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Jumat, 09 November 2007

PhD position on Graph-Based Abstract Interpretation at the University of Twente

PhD on Graph-Based Abstract Interpretation
PhD position at the University of Twente on Graph-Based Abstract Interpretation To carry out the recently awarded Dutch (NWO) research project entitled "Graphs for Abstract Interpretation of Languages" (GRAIL), we are offering a position for a PhD student (fully funded) for a period of four years.

Deadline for applications: December 15th, 2007

Project start date: January 2008, or as soon thereafter as possible

The Context The project takes place at the Formal Methods and Tools chair of the University of Twente. This chair is part of the Department of Computer Science, one of the largest academic departments for computer science in the Netherlands. Project leader is Dr. Arend Rensink. The Project Graphs for Abstract Interpretation of Languages (GRAIL) As more and more systems in our everyday environment contain major software parts, and we are depending on such systems more and more (we are counting on them), the importance of the dependability of the embedded software is increasing.

Unfortunately, there are still very few generally applicable methods for software verification, i.e., the ensurance of its correct functioning under all circumstances. Reasons for this are, one the one hand, the degree of expertise necessary for existing verification methods, and on the other, their poor embedding in the average software development trajectory. An important practical objection is, moreover, that current verification methods typically assume the existence of a sufficiently detailed and precise model of system behavior.

In practice such models hardly ever exist, and the time and expertise to construct them is missing. Examples of methods that are being used widely in practice are therefore typing and testing, neither of which necessarily depends on the pre-existence of models.


In this project we investigate a new way of automatically verifying software on the basis of code, without assuming a predefined model. The technique used is static analysis, a general principle that encompasses typing; the new aspect is the use of graph transformations to capture the effect of the software.

Graphs offer a natural model for the behaviour of dynamic software systems, and at the same time offer the basis for a generic form of static analysis, which can be driven by the properties to be verified.
The full project proposal can be found at: http://www.cs.utwente.nl/~rensink/projects/grail.pdf

Qualifications You should have a MSc or equivalent degree in computer science or a closely related area, or be able to show that you will receive the degree this year (2007). Familiarity with formal verification, abstract interpretation and/or and graph transformations is considered an advantage. You are expected to cooperate in an internationally oriented research environment. Good English speaking and writing skills are demanded, as well as the willingness to learn Dutch.

You will enroll in the PhD programme of the Dutch Institute for Programming Research and Algorithmics (IPA). Offer The selected candidate will be appointed for a period of 4 years with a gross salary starting at ¤ 1956 per month (first year) and reaching EUR 2502 per month (final year), plus an 8% holiday allowance and other benefits.

Information and Application
You can obtain further information about the positions by enquiring from:
Dr.ir. Arend Rensink,
mailto:rensink@cs.utwente.nl,
tel: +31 (0)53 489 4862
fax: +31 (0)53 489 3247

If you are interested, please send an application by email to the above address, including:
- A cover letter stating your *specific* interest in the position, indicating also your motivation and qualifications for joining the project. (In the absence of such a cover letter your application will be rejected without notification.)
- A full curriculum vitae, including the subject and supervisor of your graduate thesis.
- Letters of recommendation or references of at least two scientific staff members.

All applications must be received ** at or before December 15th 2007 ** mention vacancy nr. 07/183.

PhD position in cost estimation modeling for cross-organizational ERP projects University of Twente

Ph.D. Position in cost estimation modeling for cross-organizational ERP projects.
Job opening number: 07/182

The faculty of Electrical Engineering, Mathematics and Computer Science from the University of Twente educates, and conducts research with approximately 2000 students including 300 PhD-students.
The faculty is also responsible for a large volume of service education for programmes of other faculties. The faculty has approximately 300 permanent staff.

The faculty of EEMCS conducts BSc-programmes in Electrical Engineering, Applied Mathematics, Computer Science and Business Information Systems and MSc-programmes in Electrical Engineering, Mechatronics, Applied Mathematics, Business Information Technology, Computer Science, Telematics, Human Media Interaction en Embedded Systems and is partner in various programmes of other faculties.


