Adapted Design for Variety: Consideration of the SoftwareDomain Many companies are expanding their product program in response to current megatrends. In many cases, this leads to an increase in complexity within the company. One way of counteracting this is to develop varietyoriented product structures. However, existing methods do not consider the fact that in many products the functionalities are realized by physical components andor software. This paper presents an adaptation of the Design for Variety Method (DfV) of the integrated PKTapproach is presented that permits considering the software domain while using the method. The necessary adaptations are presented for each step of the method. It concludes with an outlook on further possible research topics.

Towards A Catalog of Design Patterns Variants With increasing applications of design patterns for the development of quality software applications, the accurate recovery of patterns from software applications remained active research area in the last one and half decade. The implementation variations for standard patterns hamper the accuracy of existing pattern recovery techniques and tools. There is no standard catalog on all variants of Gang of Four(GoF) design patterns in the literature. We present the first catalog on variations of GoF design patterns that are discussed in different publications, blogs and discussion forums at different levels of abstraction. A catalog with 107 variants of standard patterns might serve as a knowledge base for the design pattern research community and it might be helpful to specify GoF patterns and their variants. The critical analysis and observations on GoF design patterns and their variants are presented based on the whole study and our experience.