More than forty years have passed since the early attempts to model projects. A large domain of theoretical developments has grown producing a high number of analytical and numerical results, but it seems that the main model is still the same: the concept of project network. This concept has come to represent the two major features underlying the notion of a project: the sequential and the competitive nature of its components, the project's activities. Actually, the sequential property defines the structure of the project and the competitive nature stems from the use of common resources (facilities, goods, equipment, management, etc.) to carry out the different activities. However, significant advances have been achieved in project modelling, allowing the production of much more powerful results: A. the concept of precedence and the description of activities has been generalized to produce a wide range of realistic representation of projects. B. the stochastic study of the features of projects such as the duration and cost of their activities is carried out by several analytical and numerical models, allowing experimental and forecasting analyses. C. the allocation of resources can be now studied for more complex situations and restrictions. D. the financial description of projects is more accurately studied and its optimization is thoroughly pursued. E. the assessment and the evaluation of projects now can be studied within the framework of multicriteria decision theory considering multiple perspectives and supporting the project manager to select the most appropriate compromises between risk, time and expected gains.

Autorentext

Luis Valadares Tavares is Professor of Operational Research and Systems Engineering at IST - Technical University of Lisbon, Portugal, as well as President of IST's Center for Urban and Regional Systems and of the Portuguese eBusiness Society.

Klappentext

The field of project management has developed over the past 40 years; however, the recent increase in computer power has greatly accelerated its theoretical and computational developments. Advanced Models for Project Management is an expository treatment of the recent developments in project modeling. These advances and their treatment in the book are as follows: Chapters 2 and 3 broaden the concept of precedence and the description of activities to produce a wide range of realistic representation of projects. Chapters 4 and 5 explore the stochastic study of project features through several analytical and numerical models - using simulation and risk analysis - which provide experimental and forecasting analyses. Chapter 6 examines the allocation of resources in complex situations and restrictions, and also studies the financial aspects of projects and optimization of financial elements. Chapter 7 assesses and evaluates projects within the framework of multi-criteria decision theory. Chapter 8 concludes with an analysis of new models based on synthetic indicators, helping the operations manager select the most convenient solutions. Hence, the book provides a number of original advances, including: an assessment of the complexity and hardness of a project network; a description of the network's morphology; a new approach to simulate project networks; development of models based on continuous variables to optimize project schedules; and the development of a three-dimension model (MACMODEL) to assess and to evaluate projects and a new synthetic indicator to support the process of scheduling. Finally, several software products are presented that help the project manager to use new tools such as RISKNET and MACMODEL.

Inhalt

1. A Systemic Introduction to Project Management.- 1. Projects and organizations.- 2. Project management and model building.- 3. The general systemic model.- 4. The systemic model of project management.- 2. Basic Models for Project Management.- 1. Project networking.- 2. Sequentiality.- 3. Resources.- 4. Duration.- 5. Optimal scheduling.- 3. Structural Modelling of Projects Networks.- 1. Hardness and complexity.- 2. Modular decomposition.- 3. Network reduction.- 4. Hierarchical levels.- 5. Level adjacency matrix.- 4. Morphology and Simulation of Project Networks.- 1. Morphology.- 2. The generation method.- 3. Comparative analysis.- 4. A test set of generated networks.- 5. Duration of projects.- 1. Modelling.- 2. Experimental results.- 6. Scheduling of Project Networks.- 1. General formulation and typology.- 2. The binary formulation.- 3. The heuristic optimization of the binary model.- 4. The proposed non-linear continuous model.- 5. An application of the proposed model using RISKNET and GAMS-MINOS.- 6. Dynamic Programming.- 7. Risk.- 7. The Assessment and Evaluation of Projects.- 1. Typology.- 2. Financial assessment and evaluation.- 3. Multi-criteria assessment or evaluation.- 4. The MACMODEL.- 8. The Optimal Scheduling of a Project in Terms of Its Duration.- 1. The synthesis of decision variables.- 2. A theorem on the propagation of floats.- 3. The developed stochastic model of the project network.- 4. The results.- 5. Conclusions.- Annex 1 Developed Software.- 1. RISKNET.- 2. MACMODEL.- Annex 2 Main Notation.- References.