Assignment 1 of Database (MySQL & Sqlite3) Aey Unthika
● Map your ER diagram to relations
● Create relations in sqlite
● Insert data ( >4GB? )
● Query ( > 30 sec?)
● Use the same data for your selected DBMS
Online Loan Application & Its Verification SystemSoban Ahmad
In This report we included the Online Loan Application & its verification, Detailed about the Requirements & Explain it with Modelling Including Contextual, UML, Sequence, class, state Machine & Activity Diagram.
Assignment 1 of Database (MySQL & Sqlite3) Aey Unthika
● Map your ER diagram to relations
● Create relations in sqlite
● Insert data ( >4GB? )
● Query ( > 30 sec?)
● Use the same data for your selected DBMS
Online Loan Application & Its Verification SystemSoban Ahmad
In This report we included the Online Loan Application & its verification, Detailed about the Requirements & Explain it with Modelling Including Contextual, UML, Sequence, class, state Machine & Activity Diagram.
Extending Role-based Access Control for Business UsageHeik.docxmecklenburgstrelitzh
Extending Role-based Access Control for Business Usage
Heiko Klarl1, 2, Korbinian Molitorisz3, Christian Emig1, 3, Karsten Klinger1 and Sebastian Abeck3
1iC Consult GmbH, Keltenring 14, 82041 Oberhaching, Germany
2Media Computing, University of Regensburg, Germany
3Cooperation & Management, University of Karlsruhe (TH), Germany
Abstract
Role-based access control (RBAC) is used for managing
authorisation in IT systems, by utilising the concept of
roles. Existing approaches do not clearly define the term
“role” in its different contexts as well as not considering
the relation between roles and business process modelling.
Therefore this work introduces business and system role-
based access control (B&S-RBAC). Established role-based
access control models are extended with a business per-
spective and the term role is defined from a business and
from an IT perspective, resulting in business and system
roles. The relation between them is shown in a meta-model
and the usage of business roles for secure business process
modelling is explained.
Keywords: RBAC, Roles, Business Process Modelling,
Identity Management, Access Control, Business-IT Align-
ment.
1 Introduction
Nowadays nearly every business process is extensively
supported by IT systems. Globalisation and hard compe-
tition led to short reaction times in adapting business pro-
cesses and mergers and acquisitions are still challenges for
every enterprise. Due to these conditions, demands for the
companies’ IT systems, business processes and their secu-
rity architecture arise [10]. Business process modelling [17]
tries to cope with those needs as modelled business pro-
cesses are easier to understand, better to redesign and exe-
cutable codes can be generated by model-driven techniques.
As not everyone is allowed to execute particular business
processes, identity management (IdM) ensures that only au-
thorised persons may do so. In order to achieve this, role in-
formation can be assigned to activities within the business
process. In order to accomplish authorisation of the busi-
ness processes’ activities within the supporting IT systems,
role-based access control (RBAC) may be used. But differ-
ent views and definitions of “roles” complicate the RBAC
approach enormously. Within the business process infor-
mation on roles consists of job functions or business tasks
and roles are often more or less just descriptive information.
In contrast, RBAC roles within IT systems encapsulate per-
missions but do often not have any relation to the business
perspective of roles. Generally, the term role used in RBAC
does not distinguish between business and IT. In order to
unify these two different concepts of roles, an error prone
coordination process between business and IT department
arises [2], when business focused roles have to be trans-
ferred to the technological-focused RBAC roles. A first step
to overcome this weakness is to extend existing business
and IT role models and to link them .
Advanced Database Systems CS352Unit 4 Individual Project.docxnettletondevon
Advanced Database Systems CS352
Unit 4 Individual Project
Randle Kuhn
03/14/16
Contents
The Database Models, Languages, and Architecture 3
Database System Development Life Cycle 6
Database Management Systems 9
Advanced SQL 17
Web and Data Warehousing and Mining in the Business World 22
References 23
The Database Models, Languages, and Architecture
It is exceedingly essential for every organization to evaluate its constituent database needs/requirements so as to determine whether it will be operationally compatible with the distinct architectural layouts available. Making the wrong choice of architectural design results to degraded database performance in terms of speed of accessing data as well as executing data definition and manipulation commands. These architectural database designs include the 3-level architecture which is implemented under the ANSI-SPARC (American National Standards Institute, Standards Planning and Requirements Committee) architectural framework of computational standards. It was inaugurated in the year 1975 as an abstract standard for utilization in DBMSs (Database Management System). The core objective of this 3-level architecture is to introduce efficient database operability by separating the users view from the other views (internal, conceptual and external). The user’s view is implemented and operates independently of the underlying database architecture. Therefore, multiple users are able to access similar data items synchronously while at the same time customizing their respective views with no regard to the other users’ views (www.computingstudents.com, 2009). Additionally, it ensures that the users are not presented with the sophisticated hardware/physical implementation details which are basically irrelevant to users. The access speed for this type of architecture is exceedingly high with fault tolerance capabilities.
