
By Frank J. van der Linden, Visit Amazon's Klaus Schmid Page, search results, Learn about Author Central, Klaus Schmid, , Eelco Rommes
I totally anticipate that software program Product strains in motion turns into one of many foundational references of this quickly-evolving box. Its the main entire therapy of product line perform in lifestyles this day. from the Foreword by way of Paul Clements, SEI Carnegie Mellon college, united states
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4. Texture: a collection of rules for implementing the architecture and evolving it over time. These rules may be expressed as coding conventions, design patterns and architectural styles. Each of these concerns is explained below. 1 Architecturally Significant Requirements In theory, requirements engineering is a prerequisite to architecting, and thus requirements for the architecture will be established. In practice, architects often cannot afford to wait until a stable requirements specification is available to them.
Identify (detailed) relevant functionality. Characterise functionality in terms of economic characterisation functions. Derive asset proposals from evaluation results. In the first step, the economic goals for product line reuse are detailed and transformed into an economic model attuned to the specific organisation. The more precise these models are, the more precise the resulting evaluation will be. 5 Summary 35 base data already has significant impreciseness. As a result of this step, highlevel benefits – like effort-saving – are broken down into elementary, directly measurable elements, like size of component or developer productivity.
Unfortunately, the situation with respect to precise data is still rather poor as we still lack a lot of thoroughly validated data. Most data on the economic impact of product lines is only available on a highly aggregated level, as we will see in Part II of this book. 6 The picture that emerges looks roughly as follows: • The cost of building assets for product line reuse is higher than building assets for single system development. However, the precise overhead seems to be strongly dependent on several factors, among them the product line introduction approach and the specific functionality that must be generalised.