It is common to find that the definition or common usage of a data modelling language causes there to be restrictions placed on the evolution of data values that are associated with schemas expressed in that modelling language. This paper terms these restrictions temporal constraints, and defines three types of temporal constraint which are argued to be useful modelling concepts, capturing impo...

We briefly describe the design of a course on “Systems Analysis and Process Innovation”, focusing especially on its project assignments. Students are introduced to process modeling and data modeling, followed by i* and Value Network modeling. In their project assignments, students apply these modeling techniques to real organizational settings to analyze an as-is situation and to explore to-be ...

This paper proposes an approach for data modelling in five dimensions. Apart from three dimensions for geometrical representation and a fourth dimension for time, we identify scale as fifth dimensional characteristic. Considering scale as an extra dimension of geographic information, fully integrated with the other dimensions, is new. Through a formal definition of geographic data in a conceptu...

The choice of which vocabulary to reuse when modeling and publishing Linked Open Data (LOD) is far from trivial. There is no study that investigates the different strategies of reusing vocabularies for LOD modeling and publishing. In this paper, we present the results of a survey with 79 participants that examines the most preferred vocabulary reuse strategies of LOD modeling. The participants,...

YANG -the Network Configuration Protocol (NETCONF) Data Modeling Language -supports modeling of a tree of data elements that represent the configuration and runtime status of a particular network element managed via NETCONF. This memo suggests enhancing YANG with supplementary modeling features and language abstractions with the aim to improve the model extensibility and reuse.

This artifact is based on IceDust2, a data modeling language with derived values. The provided package is designed to support the claims of the companion paper: in particular, it allows users to compile and run IceDust2 specifications. Instructions for building the IceDust2 compiler from source in Spoofax are also provided. 1998 ACM Subject Classification D.3.2 Data-flow languages

Object oriented analysis OOA which is the nowadays popular approach to conceptual modeling has evolved from object oriented programming OOP and semantic data modeling SM Inheritance is one of the most important concepts of OOP Therefore an inheri tance concept suitable for OOA is needed In this paper we argue that recent approaches for semantics of inheritance in OOA are not adequate We propose...

Science and technology in Brazil are areas that have few available resources and many times these scarce resources are badly used. The data warehouse is a tool that can make possible a better distribution of these resources. In this article are considered some issues in the development of a data warehouse for Science & Technology management. The paper describes the necessity of a supporting sys...

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