Object-oriented patterns

Coad, Peter

doi:10.1145/130994.131006

Cited by 258 publications

(143 citation statements)

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“…According to Coad and Yourdon, a design principle is one of the four essential traits of good object-oriented design, i.e., low coupling, high cohesion, moderate complexity, and proper encapsulation [7]. As we distinguish different levels of design principles we call this type of principles coarse-grained design principles [5].…”

Section: Design Principle Viewmentioning

confidence: 99%

Measuring, Assessing and Improving Software Quality based on Object-Oriented Design Principles

Plösch

Bräuer

Körner

et al. 2016

Open Computer Science

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Good object-oriented design is crucial for a successful software product. Metric-based approaches and the identification of design smells are established concepts for identifying design flaws and deriving design improvements thereof. Nevertheless, metrics are difficult to use for improvements as they provide only weak guidance and are difficult to interpret. Thus, this paper proposes a novel design quality model (DQM) based on fundamental object-oriented design principles and best practices. In course of discussing DQM, the paper provides a contribution in three directions: (1) it shows how to measure design principles automatically, (2) then the measuring result is used to assess the degree of fulfilling object-oriented design principles, (3) and finally design improvements of identified design flaws in object-oriented software are derived. Additionally, the paper provides an overview of the research area by explaining terms used to describe designrelated aspects and by depicting the result of a survey on the importance of object-oriented design principles. The underlying concepts of the DQM are explained before it is applied on two open-source projects in the format of a case study. The qualitative discussion of its application shows the advantages of the automated design assessment that can be used for guiding design improvements.

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Section: Design Principle Viewmentioning

confidence: 99%

Measuring, Assessing and Improving Software Quality based on Object-Oriented Design Principles

Plösch

Bräuer

Körner

et al. 2016

Open Computer Science

View full text Add to dashboard Cite

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“…In both software engineering and HCI, design patterns are often derived from a reference to existing design solutions and hence are the product of observation, trial and error, and experience [5,7]. In CSCW, finding patterns has also been described as a process that relies on extensive observation of how people use tools in context.…”

Section: Uncovering Design Patternsmentioning

confidence: 99%

Activity Theory as a Tool for Identifying Design Patterns in Cross-Modal Collaborative Interaction

Metatla

Bryan-Kinns

Stockman

et al. 2013

Lecture Notes in Computer Science

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Abstract. This paper examines the question of how to uncover patterns from the process of designing cross-modal collaborative systems. We describe how we use activity patterns as an approach to guide this process and discuss its potential as a practical method for developing design patterns. IntroductionA key challenge in the design of interactive systems is how to leverage existing design knowledge. Design patterns play a role in addressing this challenge by capturing and communicating reusable design knowledge on how to map requirements to design solutions. In the field of human-computer interaction (HCI), design patterns have received increasing attention and sets of patterns have been published for a variety of application domains (e.g. [4,14]). Similarly, a number of studies within the area of computer-supported cooperative work (CSCW) have addressed the question of how to use design patterns to document successful design knowledge, some of which have generated patterns that can be readily employed to develop practical solutions [2]. We are interested in the design of interactive systems that support collaboration between individuals who use different sets of modalities to interact with each other. Such differences can arise because of permanent sensory impairments or due to the capabilities of the technology used by each collaborator and the context of their interactions with it; we refer to group interactions in these settings as cross-modal collaboration. In this paper, we focus on exploring the process by which design patterns for cross-modal collaboration can be identified. We describe how we used an approach based on activity patterns [10] to uncover design patterns from two phases of a typical design process. First, we exemplify the application of activity patterns by reflecting on the evaluation phase of a cross-modal tool that supports collaboration between visually impaired and sighted coworkers. Second, we outline how activity patterns can be used to capture insights from a participatory design workshop that we conducted with visually impaired audio producers and musicians in order to understand their work process and gather requirements about how to design technology that could contribute towards increasing their inclusion in their workplace.

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“…We considered that Booch [3] and OOSE [15] rely over-much on expert developer intuition in the identification of object concepts and subsystems. OMT [20], Coad-Yourdon [6,7] and Shlaer-Mellor [22] all have a data-driven foundation that is amenable to systematic entity-relationship modelling (ERM), which elevates data dependency as its system modularisation principle. The deliverable of ERM is a set of normalised data files (equiv.…”

Section: Introductionmentioning

confidence: 99%

Design Patterns as Litmus Paper to Test the Strength of Object-Oriented Methods

1998

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This paper shows how Design Patterns may be used to reveal properties of object-oriented development methods. The responsibility-driven and event-driven design methods are contrasted in the way they transform and layer systems. Each method elevates a different modularising principle: contract minimisation and existence dependency. Different design patterns, such as Mediator, Chain of Responsibility, Template Method, Command and Composite emerge for each method, illustrating the particular bias and the different design decisions each makes.

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Object-oriented patterns

Cited by 258 publications

References 1 publication

Measuring, Assessing and Improving Software Quality based on Object-Oriented Design Principles

Measuring, Assessing and Improving Software Quality based on Object-Oriented Design Principles

Activity Theory as a Tool for Identifying Design Patterns in Cross-Modal Collaborative Interaction

Design Patterns as Litmus Paper to Test the Strength of Object-Oriented Methods

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