A. Zeller. Smooth operations with square operators: the version set model in ICE. In ICSE '96 SCM-6 Workshop, pages 8--30, 1996.  Home/Search   Document Details and Download   Summary   Related Articles   Check

....consistency; the language employed by Make is used to give a description of the configuration, which lists dependencies between objects. A configuration, according to Make, is inconsistent if any of the files on which a particular file depends are more recently modified than that file. ICE [Zeller96] uses feature logic [Smolka92] to determine consistency; no two members of a configuration can have mutually exclusive features. Jason uses classification and a first order logic language to allow the explicit definition of validity. Constraints are written in this language, and then ....

....relating to classification and incompleteness, the modelling of the configuration management concepts of classification and versioning are now examined. Borison [Borison86] identifies a configuration as a directed acyclic graph of configuration items interleaved with manufacturing steps. Zeller [Zeller95a, Zeller95b, Zeller96, Zeller97], whose configuration management tool, ICE, is based of feature logic, also includes a single layered model of configurations (as a collection of configuration items) Lehman and Belady [Lehman85] model a configuration as a two tiered structure of units and modules. All of these have fixed levels ....

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A. Zeller. Smooth operations with square operators -- the version set model in ICE. Software Configuration Management: ICSE'96 SCM-6 Workshop Selected Papers (Berlin, Germany). Published as I. Sommerville, editor, Lecture Notes in Computer Science, 1167:8--30. Springer, Berlin, 1996.

....consistency; the language employed by Make is used to give a description of the configuration, which lists dependencies between objects. A configuration, according to Make, is inconsistent if any of the files on which a particular file depends are more recently modified than that file. ICE [19] uses feature logic [16] to determine consistency; no two members of a configuration can have mutually exclusive features. Jason uses classification and a firstorder logic language to allow the explicit definition of validity. Constraints are written in this language, and then configurations are ....

A. Zeller. Smooth operations with square operators -- the version set model in ICE. Software Configuration Management: ICSE'96 SCM-6 Workshop Selected Papers (Berlin, Germany). Published as I. Sommerville, editor, Lecture Notes in Computer Science, 1167:8--30. Springer, Berlin, 1996.

....and has given some indication of how the model can be used to design configuration management tools for dynamically composed systems. There are a number of other models of consistency of configurations apart from the one presented here and that of Wiebe, most notably the work by Zeller [24,25], and Perry [10,16,17] Zeller s work uses feature logic to define version families. This is similar in many ways to the work of Wiebe, where features can be thought of as attributes of objects and feature terms (boolean expressions that evaluate the feature values of objects, and denote common ....

A. Zeller. Smooth operations with square operators -- the version set model in ICE. Software Configuration Management: ICSE'96 SCM-6 Workshop Selected Papers (Berlin, Germany). Published as Lecture Notes in Computer Science, 1167:8--30. Springer, Berlin, 1996.

....characterised as placing more importance on partial configurations, which are common in dynamically composed systems, so that information can be discovered about them. There are a number of other models of consistency of configurations apart from ours and Wiebe s, most notably the work by Zeller [19,20], and Perry [8,11,12] Zeller s work uses feature logic to define version families. This is similar in many ways to the work of Wiebe, where features can be thought of as attributes of objects and feature terms (boolean expressions that evaluate the feature values of objects and denote common and ....

A. Zeller. Smooth operations with square operators -- the version set model in ICE. Software Configuration Management: ICSE'96 SCM-6 Workshop Selected Papers (Berlin, Germany). Published as Lecture Notes in Computer Science, 1167:8--30. Springer, Berlin, 1996.

....extended version of a paper [64] presented at the Fifth European Software Engineering Conference, Sitges, September 1995. Early descriptions of the revision and workspace concepts (sections 4.1 and 4.3) were presented in [60] The featured file system (sections 5.2 and 5. 3) was first discussed in [61]. This work was supported by the Deutsche Forschungsgemeinschaft, grants Sn11 1 2 and Sn11 2 2. Authors address: Technische Universitt Braunschweig, Abteilung Softwaretechnologie, Bltenweg 88, D 38092 Braunschweig, Germany; email: zeller, snelting ips.cs.tu bs.de; ....

....attributes and a different governing feature term. Technically, the FFS is realized through a modified NFS server [45] making the FFS available in the network. Version sets are stored as ordinary CPP files, allowing for simple recovery using CPP; a special format is available for binary files [61]. The FFS server keeps version sets in a cache once they are read; changed version sets are also kept in the cache until a superset is requested. Second and later version set accesses are served in constant time. In practice, this means that once a directory version is entered, the FFS server has ....

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Zeller, A. Smooth operations with square operators---The version set model in ICE. In Proc. 6th International Workshop on Software Configuration Management (Berlin, Germany, Mar. 1996), I. Sommerville, Ed., vol. 1167 of Lecture Notes in Computer Science, Springer-Verlag, pp. 8--30.

....that all existing versioning models can be unified to applying constrained changes [37] the quest for user friendly and intuitive SCM interaction continues. A still open problem is how to identify and denote consistent configurations in presence of multiple variants. So far, systems like ICE [36] or CMA [24] are confined to lab use only. On the other hand, one must ask whether variability at construction time that is, permanent variants is still an SCM issue. In general, product variability is best handled by the product and within the product. The more we design for change, the more ....

ZELLER, A. Smooth operations with square operators---The version set model in ICE. In Sommerville [26], pp. 8--30.

....extended version of a paper [64] presented at the Fifth European Software Engineering Conference, Sitges, September 1995. Early descriptions of the revision and workspace concepts (sections 4.1 and 4.3) were presented in [60] The featured file system (sections 5.2 and 5. 3) was first discussed in [61]. This work was supported by the Deutsche Forschungsgemeinschaft, grants Sn11 1 2 and Sn11 2 2. Authors address: Technische Universit t Braunschweig, Abteilung Softwaretechnologie, B ltenweg 88, D 38092 Braunschweig, Germany; email: zeller, snelting ips.cs.tu bs.de; ....

....and a different governing feature term. 5 Technically, the FFS is realized through a modified NFS server [45] making the FFS available in the network. Version sets are stored as ordinary CPP files, allowing for simple recovery using CPP; a special format is available for binary files [61]. The FFS server keeps version sets in a cache once they are read; changed version sets are also kept in the cache until a superset is requested. Second and later version set accesses are served in constant time. In practice, this means that once a directory version is entered, the FFS server has ....

[Article contains additional citation context not shown here]

Zeller, A. Smooth operations with square operators---The version set model in ICE. In Proc. 6th International Workshop on Software Configuration Management (Berlin, Germany, Mar. 1996), I. Sommerville, Ed., vol. 1167 of Lecture Notes in Computer Science, Springer-Verlag, pp. 8--30.

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A. Zeller. Smooth operations with square operators: the version set model in ICE. In ICSE '96 SCM-6 Workshop, pages 8--30, 1996.

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