Dbms Journal

In: Business and Management

Submitted By johnnarith
Words 2037
Pages 9
Bagaimana Cloud Computing Memungkinkan Proses dan Inovasi Model Bisnis
Saul J. Berman, Lynn Kesterson-Townes, Anthony Marshall dan Rohini Srivathsa

Meskipun cloud computing secara luas diakui sebagai permainan perubahan teknologi karena menawarkan layanan kapan saja, di mana saja, potensi untuk mengendalikan inovasi bisnis yang hampir belum dimanfaatkan. Bahkan, teknologi cloud memiliki kekuatan fundamental untuk menggeser competitive landscape dengan menyediakan sebuah platform baru untuk menciptakan dan memberikan nilai bisnis.
Proposisi nilai pelanggan ( Customer Value Preposition) * Meningkatkan: organisasi dapat menggunakan cloud services untuk mempertahankan yang telah ada saat ini dan menarik pelanggan baru, mengumpulkan pendapatan tambahan dengan meningkatkan produk dan pelayanan saat ini serta meningkatkan pengalaman pelanggan. * Memperpanjang: teknologi cloud dapat membantu perusahaan menciptakan produk dan layanan baru atau memanfaatkan saluran baru ataupun metode pembayaran untuk menarik pelanggan yang ada atau yang memiliki segmen berdekatan untuk menghasilkan pendapatan baru yang lebih signifikan. * Menciptakan: perusahaan dapat menggunakan teknologi cloud untuk membuat sebuah ''kebutuhan”baru dan berpotensi memiliki pasar baru, sehingga menarik segmen pelanggan baru dan menghasilkan aliran pendapatan baru.
Rantai nilai ( Value Chain ) * Meningkatkan: Cloud dapat membantu organisasi mempertahankan tempatnya dalam rantai nilai yang ada melalui peningkatan efisiensi dan kemampuan untuk bermitra, sumber daya dan berkolaborasi. * Transform: Dengan membantu dalam mengembangkan kemampuan operasi baru, teknologi cloud dapat membantu perusahaan mengubah perannya dalam industri atau memasukkan industri yang berbeda. * Membuat: organisasi dapat menggunakan teknologi cloud untuk membangun rantai nilai industri baru atau…...

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...______________________________________ ------------------------------------------------- Roll No. : ______________________________________ ------------------------------------------------- ------------------------------------------------- An Introduction to Database Management Systems A database is a collection of related files that are usually integrated, linked or cross-referenced to one another. The advantage of a database is that data and records contained in different files can be easily organized and retrieved using specialized database management software called a database management system (DBMS) or database manager. DBMS Fundamentals A database management system is a set of software programs that allows users to create, edit and update data in database files, and store and retrieve data from those database files. Data in a database can be added, deleted, changed, sorted or searched all using a DBMS. If you were an employee in a large organization, the information about you would likely be stored in different files that are linked together. One file about you would pertain to your skills and abilities, another file to your income tax status, another to your home and office address and telephone number, and another to your annual performance ratings. By cross-referencing these files, someone could change a person's address in one file and it would automatically be reflected in all the other files. DBMSs are commonly used to manage: * Membership and......

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... * Real-world entity − A modern DBMS is more realistic and uses real-world entities to design its architecture. It uses the behaviour and attributes too. For example, a school database may use students as an entity and their age as an attribute. * Less redundancy − DBMS follows the rules of normalization, which splits a relation when any of its attributes is having redundancy in values. * Consistency − There exist methods and techniques, which can detect attempt of leaving database in inconsistent state. A DBMS can provide greater consistency as compared to earlier forms of data storing applications like file-processing systems. * Query Language − DBMS is equipped with query language, which makes it more efficient to retrieve and manipulate data. * ACID Properties − DBMS follows the concepts of Atomicity, Consistency, Isolation, and Durability (normally shortened as ACID). These concepts are applied on transactions, which manipulate data in a database. ACID properties help the database stay healthy in multi-transactional environments and in case of failure. * Multiuser and Concurrent Access − DBMS supports multi-user environment and allows them to access and manipulate data in parallel. * Multiple views − DBMS offers multiple views for different users. A user who is in the Sales department will have a different view of database than a person working in the Production department. * Security − DBMS offers methods to impose......

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...entities, both the degree and name of the relationship need to be specified. In ER diagram, the commonly used symbols are: [pic] Fig. 3.1.1E-R-D Symbols 3.2 E-R Diagram An entity-relationship diagram is a data modeling technique that creates a graphical representation of the entities, and the relationships between entities, within an information system. The E-R Diagram of the proposed attendance management system is: Fig. 3.2.1 E-R Diagram of Attendance Management System 3.3 Schema A database schema of a database system is its structure described in a formal language supported by the database management system (DBMS) and refers to the organization of data as a blueprint of how a database is constructed (divided into database tables in case of Relational Databases). The formal definition of database schema is a set of formulas (sentences) called integrity constraints imposed on a database.  The schema of the attendance management system is: Figure 3.3.1 Schema of the Attendance Management System 3.4 Tabular Representation Of Schema Table 3.4.1 |Entity |Attribute |Constraints |Referential Integrity | |Teacher |TName |Character | | | |Teacher_ID |varchar......

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