Master Thesis Computer Science Thesis no: MCS-2010-23 June 2010

Principles for Distributed Databases in Telecom Environment

Imran Ashraf Amir Shahzed Khokhar

School of Computing School of Computing Blekinge Institute of Technology Blekinge Institute of Technology Box 520520 Box SE – 372372 Ronneby SE – 25 25 Ronneby Sweden Sweden

This thesis is submitted to the School of Computing at Blekinge Institute of Technology in partial fulfillment of the requirements for the degree of Master of Science in Computer Science. The thesis is equivalent to 20 weeks of full time studies.

Contact Information: Author(s): Imran Ashraf Address: c/o Gulfam Abbas, Älgbacken 4 LGH 081, 37234 Ronneby, Sweden E-mail: im_qamar@yahoo.com Phone: +46 700746734 Amir Shahzed Khokhar Address: c/o Gulfam Abbas, Älgbacken 4 LGH 081, 37234 Ronneby, Sweden E-mail: amir_ask@yahoo.com Phone: +46 760811926 University advisor(s): Professor Lars Lundbarg School of Computing
Blekinge Institute of Technology, Sweden

External advisor(s):
Magnus Vigerlöf

Ericsson AB Address: Ölandsgatan 1, 371 23 Karlskrona Phone: +46 10 7140404

School of Computing Blekinge Institute of Technology Box 520 SE – 372 25 Ronneby Sweden

Internet Phone Fax

: www.bth.se/com : +46 457 38 50 00 : + 46 457 102 45

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Abstract
Centralized databases are becoming bottleneck for organizations that are physically distributed and access data remotely. Data management is easy in centralized databases. However, it carries high communication cost and most importantly high response time. The concept of distributing the data over various locations is very attractive for such organizations. In such cases the database is fragmented into fragments and distributed to the locations where it is needed. This kind of distribution provides local control of data and the data access is also very fast in such databases.