Class diagrams with UML

Creating class diagrams with UML

Class diagrams are structural diagrams in the UML modeling language. The UML class diagram is suitable for visualizing system elements and their dependencies for object-oriented programming languages. If you are a modeler creating a class diagram, it is advantageous to adhere to the official notation and semantics. This is the only way to avoid misunderstandings. We will explain notation for the...

How to enable cookies in your browser

How do I enable cookies in my web browser?

Cookies save user information during website access to improve the page’s user-friendliness or record customer behavior. They’re responsible for noting down login data, browser settings, and other useful information so that you don’t have to set everything up again each time you visit the same site. Cookies can be completely or partially enabled, or just enabled for particular websites. How to...

Alternatives to Adobe Acrobat

The best Adobe Acrobat alternatives

Adobe Acrobat is the most well-known program when it comes to working with the popular PDF format. But there are reasons to prefer an alternative to Adobe Acrobat. For some users, the huge range of functions is simply unnecessary. Others want to avoid the yearly subscription costs and are looking for a more affordable solution. In our overview, find out which Adobe Acrobat alternatives there are...

Personal data

Everything you need to know about personal data

What do your e-mail address, eye color, preferred political party, and license plate have in common? They can all be regarded as personal data which companies and cybercriminals can use to draw direct or indirect conclusions about your physical, physiological, genetic, psychological, economic, cultural, or social identity. It goes without saying that this sensitive information must be protected...

SASS

SASS: next-level CSS?

If you design your own website, then you probably work with CSS. But have you ever thought about SASS? The practical preprocessor extends the popular stylesheet language with various helpful functions and makes it even easier for you to design. Variables, loops, case distinctions, and practical mixins make your life as a web designer easier. We explain to you what SASS can do better than CSS.

Internet of Things

The internet of things: The era of networked things

The internet of things (IoT) is driving digital change. Smart household appliances and self-driving cars are already available. More and more everyday devices are being connected to form a comprehensive network that will eventually penetrate all areas of life. The 5G mobile communications standard will soon be implemented, which will help IoT achieve a breakthrough in the foreseeable future. Smart...

UML: activity diagram

Activity diagrams: clearly present chronological activity processes with UML

UML activity diagrams help you to graphically illustrate the chronological sequence of system processes in object-oriented programming. They show which actions take place in which order to execute an activity. With a finished diagram, you can create code frames using XML transfer. Or do you want to map business processes? We show examples of how to create an activity diagram, which symbols belong...

SSL certificate

SSL certificates

Security on the internet is always paramount: regardless of whether you run a website yourself or just surf the web, you should always understand the basics of internet security. Here we explain exactly what SSL certificates are and what you need them for. Encryption and authentication are the main purposes of certificates. They are intended to protect internet users’ personal data from criminal...

UML: Unified Modeling Language

UML - a graphical-type modeling language

If you need to run object-oriented programming, to represent a system clearly, and also make it accessible to external specialists, you may find the Universal Modeling Language to be ideal. UML is a modeling language, but has many other possible uses. Since the introduction of UML 2.0, UML diagrams are also suited to the graphical representation of non-computer-based concepts, such as use case...

What's a hackathon?

Hackathons: intense and innovative programming retreats

What is a hackathon, and what happens at one? Very little sleep, innovative ideas, and a lot of hard work! In addition to a definition of a hackathon, and an explanation of how it works, we also provide a few examples of hackathons in the US, as well as some of the amazing projects that came from them, such as mental health apps, and organ transplant aides.

Websites

1&1 Website Guide: website advice for all

A website isn’t just a website – these days, there are countless ways to create an online presence in a way that matches your expectations. The ‘Websites’ section of the 1&1 IONOS Digital Guide offers detailed information about creating, managing, and optimizing websites as well as facts and general background information on the World Wide Web. For a closer look, you can also explore one of several subcategories about different topics. Here, we present website advice for everyone, from mere enthusiasts to qualified professionals.

What’s in the 1&1 IONOS Website Guide?

The ‘Websites’ section is one of six main categories in the 1&1 IONOS Digital Guide. ‘Websites’ is then broken down into four further subcategories: ‘Website creation, ‘Web design’, ‘Web development’, and ‘Digital law’. While ‘Website creation’ focuses primarily on the technical aspects of internet sites, ‘Web design’ articles look at the optical makeup of content, in particular the use of text, images, and responsive displays through HTML or CSS. ‘Web development’ covers the use of scripting languages, like PHP or JavaScript, as well as specific tools for the development of internet services. But basic information about the standards and trends of website development can also be found here. The subcategory ‘Digital law’ presents online laws and practices, like image usage rights and privacy policies.

Website advice for beginners, advanced users, and professionals

The Website Guide serves as an information portal for small and medium-sized companies, along with developers, web designers, technology lovers, and general internet enthusiasts. Many articles on the 1&1 IONOS Digital Guide require little background knowledge, though some are also aimed at more experienced users. Beginners can enjoy posts on topics like ‘What exactly is a website?’, ‘The basics for modern web development’, or ‘How are websites accessed?’, while more advanced readers can broaden their knowledge of specific topics with comprehensive articles and tutorials. So whether you are a novice, an advanced user, or a professional: our handy Website Guide has plenty of useful tips and tricks to help you become an expert on the World Wide Web.


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