Over the past decade a variety of process languages have been defined and applied to software engineering environments. The idea of using a process language to encode a software process as a "process model",...
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ISBN:
(数字)9783540481669
ISBN:
(纸本)3540665382
Over the past decade a variety of process languages have been defined and applied to software engineering environments. The idea of using a process language to encode a software process as a "process model", and enacting this using a process-sensitive environment is now well established. Many prototype process-sensitive environments have been developed;but their use in earnest has been limited. We are designing a second generation process language which is a significant departure from current conventional thinking. Firstly a process is viewed as a set of mediated collaborations rather than a set of partially ordered activities. Secondly emphasis is given to how process models are developed, used, and enhanced over a potentially long lifetime. In particular the issue of composing both new and existing model fragments is central to our development approach. This paper outlines these features, and gives the motivations behind them. It also presents a view of process support for software engineering drawing on our decade of experience in exploiting a "first generation" process language, and our experience in designing and exploiting programming languages.
Persistent programming is concerned with the creation and manipulation of data with arbitrary lifetimes. A requirement of such systems is that the data (including programs) must be capable of evolving and that evoluti...
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Persistent programming is concerned with the creation and manipulation of data with arbitrary lifetimes. A requirement of such systems is that the data (including programs) must be capable of evolving and that evolution should be within the control of the application's programmer. This paper discusses some recent developments in persistent programming that enable controlled evolution. The areas discussed are: the use of type systems, the use of reflection and a new style of programming, only available in persistent object systems, called hyper-programming.
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