Experience with building an architecture for an industrial Automatic Guided Vehicle Transportation System (AGVTS) shows that several essential concerns crosscut the architectural views. To cope with this, a stronger separation proved to be necessary, i.e. using different views for different concerns. In practice this was difficult, since the support for relations between views is very limited. ...

More and more software projects are using COTS (commercial-off-the-shelf) components. One of the most challenging problems in COTS-based development is to evolve a system to follow changes in the customer requirements. It is therefore important to increase the changeability of the COTS-based system, so that new component can easily replace the problematic COTS components. Aspect-Oriented Progra...

Augmented reality is growing rapidly and supports people in different fields such as education, design, navigation and medicine. However, there is limited discussion about the characteristic features of augmented reality and what is meant by the term. This paper presents five different features: changeability, synchronicity and instant, antecedent, partial one to one and hidden reality. The exp...

Augmented reality is growing rapidly and supports people in different fields such as education, design, navigation and medicine. However, there is limited discussion about the characteristic features of augmented reality and what is meant by the term. This paper presents five different features: changeability, synchronicity and instant, antecedent, partial one to one and hidden reality. The exp...

Nowadays, mobile-device applications operate in a virtual sandbox that runs each application in a tightly constrained environment. The applications don’t share code and can’t communicate with each other. This environment offers more security by preventing users from downloading buggy, malicious, or virus-infected code, but it lacks the flexibility, changeability, and maintainability that mobile...

Quality software are robust, reliable and easy to maintain, and therefore reduces the cost of software maintenance. But as software systems undergo modifications, improvements and enhancements to cope with evolving requirements, quality of software can be decreased. Refactoring is one of the methods which have been applied to improve software quality. Supporters claim that it helps increasing t...

More and more software projects are using COTS (commercial-off-the-shelf) components. One of the most challenging problems in COTS-based development is to evolve a system to follow changes in the customer requirements. It is therefore important to increase the changeability of the COTS-based system, so that new component can easily replace the problematic COTS components. Aspect-Oriented Progra...