ITSS 4300 Final Exam

ITSS 4300 Final Exam Object-oriented systems have three general types of cohesion: _____, _____, and _____. - ✔✔method, class, generalization/specialization The external behavior of a system is described by _____. - ✔ ...

ITSS 4300 Final Exam Object-oriented systems have three general types of cohesion: _____, _____, and _____. - ✔✔method, class, generalization/specialization The external behavior of a system is described by _____. - ✔✔Functional Models Which approach to system testing checks to see if the new system can handle high volumes of transactions? - ✔✔Performance Testing The focus in a sequence diagram is on __________________ - ✔✔Time ordering of messages being passed between objects A(n) _____ defines a series of tests that will be conducted to identify errors in programming. - ✔✔Test Plan A package diagram is a class diagram that shows only packages and classes. - ✔✔False If you use state-of-the-art technology, you can significantly decrease the project s time and cost estimates because the newer technologies are much faster and more efficient than older ones. - ✔✔False An action is an atomic, non-decomposable process that cannot be interrupted. - ✔✔True Hofstede identified 5 dimensions on cultural differences. Which one in the following list is NOT the dimension Hofstede identified? - ✔✔Religion The Object Relational DBMS has all advantages from both the Relational DBMS and the ObjectOriented DBMS. - ✔✔False The layer that would include the classes that would interact with middleware applications is the physical architecture layer. - ✔✔True A post-condition is one that must be valid for a method to execute - ✔✔False Which one in the following is NOT a factor for selecting a design strategy? - ✔✔Software quality The layer that keeps the user interface implementation separate from the application or problem domain classes is the _____ layer. - ✔✔Human-computer Interaction The two types of interaction diagrams are ______________ diagrams. - ✔✔Sequence and communication Return messages in a sequence diagram are often shown using dashed lines with arrows labeled with the return value. - ✔✔True _____ makes it impossible to know which implementation is going to be executed until the system actually does it. - ✔✔Dynamic Binding An advantage of custom development is that the organization can _____. - ✔✔build technical skills and functional knowledge When a global data area exists outside individual objects, the resulting system has _____ interaction coupling. - ✔✔common or global To avoid the classic design mistake of silver bullet syndrome, the analyst should _____. - ✔✔not use a design tool that appears too good to be true A master file stores core information that is important to the business, is normally kept for long periods of time, and is regularly updated. - ✔✔True A(n) _____ is the equivalent to a subsystem. - ✔✔Partition _____ is the type of test performed to assess whether a set of classes that must work together do so without an error. - ✔✔Integration Testing A method for improving data access that involves physically arranging the records on the storage medium is called clustering. - ✔✔True The number of errors found will be highest in the _____ stage of testing. - ✔✔Integration Test Which of the following statements is true about testing object-oriented systems? - ✔✔testing is more important than it was in systems developed before object-oriented development encapsulation makes testing easier Which the following class should be designed in layer Foundation? - ✔✔Date A systems analyst draws a lifeline with an X at the end. This lifeline represents _____. - ✔✔An object that is complete at that point in time There are three primary types of outsourcing contracts: 1) time and arrangements, 2) variableprice, and 3) value added. - ✔✔False To avoid the classic design mistake of feature creep, the analyst should _____. - ✔✔rapid application development techniques or timeboxing A Case statement is an advanced form of an If statement. - ✔✔True An audit file contains information about how data changes over time; it records before and after images of data as it is altered so that it can be validated later. - ✔✔True _____ means having the ability to send the same message to different objects, which can be interpreted differently by different objects. - ✔✔Polymorphism When the analyst is evaluating a data model to ensure that all fields in a record depend fully on the entire primary key, the analyst is making sure that the data model conforms to the second normal form - ✔✔True When information systems projects fail, the primary reason has traditionally been _____ - ✔✔poor analysis, design, installation, or project management, poor programming _____ has emerged as the standard for the design of object-oriented systems - ✔✔UML Regular meetings of a systems project team _____. - ✔✔encourage communication Many project teams are too quick to jump into writing code for classes without first designing them. - ✔✔True The audience for pseudocode is the _____. - ✔✔programmer In order to get an object to perform a method, a(n) _____ is sent to the object. - ✔✔message A(n) _____ describes information about an object. - ✔✔attribute When arranging actors and objects on a sequence diagram, it is nice to list them _____. - ✔✔in order in which they participate in the sequence across the top of the diagram Three common types of documentation are reference documents, help systems, and procedure manuals. - ✔✔False If cost is a critical issue, you should assign the best, most expensive personnel to the implementation phase; never assign entry-level personnel in an attempt to save costs. - ✔✔True The four approaches to unit testing are user interface testing, use scenario testing, data flow testing, and system interface testing; most projects use all four approaches. - ✔✔False One of the guidelines for creating sequence diagram is: Place the initiator of the scenario on the right of diagram. - ✔✔False On a sequence diagram, an object name of Students:List would indicate that _____. - ✔✔students is an instance of the List class that contains individual student objects Documentation should be written in long paragraphs so that users get large amounts of detail quickly. - ✔✔False In terms of levels of abstraction, which of the following is at the lowest level relative to the rest? - ✔✔Method Joanne, a systems analyst trained at this university, has been asked to lead a team that will recommend a new data storage system for her company. After careful analysis of the five divisions that comprise the entire $35 million company, Joanne s team should recommend a enduser database management system. - ✔✔False