Object-oriented system development is gaining wide attention both in research environments and in industry. A severe problem encountered, however, is the quickly increasing complexity of such systems and the lack of adequate criteria and guidelines for \good" designs. To cope with this problem, it is imperative to better understand the properties and characteristics of object-oriented systems. ...

In this paper we will compare and contrast some of the newer methods with some of the established methods in the field of object-oriented software engineering. The methods reviewed are Solution-Based Modelling, Business Object Notation and Object Behaviour Analysis. The new methods offer new solutions and ideas to issues such as object identification from scenarios, traceability supporting tech...

This paper presents a pragmatic and simple approach to developing object-oriented applications. The approach is based on two fundamental principles of object-oriented software: objects and their cooperation. Process descriptions from collecting customer requirements to implementing code, as well as modelling notations are presented. Commercial object-oriented methods are complicated and often h...

Many object-oriented systems, such as CASE tools manipulated by GUIs and Java Servlet applications responding to requests from internet clients, are driven by external inputs. We call such systems objectoriented effect systems where effects in runtime system states implement features correctly. Effects comprehension is thus an integral part in feature comprehension for object-oriented effect sy...

This paper describes the object-oriented design and implementation of a family of stream-oriented le systems under UNIX and under an object-oriented operating system called Choices. A class hierarchy provides an object-oriented taxonomy of the algorithms and data structures used in the design of this family. The family includes the System V le system, the 4.2 BSD le system, and the MS-DOS le sy...

In this paper we introduce an object-oriented coordination language for multi-agents systems. The beliefs and reasoning capabilities of an agent are specified in terms of a corresponding abstract data type. Agents interact via an extension of the usual object-oriented message passing mechanism. This extension provides the autonomy that is required of agents but which objects in most object-orie...

A problem with object-oriented simulation models is that internal model states are hidden and cannot be monitored easily. Object-oriented models are essentially black-box models. This article describes a method to expose the internal states of an object-oriented simulation model. Exposure of the states is achieved though application of the Observer software pattern in the form of data sources. ...

This empirical research was undertaken as part of a multi method programme of research to investigate unsupported claims made of object oriented technology A series of subject based laboratory experiments including an internal replication tested the e ect of inheritance depth on the maintainability of object oriented software Subjects were timed performing identical maintenance tasks on object ...