Title: A viewpoint based extension of the common warehouse metamodel to support the user's viewpoint approach

Authors: Lamiae Demraoui; Hicham Behja; El Moukhtar Zemmouri; Rachid Ben Abbou

Addresses: SIA Laboratory, Faculté des Sciences et Techniques, USMBA, Fes, Morocco ' Ecole Nationale Supérieure d'Electricité et de Mécanique, Casablanca, Morocco ' Ecole Nationale Supérieure d'Arts et Métiers, Meknes, Morocco ' SIA Laboratory, Faculté des Sciences et Techniques, USMBA, Fes, Morocco

Abstract: Metadata integration and interoperability is still one of the leading problems facing the datawarehouse and the business analysis community. The Common Warehouse Metamodel (CWM) enables interoperability and easy interchange of warehouse and business information metadata between heterogeneous systems. However, a decisional process involves a variety of expert and novice users who manipulate several types of knowledge and know-how, each user exploits the process based on his preferences, needs and objectives. Currently, the CWM metamodel does not allow to model and to keep trace of users' experiences during the exploitation of the whole decisional process. In this paper, we extend the CWM in order to support its different users with a new entity that is viewpoints, which models and keeps trace of user preferences, objectives, and decisions made during the datawarehouse process. Our main objective is the capitalisation of users' experiences to enhance reusability of metadata and coordination between users.

Keywords: CWM; Common Warehouse Metamodel; data warehouse; metadata reusability; viewpoint; metadata integration; interoperability; metamodels; extension; user preferences; decision process; metadata reuse.

DOI: 10.1504/IJMSO.2016.081582

International Journal of Metadata, Semantics and Ontologies, 2016 Vol.11 No.3, pp.137 - 154

Received: 21 May 2016
Accepted: 19 Sep 2016
Published online: 16 Jan 2017 *

Full-text access for editors Full-text access for subscribers Purchase this article Comment on this article