Hans van Vliet: Requirement

Hans van Vliet is Dutch computer scientist. Explore interesting quotes on requirement.

Hans van Vliet: 10 quotes 0 likes

“Almost 2000 years ago, the Roman architect Vitruvius recorded what makes a design good: durability (firmitas), utility (utilitas), and charm (venustas). These quality requirements still hold, for buildings as well as software systems. A well-designed system is easy to implement, is understandable and reliable, and allows for smooth evolution. Badly-designed systems may work at first, but they are hard to maintain, difficult to test, and unreliable.”

Hans van Vliet

Source: Software Engineering: Principles and Practice, 2007, p. 279

Understanding

“Innovative e-business projects start with a design of the e-business model. We often encounter the view, in research as well as industry practice, that an e-business model is similar to a business process model, and so can be specified using UML activity diagrams or Petri nets. In this paper, we explain why this is a misunderstanding. The root cause is that a business model is not about process but about value exchanged between actors. Failure to make this separation of concerns leads to poor business decision-making and inadequate business requirements.”

Hans van Vliet

Jaap Gordijn, Hans Akkermans, and Hans Van Vliet. "Business modelling is not process modelling." International Conference on Conceptual Modeling. Springer Berlin Heidelberg, 2000. Abstract

Failure , Business , Decision

“Software engineering concerns methods and techniques to develop large software systems. The engineering metaphor is used to emphasize a systematic approach to develop systems that satisfy organizational requirements and constraints.”

Hans van Vliet

Source: Software Engineering: Principles and Practice, 2007, p. 2