Database Complexity Metrics
نویسندگان
چکیده
Metrics are useful mechanisms for improving the quality of soji`vvare products and also for determim.ng the best ways ro help practitioners and researchers. UnfortunateLy, almost all the metrics put forward focus on program characteristz`cs disregardz.ng databases. However, databases are becomz`ng more compLex, and it is necessary to measure schemata complexity in order to understand, monz.tor, control, predict and z.mprove database development and ma"zntenance projects. In fizz's paper, we will present dierent measures in order to measure the complexz-ty that aJTects the maintainabz"Iz.ty of the relational, object-relatz`onal and active database schemas. However it is not enough to propose the metrics, a formaL validatz.on is also needed for know!ng thez.r mathematz.caL characteristics. We wz.II present the two main tendencz.es in metrics formal validation, axz`omatz.c approaches and measurement theory" However, research !nto sofiware measurement is needed from a theoretz`caL but also jrom a practical point of view ( (121). For thz`s reason, we wz`LL also present some of the experz ments that we have developedfor the dijferent ia`nds of databases.
منابع مشابه
Evaluating the Correlation Between Pollination Ecosystem Service and Landscape Pattern metrics (Case Study: Qazvin Province)
Pollination is an ecological service with high economic values related to human and ecological wellbeing. This study aims to evaluate the correlation between landscape complexity and pollination service (bee) in Qazvin province at the landscape scale. Landscape pattern metrics (Number of Patches (NP), Patch Richness (PR), Edge Density (ED), and Shannon Index (H)), as a proxy of landscape comple...
متن کاملSyntactic Complexity of Russian Unified State Exam Texts in English: A Study on Reliability and Validity
In this study we analyze texts used in Russian Unified State Exam on English language. Texts that formed small research corpora were retrieved from 2 resources: official USE database as a reference point, and popular website used by pupils for USE training “Neznaika” (https://neznaika.pro/). The size of two corpora is balanced: USE has 11934 tokens and “Neznaika” - 11918 tokens. We share Biber’...
متن کاملA Case Study on the Transformation from Proprietary to Open Source Software
This paper presents an extensive analysis of static software quality metrics changes for an open source enterprise database management system (DBMS), as the software was moved from the proprietary into open source software development environment. The software quality metrics of special interest for the research are cyclomatic complexity, effective lines of code, the degree of system modularity...
متن کاملLocal Standard Deviation Based Image Quality Metrics for JPEG Compressed Images
In this paper, we address the Full-Reference (FR) Image Quality Metric (IQM) to assess the quality of JPEG-coded images and we present a new effective and efficient IQA model, called Local Standard Deviation Based Image Quality (LSDBIQ). The approach is based on the comparison of the local standard deviation of two images. The proposed metrics is tested on four well-known databases available in...
متن کاملA Quantitative Evaluation of Maintainability of Software Architecture Styles
Proper decisions play a crucial role in any software architecture design process. An important decision of design stage is the selection of a suitable software architecture style. Lack of investigation on the quantitative impact of architecture styles on software quality attributes is the main problem in using such styles. Consequently, the use of architecture styles in designing is based on th...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2001