Schema Integration Methodology and Its Verification by Use of Information Capacity
نویسندگان
چکیده
In the past decade a considerable amount of research has been done on schema integration and translation. Until recently, most of the work has largely neglected the proof of correctness in transforming schemas. Anomalies could arise due to errors in the transformation rules. Invalid transformations can produce incomplete or inconsistent pictures that may cause damage to organisations. In this paper, we present a Schema Integration Methodology, with proof of correctness, based on the use of Information Capacity. We present our methodology as a set of steps for schema translation tasks, verify their correctness according to operational goals and derive the information capacity of the original schema in its pre-transformed and post-transformed conditions. If the information capacity of the original schema is equivalent to or dominated by the transformed schema, then information is preserved after integration. Our correctness criteria is based on the assumption that these goal(s) could be practically pursued in an operational sense and are not solely mathematical proofs.
منابع مشابه
طراحی و ارزیابی روش کدگذاری ترکیبی برای کانال پوششی زمانبندیدار در شبکه اینترنت
Covert channel means communicating information through covering of overt and authorized channel in a manner that existence of channel to be hidden. In network covert timing channels that use timing features of transmission packets to modulating covert information, the appropriate encoding schema is very important. In this paper, a hybrid encoding schema proposed through combining "the inter-pac...
متن کاملUse of the Shearlet Transform and Transfer Learning in Offline Handwritten Signature Verification and Recognition
Despite the growing growth of technology, handwritten signature has been selected as the first option between biometrics by users. In this paper, a new methodology for offline handwritten signature verification and recognition based on the Shearlet transform and transfer learning is proposed. Since, a large percentage of handwritten signatures are composed of curves and the performance of a sig...
متن کاملThe Use of Information Capacity in Schema Integration and Translation
In this paper, we carefully explore the assumptions behind using information capacity equivalence as a measure of correctness for judging transformed schemas in schema integration and translation methodologies. We present a classification of common integration and translation tasks based on their operational goals and derive from them the relative information capacity requirements of the origin...
متن کاملSchema Integration Methodology and Toolkit for Heterogeneous and Distributed Geographic Databases
Schema integration is one of the most difficult issues in the heterogeneous and distributed geographic database systems (GDSs). As the use of spatial information in various application areas becomes increasingly popular, the integration of geographic information has become a crucial task for decision makers. Most existing schema integration techniques described in the database literature, howev...
متن کاملDatabase Schema Integration Process – a Methodology and Aspects of Its Applying
The paper considers an original approach to the process of integration of complex database schemas. Apart from the proposed theoretical model of the approach, we also developed a CASE tool, named IIS*Case (Integrated Information Systems*Case, R.6.0), which enables its practical application. The basis of the approach aimed at designing and integration of database schemas and the ways of using II...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Inf. Syst.
دوره 24 شماره
صفحات -
تاریخ انتشار 1999