Automating the evolution of object-oriented systems

Hürsch, Walter L.; Seiter, Linda M.

doi:10.1007/3-540-60954-7_40

Cited by 10 publications

(6 citation statements)

References 6 publications

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“…Adaptive Programming [28,41] enables the expression and reasoning about object structure traversals as a higher-level strategy, separate from the core functionality of a program. As a specific implementation of the adaptive programming paradigm for Java, the DJ library [49] uses a dynamic form of the Visitor design pattern through the use of reflection.…”

Section: Related Workmentioning

confidence: 99%

"Program, enhance thyself!"

Tilevich

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2008

Proceedings of the 7th International Conference on Aspect-Oriented Software Development

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Program enhancement refers to adding new functionality to an existing program. We argue that repetitive program enhancement tasks can be expressed as patterns, and that the application of such enhancement patterns can be automated. This paper presents a novel approach to pattern-oriented automated enhancement of object-oriented programs. Our approach augments the capabilities of an aspect compiler to capture the programmer's intent to enhance a program. In response to the programmer referencing a piece of functionality that is non-existent, our approach automatically synthesizes aspect code to supply the required functionality transparently. To improve flexibility and facilitate reuse, the synthesis and application of the new functionality is guided by declarative whenthen rules, concisely expressed using a rule base.Our extensible automated program enhancement system, called DRIVEL 1 , extends the AspectJ compiler with aspect generating capabilities. The generation is controlled using the DROOLS rules engine. To validate our approach and automated tool, we have created a collection of enhancement libraries and used DRIVEL to apply them to the LibX Edition Builder, a large-scale, widely-used Web application. DRIVEL automatically enhanced the LibX Edition Builder's XML processing modules with structural navigation capabilities and caching, eliminating the need to implement this functionality by hand.

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Section: Related Workmentioning

confidence: 99%

"Program, enhance thyself!"

Tilevich

Back

2008

Proceedings of the 7th International Conference on Aspect-Oriented Software Development

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show abstract

“…To capture the relationships between a propagation pattern, a class dictionary graph, and an object being traversed, we introduce the notions of propagation paths, propagation scope, as well as compatibility of propagation patterns. Readers who are interested in formal semantics of the wrapper orders and implementation considerations may refer to [24], [25], [11].…”

Section: Definition 5 (Propagation Pattern) Let * = (V L Ec Ea) Bmentioning

confidence: 99%

“…Readers who are interested in the formal proof of the proposition may refer to our technical report [24]. The techniques developed in [25], [11] can also be used for constructive proof of this proposition. Note that the propagation pattern refinement mechanism not only increases the flexibility and adaptiveness of propagation patterns against future operational requirement changes, but it can also be useful for promoting the concept of propagation pattern inheritance under a class dictionary graph, especially when there is a need of applying an existing method (function) to a subset of its current domain or codomain instead.…”

Section: ) Ma(d) ¯ Ma(e)mentioning

confidence: 99%

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The role of polymorphic reuse mechanisms in schema evolution in an object-oriented database

Liu

Zicari

Hürsch³

et al. 1997

IEEE Trans. Knowl. Data Eng.

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A seamless approach to the incremental design and reuse of object-oriented methods and query specifications is presented. We argue for avoiding or minimizing the effort required for manually reprogramming methods and queries due to schema modifications, and demonstrate how the role of polymorphic reuse mechanisms is exploited for enhancing the adaptiveness of database programs against schema evolution in an object-oriented database. The salient features of our approach are the use of propagation patterns and a mechanism for propagation pattern refinement. Propagation patterns are employed as an interesting specification formalism for modeling operational requirements. They encourage the reuse of operational specifications against the structural modification of an object-oriented schema. Propagation pattern refinement is suited for the specification of reusable operational modules. It promotes the reusability of propagation patterns toward the operational requirement changes. This approach has a formal basis and emphasizes structural derivation of specifications. The main innovations are in raising the level of abstraction for behavioral schema design, and for making possible the derivation of operational semantics from structural specifications. As a result, both the modularity and reusability of object-oriented schemas are increased.

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“…In order to evaluate the modularity and the modifiability of CIMLA, we have identified the requirements for CIMLA from the MMLA literature. For each of the identified requirements, CIMLA components have been designed following Separation-of-Concerns (SoC) architectural design principle [Hürsch and Lopes, 1995]. Further, components have been technically instantiated and a reference implementation has been developed.…”

Section: Introductionmentioning

confidence: 99%

CIMLA: A Modular and Modifiable Data Preparation, Organization, and Fusion Infrastructure to Partially Support the Development of Context-aware MMLA Solutions

Shankar¹,

Ruiz‐Calleja²,

Prieto³

et al. 2023

jucs

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Multimodal Learning Analytics (MMLA) solutions aim to provide a more holistic picture of a learning situation by processing multimodal educational data. Considering contextual information of a learning situation is known to help in providing more relevant outputs to educational stakeholders. However, most of the MMLA solutions are still in prototyping phase and dealing with different dimensions of an authentic MMLA situation that involve multiple cross-disciplinary stakeholders like teachers, researchers, and developers. One of the reasons behind still being in prototyping phase of the development lifecycle is related to the challenges that software developers face at different levels in developing context-aware MMLA solutions. In this paper, we identify the requirements and propose a data infrastructure called CIMLA. It includes different data processing components following a standard data processing pipeline and considers contextual information following a data structure. It has been evaluated in three authentic MMLA scenarios involving different cross-disciplinary stakeholders following the Software Architecture Analysis Method. Its fitness was analyzed in each of the three scenarios and developers were interviewed to assess whether it meets functional and non-functional requirements. Results showed that CIMLA supports modularity in developing context-aware MMLA solutions and each of its modules can be reused with required modifications in the development of other solutions. In the future, the current involvement of a developer in customizing the configuration file to consider contextual information can be investigated.

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Automating the evolution of object-oriented systems

Cited by 10 publications

References 6 publications

"Program, enhance thyself!"

"Program, enhance thyself!"

The role of polymorphic reuse mechanisms in schema evolution in an object-oriented database

CIMLA: A Modular and Modifiable Data Preparation, Organization, and Fusion Infrastructure to Partially Support the Development of Context-aware MMLA Solutions

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