pieces, enabling the various parts to be adapted to new platforms at different times.
.NET Core Characteristics
- Cross-platform: Runs on Windows, macOS and Linux operating systems.
- Consistent across architectures: Runs your code with the same behavior on multiple architectures, including x64, x86, and ARM.
- Command-line tools: Includes easy-to-use command-line tools that can be used for local development and in continuous-integration scenarios.
- Flexible deployment: Can be included in your app or installed side-by-side user- or machine-wide. Can be used with Docker containers.
- Compatible: .NET Core is compatible with .NET Framework, Xamarin and Mono, via .NET Standard.
- Open-source: The .NET Core platform is open-source, using MIT and Apache 2 licenses
Also developed by Microsoft, .NET Framework is a virtual machine for compiling and executing programs written in different languages. It is used to develop form-based applications, web-based applications, and web services. Computer code written using .NET Framework is called managed code. Programs written for .NET Framework execute in a software environment named Common Language Runtime (CLR), which runs the code and provides services that make the development process easier.
The .NET Framework provides many services, including memory management, type and memory safety, security, networking, and application deployment. It provides easy-to-use data structures and APIs that abstract the lower-level Windows operating system using a variety of programming languages.
.NET Framework is a technology that supports building and running the next generation of apps and XML Web services. It was designed to:
- Provide a consistent, object-oriented programming environment whether object code is stored and executed locally, executed locally but Internet-distributed, or executed remotely.
- Provide a code-execution environment that minimizes software deployment and versioning conflicts.
- Provide a code-execution environment that promotes safe execution of code, including code created by an unknown or semi-trusted third party.
- Provide a code-execution environment that eliminates the performance problems of scripted or interpreted environments.
- Make the developer experience consistent across widely varying types of apps, such as Windows-based apps and Web-based apps.
- Build all communication on industry standards to ensure that code based on the .NET Framework integrates with any other code.
Differences Between .NET Core and .NET Framework
When looking at .NET Core and .NET Framework, while they seem somewhat similar, there are in fact some major differences between the two cloud-based software solutions, such as:
.NET Core and Cross-Platform
By far the biggest advantage .NET Core has over .NET Framework is its cross-platform capabilities – that means you can run it on multiple platforms and architectures. If your application (web/service) needs to run on multiple platforms (Windows, Linux, and macOS), use .NET Core. Or when your server application uses Docker containers, targets micro services in those containers, or you really need something that’s scalable, then .NET Core is the obvious choice.
You can deploy .NET Core applications as framework-dependent applications and as self-contained applications.
- Framework-dependent applications require the .NET Core framework to be installed on the machine that the app will run on
- Self-contained applications don’t, because they contain everything the app needs to run
- Framework-dependent applications can run on any operating system that you install .NET Core on, without modification
- In contrast, for every OS that you want a self-contained app to run on, you need to publish an OS-specific version
When your system needs the best possible performance and scalability, selecting .NET Core is the best option.
.NET Framework and Compatibility
One key advantage that .NET Framework has over .NET Core is an extensive list of supported libraries that are not on .NET Core. Many companies already have a solution in place to handle their enterprise applications, and that solution was very likely built on .NET Framework. As it stands, it is much more efficient to continue development in .NET Framework unless a complete overhaul is desired. Framework however works just fine, especially with features that aren’t going to be ported into Core such as ASP.NET Web form applications or Windows Presentation Foundation (WPF).
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