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...Phases A B C D Requirements Refinement [10] [6] [12] [20] [25] [12] 1 2 Requirements Specifications [2] [4] [11] [13] [5] [13] [14] [17] Activities Modeling and Analysis 2 [27] [1] [13] [20] [25] 2 1 =-=[18]-=- [23] [24] [28] 2 1 [21] [28 ] [5] [7] [14] [22] Communications and Negotiations 3 [6] [2] [23] [24] 2 2 1 1 [26] [28] Verification and Validation 4 [14] [16] [17] Iteration #1 Iteration #2 Iteration ...

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...mmon to a set of products and variabilities aresfeatures that products may optionally have in a product family.sVariabilities influence software systems in the similar manner asscrosscutting concerns =-=[13, 17, 18, 22]-=-. For instance, variabilitys“x” may be implemented several times and over different productssacross a product family. According to [22], aspects andsvariabilities are orthogonal concepts, which are in...

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...ing a single year’s REV workshop. 4. Findings and Discussion Our best efforts were made to accurately map the research onto the most appropriate of the sixteen categories in the RE lifecycle; however, not every Elicitation, Understanding and Structuring Modeling and Analysis Communications and Negotiations Verification and Validation Phases A ct iv it ie s Iteration #1 Iteration #2 Iteration #n-1 Iteration #n Context and Groundwork Requirements Elaboration Requirements Refinement Requirements Specifications 1 A B C D 2 3 4 [10] [6] [12] [20] [25] [12] [27] [1] [13] [20] [25] [2] [4] [11] [13] [18] [23] [24] [28] [6] [2] [23] [24] [5] [7] [14] [22] [26] [28] [14] [16] [17] 2 1 2 1 2 1 2 1 2 1 2 1Hierarchical Visual Relational Visual Tabular Visual Sequential Visual Quantitative/ Metaphorical Visual [5] [13] [14] [17] [21] [28 ] Figure 2: Analysis of Visualization Contributions in the REV Workshops from 2006 to 2008 paper dealt directly with the creation of visualization artifacts and relevant parts of the software development process (i.e., RE). Instead, some research focused on support for visualization techniques through automation, algorithm refinement, or process improvement. Due to...

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...ware systems in thessimilar manner as crosscutting concerns [9–11,19]. Forsinstance, variability “x” may be implemented severalstimes and over different products across a product family.sAccording to =-=[19]-=-, aspects and variability are orthogonalsconcepts, which are independent of the core system andscan be combined with it when needed.sIn this section, we adapt our aspect-oriented use casesmodeling app...

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... When Aspect-Orientation Meets Software Product Line Engineering 85 principles are used for supporting different SPLE activities, such as requirements engineering [38] and variability representations =-=[39, 55]-=-. Additional types of relationships between the two approaches also exist in the literature, but these types usually refer to AOSD and SPLE as two approaches that are meant to be utilized for differen...