network‚ they must be modeled. Models are created to visually represent the proposed network so that business requirements can easily be associated with network objects to ensure that all requirements have been completely and accurately gathered. Basically data modeling can fall into two types of categories: Physical modeling and Logical modeling. Logical modeling deals with gathering business requirements and converting those requirements into a model. The logical model revolves around the needs
Premium Entity-relationship model Unified Modeling Language Process management
Difference Between ERD and DFD ERD and DFD are data presentation models that help in identifying the flow of data as well as inputs and outputs. They are important as they enable effective communication between members of different departments in an organization. There are similarities in the two types of data presentation models although there are differences that will be talked about in this article. DFD’s are systematic representation of how data flows in an organization‚ how and from where it
Premium Entity-relationship model Data flow diagram
GRAND ASTORIA HOTEL RESERVATION WEBSITE A Project Presented to the Faculty of STI College-Zamboanga In Partial Fulfillment of the Requirements for the Degree of Bachelor of Science in Information Technology by Calisang‚ Ellis Marc D. Caramonte‚ Edcel B. Lim‚ Jason Justin O. Abdu-Shakoor L. Ibrahim Project Adviser October 2012 ADVISER’S RECOMMENDATION SHEET This Project entitled GRAND ASTORIA HOTEL
Premium Database normalization
*IS:arrangement of people‚data‚processes‚information technology that interact to collect‚process‚provide as output the info needed to support the organization. Types of IS: TPS‚MIS‚decision support system‚communications and collaboration system‚expert system‚ office automation system & executive info system Types of Stakeholders:System owners (middle and executive managers‚ supervisors)‚System users (clinical& service workers‚technical and professional workers; suppliers‚customers‚employees)
Premium Unified Modeling Language Data flow diagram Use case
ASSIGNMENT Use an example to explain the difference between a logical process models and physical process models. Logical model portrays your model elements and how they identify with one another. A physical model depicts every entity in point of interest‚ including data about how you would actualize the model utilizing a specific item. In a logical model portraying a man in a family tree‚ every individual node would have attributes‚ for example‚ name‚ date of birth‚ spot of birth‚ and so forth
Premium Entity-relationship model Unified Modeling Language
turn is further described in detail giving all the fields used with the data types‚ constraints available‚ primary key and foreign key. Database design is used to manage large bodies of information. In this database we describe all the 4 tables available in the software‚ which are used to store all the records. 2. Data types and its description: Fields in database table have a data type. Some of the data types used in database table are explained below. a) Integer:-
Premium Relational model SQL Entity-relationship model
SSADM Introduction SSADM’s approach to this problem is to provide a basis‚ the default Structural Model‚ plus some guidelines and a number of typical examples and expect this to be customized for each new project. Generally‚ a SSADM customization strategy will be a component of a broader strategy which affects the way in which projects are undertaken. Documentation of the justification for customization is very important. SSADM is in the public domain‚ so no license fee has to be paid to use
Premium Design Completeness Data modeling
Assignment 2- Database Modeling and Normalization Dr. Amir Afzal Strayer University- CIS 515 August 7‚ 2012 Abstract Selling high end electronics is big business and being a commissioned employee in that field if your sales are up means big money. Prices for electronics range from the low hundreds into the thousands. It really depends on the person style‚ specifications they are looking for‚ trust in the brand‚ and the depth of their pockets‚ how much a person is willing to spend for
Premium Data Computer data
feasibility PIECES Framework | 7 | 8. | Schedule Feasibility | 8 | 9. | Economic Feasibility | 9 | 10. | Stages of SSADM | 10 | 11. | Detail business specification | 11 | 12. | Flowchart | 12 | 13. | Context Level Diagram | 13 | 14. | Data Flow Diagram | 14 | 15. | ER-Diagram | 16 | 16. | Physical Design | 17 | 17. | Individual reports | 24 | Abstract The main objective of the project is to identify the different framework of activities associated with methodologies and
Premium Data flow diagram Systems Development Life Cycle Project management
Gantt Chart 15 5.4.3 PERT Chart 15 6.0 Methodology 16 6.1 SSADM 16 6.2 OO Method 18 6.3 Comparison 18 7.0 Fact Finding Techniques 19 7.1 Interview 19 7.2 Questionnaire 20 7.3 Document Review 23 8.0 Design Phase 24 8.1 Data Flow Diagram 24 8.1.1 Context Diagram 24 8.1.2 Diagram 0 25 8.1.3 Diagram 1 26 8.2 Entity Relationship Diagram 29 8.3 Entity Life History 30 8.3.1 Customer 30 8.3.2 Restaurant 31 8.3.3 Driver 31 9.0 Appendices 32 10.0
Premium Entity-relationship model Data flow diagram