Publications de Lam Son Lê | EPFL Graph Search

A Novel Approach to Modeling Enterprise Services Leveraging Object Cloning and Multilevel Classification

Object-oriented modeling is concerned with capturing common properties of objects. The dominant thinking in this realm is to classify objects that share certain properties into what is called a class, which in turn enables us to instantiate additional obje ...

IEEE2019

Hierarchy-oriented modeling of enterprise architecture using reference-model of open distributed processing

Alain Wegmann, Lam Son Lê

Modeling Enterprise Architecture (EA) requires the representation of multiple views for an enterprise. This could be done by a team of stakeholders that essentially have different backgrounds. One way to do this is to structure the model into hierarchical ...

2013

SeamCAD: a hierarchy-oriented modeling language and a computer-aided tool for entreprise architecture

Lam Son Lê

Modeling Enterprise Architecture requires representing multiple diagrams of an enterprise, which typically shows the multiples business entities, IT systems, even software components and the services they offer. This could be done by a team of stakeholders ...

EPFL2008

Business-IT Alignment with SEAM for Enterprise Architecture

Gil Regev, Alain Wegmann, Lam Son Lê, Irina Rychkova, José Diego de la Cruz Garcia

To align an IT system with an organization’s needs, it is necessary to understand the organization’s position within its environment a well as its internals. In SEAM for Enterprise Architecture the organization is considered as a hierarchy of systems that ...

IEEE2007

Teaching Enterprise and Service-Oriented Architecture in Practice

Gil Regev, Alain Wegmann, Lam Son Lê, Irina Rychkova, José Diego de la Cruz Garcia

Many companies expect their IT developers to understand their business strategy and to specify IT systems that will impact favorably the execution of their business strategy. Enterprise Architecture (EA) and Service-Oriented Architecture (SOA) address thes ...

2007

An Example of a Hierarchical System Model Using SEAM and its Formalization in Alloy

Gil Regev, Alain Wegmann, Lam Son Lê, Irina Rychkova, José Diego de la Cruz Garcia

SEAM is an enterprise architecture method based on RM-ODP part 2. In this paper, we present an example of a SEAM hierarchical model where the behavioral part is formalized in Alloy. We introduce four kinds of actions and their relationships to properties t ...

2007

From Business to IT with SEAM: J2EE Pet Store Example

Alain Wegmann, Gil Regev, Lam Son Lê, Irina Rychkova

Business and IT alignment demands clear traceability between the applications to be developed and the business requirements. SEAM is a systemic visual approach for modeling systems, including information systems and organizations. This paper illustrates ho ...

2007

Enterprise modeling using the foundation concepts of the RM-ODP ISO/ITU standard

Alain Wegmann, Gil Regev, Lam Son Lê

2007

Validation of Visual Contracts for Services

Alain Wegmann, Lam Son Lê, José Diego de la Cruz Garcia

Visual modeling languages have specialized diagrams to represent behavior and concepts. This diagram specialization has drawbacks like the dif-ficulty to represent the effects of actions. We claim that visual contracts can de-scribe actions in a more compl ...

2006

Implementation of a Modeling Tool Using Alloy as Meta-Modeling Language and CrocoPat as Validation Tool

Alain Wegmann, Lam Son Lê, Dirk Thilo Beyer, Lotfi Hussami

The context of our work is a project that focuses on methods and tools for modeling enterprise architectures. An enterprise architecture model represents the structure of an enterprise across multiple levels, from the markets in which it operates down to t ...

2006