Data independence refers to a very important concept utilized in centrally oriented database management systems and which incorporates data transparency. This sort of transparency exempts the users from being affected by any alterations conducted on the structural or organizational makeup of the underlying data. According to the guidelines followed by data independence policies, the user applications should not be involved in problems or issues emanating from the internal data definitions. Operations conducted by the user applications should not be influenced in any way by these internal data modifications (Zaiane, 2016). Data independence is subdivided into two categories namely first level and second level of data independence.
Data administrators are responsible of many essential roles which are different from those of a database administrator in several ways. For instance, a data administrator is in charge of coming up with the necessary definition of data items, creating names to refer to various data items as well as their respective relationships. He/she often consult datab.
Database DESIGN CONCEPTS
Dr. Dexter Francis
2
Data Design Concepts
Data Structures
Framework for organizing, storing, and managing data
Comprises of files or tables that interact in various ways
Each file or table contains data about people, places, things, or events
2
Mario and Danica - A Data Design Example
Mario’s auto shop uses file-oriented systems
MECHANIC SYSTEM uses the MECHANIC file to store data about shop employees
JOB SYSTEM uses the JOB file to store data about work performed at the shop
Danica’s auto shop uses a relational model
SHOP OPERATIONS SYSTEM - Tables are linked by a common field named Mechanic No field
3
Data Design Concepts (Cont. 1)
3
4
Data Design Concepts (Cont. 2)
FIGURE 9-4 Danica’s SHOP OPERATIONS SYSTEM uses a database design, which avoids duplication. The data can be viewed as if it were one large table, regardless of where the data is stored physically.
FIGURE 9-2 Mario’s shop uses two separate systems, so certain data must be entered twice. This redundancy is inefficient and can produce data errors.
Mario’s Auto Shop
Danica’s Auto Shop
4
Is File Processing Still Important?
Used by some companies to handle large volumes of structured data on a regular basis
Cost-effective in certain situations
5
Data Design Concepts (Cont. 3)
FIGURE 9-4 A credit card company that posts thousands of daily transactions might consider a file processing option.
5
The Database Environment
Database management system (DBMS): Collection of tools, features, and interfaces that enables users to add, update, manage, access, and analyze data
DBMS advantages
Scalability - System can be expanded, modified, or downsized
Economy of scale
Database design allows better utilization of hardware
6
Data Design Concepts (Cont. 4)
Figure 9-5 In this example, a sales database can
support four separate business systems.
6
Enterprise-wide application
A database administrator (DBA) assesses overall requirements and maintains the database
Stronger standards
Standards for data names, formats, and documentation are followed uniformly throughout the organization
Better security
Only legitimate users can access the database
Different users have different levels of access
Data independence
Systems that interact with a DBMS are relatively independent of how physical data is maintained
7
Data Design Concepts (Cont. 5)
7
8
DBMS Components
Interfaces for Users, Database Administrators, and Related Systems
Users
Work with predefined queries and switchboard commands
Use query languages to access stored data
Database administrators
Responsible for DBMS
management and support
Related information systems
DBMS provides support to
related information systems
FIGURE 9-6 In addition to interfaces or users, database administrators, and related information systems, a DBMS also has a data manipulation language, a schema and subschemas, and a physical data repository.
8
Data Manipulation Language (DML)
Controls ...
The ppt will give the information about the ER-model.
and also here I added one ER-diagram of Placement Management System which will help anyone to understand the components of ER-diagram.
The Easy Guide for Component Diagrams by Creately.
Creately offers wide range of Component Diagrams which can be edited instantly using our component diagram online Editor. We have listed 10 Component Diagrams here, and you can find variety of different templates on our diagram community as well. All our popular diagram templates are available for free. Just click on the "Use as Template" button to immediately start modifying it using our online diagramming tools.
A relational database management system (RDBMS) is a database management system (DBMS) based on the relational model invented by Edgar F. Codd at IBM's San Jose Research Laboratory. Most databases in widespread use today are based on his relational database model.[1]
An Efficient Annotation of Search Results Based on Feature Ranking Approach f...Computer Science Journals
With the increased number of web databases, major part of deep web is one of the bases of database. In several search engines, encoded data in the returned resultant pages from the web often comes from structured databases which are referred as Web databases (WDB).