Tugas – True Or False : System Design 1. Information systems design is defined as those tasks that focus on evaluating the feasibility of the system. A. True B. False 2. Model-driven design emphasizes the drawing of pictorial system models to document the technical or implementation aspects of a system. A. True B. False 3. Synonyms for modern structured design are: bottom-up prototype design and joint object programming. A. True B. False 4. Structured design seeks to factor a program into the top-down hierarchy of modules that should have the following properties - (1) modules should be loosely cohesive; and (2) modules should be tightly coupled. A. True B. False 5. When modules are loosely coupled, modules are minimally dependent on one another. This minimizes the effect that future changes in one module will have on other modules. A. True B. False 6. When modules are highly coupled, each module should accomplish one and only one function. This makes modules reusable in future programs. A. True B. False 7. The data model chart is derived by studying the flow of data through the program. Structured design is performed during systems analysis. A. True B. False 8. The primary tool of information engineering (IE) is the structure chart (also known as the entity-relationship diagram). A. True B. False 9. A disadvantage of prototyping is that iteration and change are a natural consequence of systems development. It allows the end-users to change their minds too often. A. True B. False 10. An advantage of prototypes is that they are an active, not passive, model that end-users can see, touch, feel and experience. A. True B. False 11. An advantage of prototyping is that it can accelerate several phases of the life cycle, possibly bypassing the programmer. It consolidates parts of phases that normally occur one after the other. A. True B. False 12. An advantage of prototyping is that you can substitute any prototype for a paper specification. The need for a paper design is eliminated. A. True B. False 13. An advantage of prototyping is that it often leads to an early commitment to a design (usually the first one implemented). A. True B. False 14. Rapid application development (RAD) techniques are used to refine the object requirements identified earlier during analysis, and to define and design specific objects. A. True B. False 15. Joint application development (JAD) is a technique that combines structured design object-oriented design, and information engineering, to develop a more complete entityrelationship diagram and project dictionary. A. True B. False 16. A database schema is the structural model for a database. It is a picture or map of the records and relationships to be implemented by the database. A. True B. False 17. Reports and other outputs are usually printed directly onto paper or displayed on a terminal screen. A. True B. False 18. As we approach the completion of the design phase, it is no longer necessary to reevaluate the project for feasibility. A. True B. False 19. The request for quotation (RFQ) is used when you have already decided on the specific product, but that product can be acquired from different distributors. A. True B. False 20. The request for quotation (RFQ) is used when several different vendors and/or products are candidates and you want to solicit competitive proposals and quotes. Its purpose is to communicate requirements and desired features to prospective vendors. A. True B. False