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Types of clouds

There are many different ways of using cloud computing depending on what you want to do. More or less all of us use Software as a Service, at least from …

The future of cloud computing

Before I get to the future, let me say a few words about the past of cloud computing. The idea is actually very old, it even predates the PC (personal …

The role of IS/ICT in organisations

IS/ICT can play different roles in organisations. Below I discuss some of the typologies that may help us make sense of these roles. Of course, we will not forget that …

What will we learn about?

This week we elaborate the picture of computers in organisations. Computers have become such a quintessential part of our lives that we consider them indispensable. They are not. I will …

What is a cloud?

Cloud computing is perhaps the most popular IS/ICT term nowadays. Surprisingly however, few people know what it means exactly. However, this is actually a great example of the success of …

Further (optional) readings

In this step, we have collated an extensive list of readings for this week’s topic. At the beginning of the list, you will find links to online sources, such as …

Ask Viktor

Throughout this course, you will have the opportunity to ask Dr Dörfler the questions that matter to you. Please post your questions for this week in the comments section below. …

Consultants: Always in the spotlight!

Normally in any IS/ICT implementation we work with consultants. This is necessary as the buyer and the seller of an IS/ICT are never on the same page. The buyer wants …

From Grocery to Supermarket

One of the significant signs of ‘growing up’ in the world of business is when your small company reaches the size that you need to get an Enterprise Resource Planning …

Decision ≠ Monitoring

Sometimes IS/ICT is sold and purchased with all the wrong conceptions on what purpose they serve. Therefore, I discuss below some prominent points of what computerised IS/ICT can really help …

State-transition diagram (STD)

The STD focuses on the time-dependent behaviour of the system and regards it as a whole. Its purpose is to identify the possible states of the system (as a whole), …

Data-flow diagram (DFD)

Dataflow diagrams are functional descriptions of the system (IS or otherwise); i.e. they describe what data are processed and stored, where, how, when and eventually by whom they are modified, …

Entity-relationship diagram (ERD)

In relation to DFD, the ERD can be considered as a meta-level diagram as it focuses on the types of data/objects and how they are related. The most significant challenge …

Hard methods

Hard methods, not only named so in IS design, are not called hard as opposed to easy, but in contrast to soft. Indeed as a friend of mine, Felix Hong, …