Developing a project architecture and evaluating the Enterprise Architecture initiative at Tata Steel

Organizations have become more aware of Enterprise Architecture and the need to work under architecture. Tata Steel assumes that Enterprise Architecture can help them realizing the benefits that come from working with Enterprise Architecture as presented in literature. This thesis consists out of two parts. The first part is about the process of developing a business and application architecture, and the development of the architecture itself. An ‘as-is’ project architecture, which represents the system landscape and business processes at the start of the project, and a ‘to-be’ project architecture, which represents how the system landscape and business processes should look when the project finishes, was developed. The goal of the project for which the architecture was developed is to change the system landscape in such a way that it can support the newly developed distribution model. The second part of the thesis focuses on research questions about Enterprise Architecture. The most important goal of this thesis is to describe how Enterprise Architecture can be implemented in an organization like Tata Steel. The Enterprise Architecture approach that Tata has chosen is described, evaluated and improvements are suggested. The governance of architectural models is discussed and the value of architecture is discussed. All while using the experience gotten from creating the ‘as-is’ and ‘to-be’ project architectures.Computer Science Information ArchitectureWeb Information Systems GroupElectrical Engineering, Mathematics and Computer Scienc

Bepaling van capaciteitseisen in ontkoppelde temporele netwerken

Software TechnologyElectrical Engineering, Mathematics and Computer Scienc

Determining Resource Needs of Autonomous Agents in Decoupled Plans

At airports, the turnaround process of aircraft is crucial for a timely and efficient handling of air traffic. During this process, a number of services need to be provided during the time the aircraft is at the gate: e.g., de-boarding, cleaning, catering, fuelling, and boarding. These services are provided by different service providers (agents), who have to coordinate their activities in order to respect the turnaround timeslot, the required service times and existing regulations. These temporal dependencies between services can be planned, but if disruptions occur re-planning is complex and often impossible. For this reason, in previous research a methodology and prototype have been devised to simplify the planning process by decoupling the overall plan into local plans for each agent. This paper builds on this research and introduces an important extension to the existing methodology and prototype: a new algorithm is introduced to take into account the minimal number of resources each service provider will need to accomplish its task.Computer ScienceElectrical Engineering, Mathematics and Computer Scienc