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Publicações

Publicações por Ademar Aguiar

2014

Support for refactoring an application towards an adaptive object model

Autores
Guerra, E; Aguiar, A;

Publicação
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)

Abstract
Flexibility requirements can appear in the middle of a software development, perceived by several client requests to change the application. A flexible domain model, usually implemented with using the adaptive object model (AOM) architectural style, required custom-made components to handle the current implementation of the domain entities. The problem is that by evolving an AOM model, the components need to be evolved as well, which generates constant rework. This work studied the possible AOM evolution paths, in order to provide support in the components for model changing. An evolution of the Esfinge AOM RoleMapper framework were developed to provide this functionality, allowing AOM models in different stages to be mapped to a single structure. The study was evaluated using a set of tests that were applied in each possible structure for the model. © 2014 Springer International Publishing.

2017

Learning Frameworks in a Social-Intensive Knowledge Environment - An Empirical Study

Autores
Flores, N; Aguiar, A;

Publicação
INTERNATIONAL JOURNAL OF SOFTWARE ENGINEERING AND KNOWLEDGE ENGINEERING

Abstract
Application frameworks are a powerful technique for large-scale reuse, but require a considerable effort to understand them. Good documentation is costly, as it needs to address different audiences with disparate learning needs. When code and documentation prove insuficient, developers turn to their network of experts. Nevertheless, this proves difficult, mainly due to the lack of expertise awareness (who to ask), wasteful interruptions of the wrong people and unavailability ( either due to intrusion or time constraints). The DRIVER platform is a collaborative learning environment where framework users can, in a non-intrusive way, store and share their learning knowledge while following the best practices of framework understanding (patterns). Developed by the authors, it provides a framework documentation repository, mounted on a wiki, where the learning paths of the community of learners can be captured, shared, rated, and recommended. Combining these social activities, the DRIVER platform promotes collaborative learning, mitigating intrusiveness, unavailability of experts and loss of tacit knowledge. This paper presents the assessment of DRIVER using a controlled academic experiment that measured the performance, effectiveness and framework knowledge intake of MSc students. The study concluded that, especially for novice learners, the platform allows for a faster and more effective learning process.

2013

Composing classes: Roles vs traits

Autores
Barbosa, F; Aguiar, A;

Publicação
ENASE 2013 - Proceedings of the 8th International Conference on Evaluation of Novel Approaches to Software Engineering

Abstract
Code replication has significant drawbacks in system maintenance. Code replication can have its origins in the composition limitations of the language. Several proposals have tried to overcome these limitations. A popular one is traits. However, traits do not support state or visibility control. Static roles are also a way of composing classes that has the benefits of traits and offers state, visibility control and other advantages as block renaming. We compare both approaches on how they are used to compose classes, and how they can be used to reduce code replication caused by composition limitations. As a case study we will compare how both approaches can reduce code replication by detecting and removing code clones within the JHotDraw framework. Results show that roles are capable of reducing a larger amount of replicated code than traits. Copyright © 2013 SCITEPRESS.

2016

Incremental Modular Testing for AOP

Autores
Restivo, A; Aguiar, A; Moreira, A;

Publicação
ICSOFT-PT: PROCEEDINGS OF THE 11TH INTERNATIONAL JOINT CONFERENCE ON SOFTWARE TECHNOLOGIES - VOL. 2

Abstract
By designing systems as sets of modules that can be composed into larger applications, developers unleash a multitude of advantages. The promise of AOP (Aspect-Oriented Programming) is to enable developers to organize crosscutting concerns into separate units of modularity making it easier to accomplish this vision. However, AOP does not allow unit tests to be untangled, which impairs the development of properly tested independent modules. This paper presents a technique that enables developers to encapsulate crosscutting concerns using AOP and still be able to develop reusable unit tests. Our approach uses incremental testing and invasive aspects to modify and adapt tests. The approach was evaluated in a medium scale project with promising results. Without using the proposed technique, due to the presence of invasive aspects, some unit tests would have to be discarded or modified to accommodate the changes made by them. This would have a profound impact on the overall modularity and, in particular, on the reusability of those modules. We will show that this technique enables proper unit tests that can be reused even when coupled with aspect-oriented code.

2017

Engineering Software for the Cloud: Messaging Systems and Logging

Autores
Sousa, TB; Ferreira, HS; Correia, FF; Aguiar, A;

Publicação
Proceedings of the 22nd European Conference on Pattern Languages of Programs, EuroPLoP 2017, Irsee, Germany, July 12-16, 2017

Abstract

2009

An Implementation Model for Agile Business Process Tools

Autores
António Rito Silva; David Martinho; Ademar Aguiar; Nuno Flores; Filipe Figueiredo Correia; Hugo José Ferreira

Publicação
in Proceedings of IWODE09 - International Workshop on Organizational Design and Engineering , Lisboa, Portugal

Abstract

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