University of Twente Student Theses
Enhancing transparency in land transaction process by reference architecture for workflow management system
Phuong, Tran Hai (2012) Enhancing transparency in land transaction process by reference architecture for workflow management system.
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| Abstract: | Transparency in the field of land administration is growing of interest and has increased attention at national and international levels especially in delivery of services (such as land transaction) for the citizens. The literature study suggests that GI Science including Workflow Management Systems (WfMS) contributes a lot for the efficient and transparent land transaction system. The transaction concept of atomicity, consistency, isolation and durability (ACID) are very well known within the database theory and also in practice, but the transparency issues such as structural and functional aspects are remained to be studied for implementation within a WfMS. The literature also indicates that there are already some research studies on reference architecture (RA) for WfMS purely from technical perspectives, but there is no explicit indication that directly deals transparency issues in land transaction. The main aim of this research is to develop reference architecture for land transaction WfMS that incorporates transparency characteristics. In this research, there are four main steps as research method combining literature study, case study, design and implementation. First step is to derive transparency requirements using the literature studies on transparency concepts and land transaction. Second step consists of the theoretical studies on reference architecture to see how these requirements are incorporated. In order to learn and experience how these requirements are in practice, detail studies on the actual workflows of land transaction (as a case study) in Netherland Cadastre are conducted by interviewing the senior experts of Central and Local Cadastral Offices, and other offices of Notary, Real estate and Municipality. Then, on the basis of the results of case study, reference architecture for land transaction is designed and supporting architecture is also developed for implementation. Last step is to verify RA by implementing WfMS using ArcGIS Workflow Manager, ArcSDE and PostgreSQL. The initial result shows that there are three main aspects namely structural, functional and transactional properties requirements in land transaction. The study indicates ACID properties alone are not sufficient for the concurrent long transaction process. While studying WfMS in practice, case study indicates both structural and functional aspects are important requirements for organizing workflows to avoid any conflicts. GI Science provides new approach (i.e. versioning database for different actors/users) in implementing a WfMS. Several design elements were introduced in RA for land transaction to embrace these transparency requirements in three layers of architecture a) client layer, b) workflow sever including version manager, and c) database layer. Supporting implementation architecture is developed showing business processes (work engines) and actors in addition of other elements specified in RA. Workflows are then designed for generic land transaction and implemented in the client server environment. The experience on executing WfMS shows components such as administration and monitoring, and workflow engine were very well executed and can enhance transparency in delivery and monitoring of land transaction services provided, while customization is required for good interaction with the clients. In conclusion, RA enhances transparency in land transaction, but it depends on the implementation architecture and its environment. Key Words: land transaction, reference architecture, architecture, workflow management system, transparency |
| Item Type: | Essay (Master) |
| Faculty: | ITC: Faculty of Geo-information Science and Earth Observation |
| Programme: | Geoinformation Science and Earth Observation MSc (75014) |
| Link to this item: | https://purl.utwente.nl/essays/93615 |
| Export this item as: | BibTeX EndNote HTML Citation Reference Manager |
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