We have a vacancy in a Ph.D. Position in cost estimation modeling for cross-organizational ERP projects
Job opening number: 07/182

The University of Twente invites applications for a Ph.D. position in the COSMOS project (http://is.ewi.utwente.nl/research/requirements/cosmos.doc/index.html), a cooperation between the department of Business Information System (http://www.bbt.utwente.nl/iscm) chaired by Prof. Jos van Hillegersberg (http://www.mb.utwente.nl/iscm/staff/academic/Hillegersberg/) and the Information Systems group chaired by prof. Roel Wieringa (http://www.cs.utwente.nl/~roelw).

The Ph.D. student will be employed in the Information Systems group. In this project we will investigate, compare, and integrate functionality-driven approaches and economics-driven approaches to the problem of estimating cost for cross-organizational Enterprise Resource Planning (ERP) implementations. Specifically, the COSMOS project will seek to answer to the following key questions:

1. What are the essential cost drivers to be considered for inclusion in cost estimation models for a set of interdependent ERP projects carried out in cross-organizational settings?
2. How are ERP costs and benefits shared among the actors in a value network?
3. What is the relationship between organizational factors (e.g. the degree of project management control) and the accuracy of ERP project estimates?
4. How to measure size of cross-organizational ERP projects based on functionality
5. How to assess the goodness-of-fit of cost models in real life cross-organizational settings?
6. How elements of real-options thinking and portfolio management concepts could be incorporated into existing ERP effort estimation practices?
7. How to incorporate estimation activities into the requirements engineering process for cross-organizational ERP?

We will investigate these questions by a combination of quantitative research, case study research, action research, and qualitative research methods with our industrial partners. The successful candidate will be an integral part of a multidisciplinary research team to deliver:
(i) a multidimensional size and effort estimation framework for cost estimation of networked ERP implementation projects,
(ii) a requirements engineering approach to networked ERP projects that incorporates cost estimation and risk assessment activities, and
(iii) a success model that will help network partners visualize and reason about what will distinguish a successful networked ERP project from a failed one.

The Ph.D. student will be actively involved in case studies with partners from industry to assess current ERP cost estimation practices, re-define and improve existing approaches, validate proposed methods, and define a cost-and-risk-driven requirements engineering process for networked ERP projects.

We are looking for the following qualifications:
- A Master Degree in information systems or a comparable discipline such as software engineering, software metrics, or computer science;
- good communication and interpersonal skills. The main task of the PhD student will be to carry out collaborative research at the interface between theory and industry practice, but he/she will be given the opportunity to acquire some teaching experience at the undergraduate and graduate level.
- Strong analytical and problem solving skills.
- Ability to take actions that align objectives, tasks and resources with project priorities and drive issues to closure despite setbacks.
- Exhibit high levels of energy, enthusiasm and determination. Productively challenges the status quo and actively searches for solutions beyond traditional boundaries.
- Strong work ethic; capable of working independently and as part of a team in a fast-paced dynamic environment. Previous industry experience in ERP process engineering or in software metrics would be an asset.
- English language proficiency in writing and oral is required.
- Dutch language is an asset.

We offer:
- A four-year appointment at an interesting temporary research position in a dynamic and international environment.
- A salary starting at ¤1956 gross per month in the first year and grows up to ¤2502 gross per month in the fourth year.
- Support in getting involved in Dutch language courses.

Applicants should submit:
- a curriculum vitae including a list of courses you have followed (with grades),
- a cover letter with a statement of motivation and research interests,
- names and contact details of two suggested referees by e-mail to is_jobs@cs.utwente.nl.

Please indicate the job opening number in the subject heading.

To ensure consideration, interested individuals should send an application four weeks after posting this advertisement (that is, by Dec 1, 2007).

The University of Twente is strongly committed to diversity within its community. All qualified candidates are encouraged to apply. The University is an equal opportunities employer and welcomes applications from everyone who may contribute to further diversification of ideas.

Applicants near completion of their Master degree will also be considered.
More information can be obtained from
Dr. Maya Daneva
email: m.daneva@utwente.nl,
phone +31 53 489 2889