A Case-based Data Warehousing Courseware[taliem.ir]

A Case-based Data Warehousing Courseware

ABSTRACT Data warehousing is one of the important approaches for data integration and data preprocessing. The objective of this project is to develop a web-based interactive courseware to help beginner data warehouse designers to reinforce…
Managing Data Source Quality for Data[taliem.ir]

Managing Data Source Quality for Data Warehouse in Manufacturing

Data quality and Data Source Management is one of the key success factors for data warehouse project. Many data warehouse projects fail due to poor quality of the data. It is believed that the problems can be fixed later and because of that, a lot of time will be spent to fix the error. If low quality data fed into the data warehouse system, the result will be not accurate if these data are used in the decision making. Many data warehouse and business intelligence projects failure are due to wrong or low quality data. Therefore this paper will underpins several aspects such as Total Data Quality Management (TDQM), ISO 9001:2008 and Quality Management System (QMS) in order to address data quality problems in the early stage and find out the best procedure to manage the data sources. To find a standard procedure in managing data source base on ISO 9001:2008 standard, process in managing data source is identified and a compared to the ISO 9001:2008 Quality Management System (QMS) requirements. As a result, this process is viewed as a kind of production process and relate to the concepts of quality management known from the manufacturing and service domain. More precisely, a high quality management system in managing data source is proposed. This system is based on ISO 9001:2008 standard and hopes it can help organizations in implementing and operating quality management system. By using ISO 9001:2008 framework to the process of managing data source, this approach will be similar to the manufacturing concept that hasan added advantage when compared to traditional approaches in managing data source.
OPTIMAL DISTRIBUTED DATA WAREHOUSE SYSTEM ARCHITECTURE[taliem.ir]

OPTIMAL DISTRIBUTED DATA WAREHOUSE SYSTEM ARCHITECTURE

Many organizations look for a proper way to make better and faster decisions about their businesses. Data warehouse has unique features such as data mining and ad hoc querying on data collected and integrated from many of the computerized systems used in organization. Data warehouse can be built using a number of architectures. Each one of the architecture has its own advantages and disadvantages. This paper investigates five different data warehouse architectures: centralized data warehouse, independent data mart, dependent data mart, homogeneous distributed data warehouse and heterogeneous distributed data warehouse and subsequently a comparison plan will be described and then all data warehouse architectures mentioned above will be parametrically measured by this plan. Then an optimal architecture is proposed in which we tried to resolve drawbacks in previous distributed architectures to reach to a desired design. It must not be forgotten, however, that a desired design will not suit every situation in every project, but should be customized for particular environments.
Study on Methods of Building Data Warehouse for Multi-Mine Group[taliem.ir]

Study on Methods of Building Data Warehouse for Multi-Mine Group Companies

In the light of the qualities of grouped companies with multi-mine, we presented a proposal for implementing scientific management referred to as center-distributed data warehouse or hybrid data warehouse that local data warehouse is built for each mine enterprise to satisfy the major production management and decision-making while global one extracts information from them. Applying the objected oriented theory, firstly, we divide basic detail data into six aggregated classes of entities, including engineering information, geological information, mineral resources, other equipment and material information, safety and environment information and financial information management. Then, in the view of difficulties and complexity of building data warehouse, it is significant to create data marts for monitoring department-level transaction data with robust labor-division feature. For avoiding appearance of information silo, distributed data warehouses are primarily built and the subsequent extracted data to construct dependent data marts due to business requirements of various departments. Furthermore, we establish the bridges among these distributed data warehouses to achieve data communication, and finally fulfill the entire plan of data warehouse for multi-mine grouped companies.
COMPARISON PLAN FOR DATA[taliem.ir]

COMPARISON PLAN FOR DATA WAREHOUSE SYSTEM ARCHITECTURES

Many organizations look for a proper way to make better and faster decisions about their businesses. Data warehouse has unique features such as data mining and ad hoc querying on data collected and integrated from many of the computerized systems used in organization. Data warehouse can be built using a number of architectures. Each one of the architecture has its own advantages and disadvantages. Thispaper investigates five different data warehouse architectures: centralized data warehouse, independent data mart, dependent data mart, homogeneous distributed data warehouse andheterogeneous distributed data warehouse and subsequently an optimal plan will be described and then all data warehouse architectures mentioned above will be parametrically measured by this method. Finally as case study, a ompany’s problem in their data accessing system is studied and the best architecture is chosen to accommodate the needs of the company’s system.
Flash memory SSD based DBMS for data warehouses and data mart[taliem.ir]

Flash Memory SSD based DBMS for Data Warehouses and Data Marts

Flash memory based high capacity SSDs open the doors for large enterprise applications for better performance and high reliability. Flash memory hardware characteristics not allow disk based schemes implication directly. For employing such schemes, we need to revise them on some level to make them effective for flash media storage. In this paper, we aim to implement DBMS on flash memory SSD based large enterprise applications. This paper presents the relevancy of SSD characteristics with storage features of data warehouses and data marts and proposes the architecture of data storage for variable-length records in and data retrieval using virtual sequential access method by multilevel indexing from flash memory based SSDs for such applications. We prove less overhead with high reliability, and more throughput compare to hard disk drives.
بررسي آزمايشگاهي تأثير زاويه جت ريزشي كالورت بر روي ابعاد حفره آبشستگي با[taliem.ir]

بررسي آزمايشگاهي تأثير زاويه جت ريزشي كالورت بر روي ابعاد حفره آبشستگي با ارتفاع ريزش ثابت

چکیده از بين عوامل مختلف مؤثر در پديده آبشستگي در پايين دست جتهاي ريزشي كالورت، زاويه ريزش جت كمتر در تحقيقات مورد توجه قرار گرفته است، لذا در اين تحقيق اثر زاويه ريزش كالورت روي پارامترهاي حفره آبشستگي مورد بررسي قرار ميگيرد. جت آب كه از لوله ا…
تصميم گيري در شرايط عدم قطعيت با استفاده از نظريه مجموعه مبنا[taliem.ir]

تصميم گيري در شرايط عدم قطعيت با استفاده از نظريه مجموعه مبنا

چکیده عدم قطعيت مفهومي است كه دركليه علوم مهندسي و به ويژه مهندسي عمران و علم ژئوتكنيك با آن مواجه هستيم و تصميم گيري مناسب در مواردي كه عدم قطعيت وجود دارد همواره مي تواند از اتلاف وقت و هزينه هاي سنگين و غير ضروري كه در پروژه هاي بزرگ بسي…
تصميم گيري در شرايط عدم قطعيت با استفاده از نظريه مجموعه مبنا[taliem.ir]

آموزش حقوق و دستمزد

فیلم آموزش کاربردی سیستم حقوق دستمزد با نرم افزار همکاران سیستم ارایه شده است. این محصول فوق العاده به شما این امکان را می دهد که به صورت کاملا کاربری با حقوق و دستمزد آشنا شوید و بتوانید در محیط کاری ، بعد از مشاهده ی کامل این فیلم شروع به کار کنید.
تصميم گيري در شرايط عدم قطعيت با استفاده از نظريه مجموعه مبنا[taliem.ir]

کتاب شبکه های اتصال گرا

عرضه ی کتاب شبکه های اتصال گرا از سایت تعلیم به صورت فیزیکی، به تمام نقاط کشور ارسال خواهد شد.از جمله ویژگی های این کتاب اولین ترجمه به زبان فارسی با کیفیت کاملا تخصصی در حوزه شبکه می باشد.