MAP REQUIREMENT ENGINEER MODEL (SHIPPING DOMAIN)

The failures in the implementation and use of computer systems are due in numerous studies to a bad comprehension of the needs that these systems attempt to answer. The consequences of this misunderstanding can be critical and needs huge efforts to deal with the situation. So, it is necessary to define methods, technologies and tools to clarify, validate and represent needs relative to the systems on appropriate and structured manner. In this article, we will summarize main characteristics of different requirement modeling approaches such us I star, EKD, KAOS…therefore we choose MAP as the most adequate modeling approach. And we propose a model based on MAP in the Shipping domain. Indeed, our choice of the model Map approach has been based on a comparison of different characteristics and contributions of t e MAP compared to other models. In addition to that we choose the field of shipping, because of the abundance of stakeholders and activities (business process), to present needs in map model. A concrete model of the shipping import service allows us to on the alignment between organizational and operational sight of a company. This rapprochement is fundamental to ensure dynamism imposed to all system to be update facing a rapid and continuous evolution

ROLE ON REQUIREMENTS ENGINEERING PROCESS MODEL

The contribution of the requirements engineering in the success of projects is incontestable and it has been proved, through studies and statistics that succeed or fail a project depends generally on requirements engineering. This domain became the centre of interest of a big number of researchers to present the most adequate model and process to succeed the requirements engineering and so succeed the project. Requirements engineering is done according to a process spread all along the life cycle of the system and that aims to provide methods, technologies and tools allow developing and implanting some computing systems providing the services and the information expected by their users, demanded by their acquirers, and compatible with their functioning environment. Requirements engineering process is executed on three principals steps: First, the requirements elicitation to identify future system needs .Then, the specification and the requirements documentation validated or modified following a discussion between the different actors of the process. The end product which is an outfit of models that allows to take into account the actors’ point of view, represent not only the final specifications but also the intermediate results. This permits having coherent and well structured documents. The validation and verification of the requirement specification is the final step. On this article, after a presentation of principal challenges that requirements engineering face and notably in specification step, we will define the fundamental notion of a role that will allow us to surround a system in all his perspectives : the organizational, the functional and even the intentional, etc. Then, after a study of some models of requirements engineering we will propose a model of process of requirements engineering with focusing on role notation and its participation in the different process steps

Defining The Foundations Of Situational Method Quality

The use of situational methods (SM) is a practice that became widespread for some time in the scientific and the industrial sector. The use of these practices represents many advantages, however, the advent of this approach is due to problems encountered by conventional methods of application in particular contexts. This does not preclude that some points remain to be defined and / or resolve to optimize the effective use of these practices. One of the most important practices is the notion of quality that can ensure proper application of SM. In this paper, we will try to define basics in order to achieve the monitoring of SM quality in the early stages of its setting up to its effective exploitation. In this paper, we will indentify a certain number of evaluation criteria that allow us supervising the construction of a method in terms of quality. Subsequently, we will set up a mechanism for selection to ensure right decision. Finally, we discuss our choice to achieve this quality concep

Natural ontology representation based on NP's properties and semantic relations

International audienceIn the context of the valorization of Tunisian patrimony, we propose an approach to represent semantic properties on contents: heterogeneous information (multimedia) concerning patrimony objects. We develop indexing and information retrieval (IR) processes based on noun phrase (NP) and its semantic representation. These processes use natural language processing (NLP) to take into account the NPs structure organization. In view of this study, the ontology has been proposed to capitalize the concept of knowledge as NP and its semantic relations

Towards an architecture for personalized information retrieval implying the user's profile and votes

International audienceInformation Retrieval is a process made by a user to obtain relevant information which meets his needs using an Information Retrieval System (IRS). However the IRS shows some differences between user relevance and system relevance. These variations are primarily related to the imperfection of the indexing process (approach directly related to the IR) and specially the non consideration of the user profile. This paper presents a study about formalisms proposed in the literature and addresses some reflections to deal with problems arising from this survey, in order to satisfy the final user in Information Retrieval process

From information to decision: information management methodology in decisional process

International audienceA company uses several watch types for different needs. The main idea is to offer a generic watch system that meets various needs and can be adapted to many structures of watch process. We present, in this paper, these various watch process from information management to added-value information. Also, we describe the divergences in the watcher organizations with the knowledge presentations. Finally, we propose the architecture for our generic watch system