物件導向軟體之架構(Object-Oriented Software Construction)探討

In this book, Andrew Harvey sets out to provide a unified and comprehensive theory of structural time series models. Unlike the traditional ARIMA models, structural time series models consist explicitly of unobserved components, such as trends and seasonals, which have a direct interpretation. As a result the model selection methodology associated with structural models is much closer to econometric methodology. The link with econometrics is made even closer by the natural way in which the models can be extended to include explanatory variables and to cope with multivariate time series. From the technical point of view, state space models and the Kalman filter play a key role in the statistical treatment of structural time series models. The book includes a detailed treatment of the Kalman filter. This technique was originally developed in control engineering, but is becoming increasingly important in fields such as economics and operations research. This book is concerned primarily with modelling economic and social time series, and with addressing the special problems which the treatment of such series poses. The properties of the models and the methodological techniques used to select them are illustrated with various applications. These range from the modellling of trends and cycles in US macroeconomic time series to to an evaluation of the effects of seat belt legislation in the UK.

Forecasting, Structural Time Series Models and the Kalman Filter

[서평]「Component Software」 - Beyond Object-Oriented Programming -

The Palladio component model for model-driven performance prediction

Will Tracz, our esteemed editor and Used-Program salesman, has written an entertaining, non-technical book dealing with the practice (and lack of) of software reuse. Its a collection of essays, mostly rehashed (reused?) and updated from various columns and papers published over the years.. Its a short (a bit over 200 pages) easy reading and enjoyable book (I read most of it in one sitting). Some of the essays discuss what was printed in the past and a discussion of the current status of the points.

Safeware: System Safety and Computers

Building views on abstract models is one of the key concepts of model-driven engineering. Different views help to present concepts behind a model in a way that they can be understood and edited by different stakeholders or developers in different roles. Within graphical modelling several approaches exist allowing the definition of explicit holistic, partial or combined graphical views for models.On the other hand several frameworks that provide textual editing support for models have been presented over recent years. However, the combination of both principals, meaning textual, editable and decorating views is lacking in all of these approaches. In this paper, we introduce a textual decorator approach that allows to separately store and manage the textual concrete syntax from the actual abstract model elements. Thereby we allow to define textual views on models that may be partial and/or overlapping concerning other(graphical and/or textual) views.

Textual Views in Model Driven Engineering

Software designers often lack an understanding of the effects of design decisions on quality properties of their software. This results in costly and time-consuming trial-and-error testing, delayed and complicated rollouts of the software. In this tool demonstration paper we present an integrated tool environment - the Palladio-Bench - for modeling and analyzing software architectures. The analysis results provided by Palladio support making design decisions by identifying the best-suited design from a set of given alternatives. The demonstration video for the Palladio-Bench can be found at the URL https://youtu.be/vG7WQPcp-uI.

The palladio-bench for modeling and simulating software architectures

Model transformations are an essential operation on models which is applied at design time and even at run time. For this, the performance of transformations is an important aspect, which needs to be considered. The current research takes only the improvement of transformation engines into account but there is no method or tool support to help engineers to identify performance bottlenecks in their transformation definition. In this paper we present our proposed approach to develop a method for performance engineering of model transformations. This method should support engineers to improve the performance of their defined transformations by providing visualizations of reasons for performance problems and offering possible refactorings for a transformation which can improve its performance.

Towards Performance Engineering of Model Transformation

Proceedings of the Symposium on Software Performance: Joint Kieker/Palladio Days 2013

Model-Driven Engineering (MDE) aims at improving the development of complex computer systems. Within this context textual concrete syntaxes for models are beneficial for many reasons. They foster usability and productivity because of their fast editing style, their usage of error markers, autocompletion and quick fixes. Several frameworks and tools from different communities for creating concrete textual syntaxes for models emerged during recent years. However, open issues are incremental parsing and model updating as well as the handling and synchronisation of partial and federated views with the underlying model. In this paper we present an approach for concrete textual syntaxes that makes use of incremental parsing and transformation techniques.

Steffen Becker

Papers

Textual Views in Model Driven Engineering

The palladio-bench for modeling and simulating software architectures

Towards Performance Engineering of Model Transformation

Proceedings of the Symposium on Software Performance: Joint Kieker/Palladio Days 2013

Incremental Updates for Textual Modelling of Large Scale Models