Devry CIS 321 Full Course Latest

1. Devry CIS 321 Full Course Latest Just Click on Below Link To Download This Course: https://www.devrycourses.com/product/devry-cis-321-full-course-latest/ Or Email us help@devrycourses.com Devry CIS 321 Full Course Latest Devry CIS 321 Full Course Latest [ all discussions , quizes and all Week Assignments milestones ] Devry CIS 321 All Discussions Latest Devry CIS 321 Week 1 Discussion DQ1 & DQ 2 Latest DQ 1 Who are the typical system stakeholders (the key players), and what are their unique roles? DQ 2 Seventy percent or more of information system projects have failed to meet the needs of users and have exceeded budgetary limits. Why do you think this is? What can the systems analyst do to increase the probability of having a successful project? Devry CIS 321 Week 2 Discussion DQ1 & DQ 2 Latest DQ 1 Compare and contrast the PM life cycle with the SDLC. Why is project management different from normal management? DQ 2 What are the challenges in analyzing a system? What are some of the components in analyzing a system so that it has a high degree of success or is found unfeasible? Why would a system project fail?

2. Devry CIS 321 Week 3 Discussion DQ1 & DQ 2 Latest DQ 1 Finding the requirements for a new system or a redeveloped system is a major undertaking and a very high priority. What are some of the techniques in discovering the requirements (fact finding) for a system? Which ones work best? Which ones are the most economical? Where in the SDLC do we most commonly search for requirements? DQ 2 We will focus on the way to build the first diagram in the process model called a context data flow diagram (CDFD). Give an example of how process modeling might be beneficial? How does creating the CDFD benefit IT system development and the user? Devry CIS 321 Week 4 Discussion DQ1 & DQ 2 Latest DQ 1 Discuss the importance and usefulness of data modeling in the analysis phase. How do we know what data we need to model? DQ 2 What steps can you go through to ensure that you are including all of the necessary data in your model? How are the techniques of data modeling applied to problem statements? Devry CIS 321 Week 5 Discussion DQ1 & DQ 2 Latest DQ 1 In this discussion, we will focus on the way to build process models and discuss their technical aspects. Give an example of how process modeling might be beneficial, whether specifically for an IT system development project or not. How are logical process modeling techniques used in detailed systems requirements analysis? DQ 2 This week, we will continue to work on how to create good ER diagrams. More sample problems

3. will be introduced and demonstrated. The emphasis will be on many-to-many relationships. Why do we need an associative table for many-to-many relationships? Devry CIS 321 Week 6 Discussion DQ1 & DQ 2 Latest DQ 1 What is a feasibility analysis? Please share an example of feasibility analysis that is not IT related (or even one that is IT related if you want to). Show how that experience relates to one or more of the feasibility tests for operational, technical, schedule, or economic feasibility described in Chapter 11. DQ 2 What is the difference between systems analysis and systems design? What are some of the different model-driven methodologies? Devry CIS 321 Week 7 Discussion DQ1 & DQ 2 Latest DQ 1 As a culminating exercise, what key aspects did you learn regarding the creation, analysis, and management of information systems? How will this impact your future? What thoughts or issues were developed that require further exploration? DQ 2 Explain the purpose of testing. Explain how tests are performed at different levels in the system, such as stub testing, unit testing, integration testing, system testing, and parallel and user acceptance tests. Devry CIS 321 All Quizes Latest Devry CIS 321 Week 1 Quiz Latest 1. 1.Question : (TCO 1) Which of the following is NOT an ongoing activity of systems support? Assisting users Continuing analysis of the system Recovering the system Fixing software bugs Adapting the system to new requirements

4. Question 2. Question : (TCO 1) The first CMM level at which a standard project methodology is practiced is Level 1. Level 2. Level 3. Level 4. Level 5. Question 3. Question : (TCO 1) A contemporary term that describes the combination of hardware, software, and data communications is information system. information technology. expert system. artificial intelligence. None of the above Question 4. Question : (TCO 1) An information system’s sponsor and chief advocate is the system user. system builder. system owner. system analyst. None of the above Question 5. Question : (TCO 1) Decision makers who are concerned with the overall business performance, any strategic or long-term planning, and problem-solving are supervisors. middle managers. executive managers. mobile managers. None of the above Question 6. Question : (TCO 1) How does globalization affect systems analysis? Information systems must support multiple languages. Information systems must support currency exchange. Information systems become more complex. There is an increased demand for multilingual analysts.

5. All of the above Question 7. Question : (TCO 1) A comprehensive approach to facilitate quality improvements and management within a business and its products and services is known as the capability maturity model. continuous process improvement. business process redesign. total quality management. None of the above Question 8. Question : (TCO 1) If a fast food organization set up a web-based information system that employees, suppliers, and franchisees could all access for coordination of deliveries, that would be an example of a(n) B2C. intranet. extranet. ERP. None of the above Devry CIS 321 Week 2 Quiz Latest 1. 1.Question : (TCO 1) A problem-solving technique that reassembles a system’s component pieces into a complete, new, and improved system is systems design. systems analysis. cause-and-effect analysis. joint application design (JAD). None of the above Question 2. Question : (TCO 1) A system proposal may be presented as a report. verbal presentation. walkthrough. All of the above None of the above

6. Question 3. Question : (TCO 1) A committee of executive business and system managers that studies and prioritizes competing project proposals to determine which projects will return the most for an organization and should therefore be approved is a joint application committee. joint requirements committee. steering body. prototyping body. None of the above Question 4. Question : (TCO 1) Which of the following is not a category of constraints? Schedule Technology Priority Cost Policy Question 5. Question : (TCO 1) A description of activities and services that a system must provide is a nonfunctional requirement. functional requirement. prototype. physical requirement. None of the above Question 6. Question : (TCO 3) Which of the following is the amount of delay that can be tolerated by a noncritical task without causing a delay in the completion date of the entire project? Optimistic duration Pessimistic duration Critical path Slack time None of the above Question 7. Question : (TCO 3) Which of the following is NOT shown on a PERT chart? Scheduled start date Actual start date

7. Task name Estimated duration Intertask dependencies Question 8. Question : (TCO 3) A tool for helping management understand the dynamics and impact of changing project parameters, such as cost, schedule, scope, and quality, is total quality management. project management. joint project planning. expectations management matrix. None of the above Question 9. Question : (TCO 3) Which of the following establishes a project start date and then schedules forward from that date? End scheduling Remote scheduling Forward scheduling Reverse scheduling None of the above Question 10. Question : (TCO 3) Which of the following establishes a project deadline and then schedules backward from that date? End scheduling Remote scheduling Reverse scheduling Forward scheduling None of the above Devry CIS 321 Week 3 Quiz Latest 1. 1.Question : (TCO 4) A systematic sampling technique that attempts to reduce the variance of the estimates by spreading out the sampling or by avoiding very high or low estimates is observation. proxemics.

8. randomization. stratification. None of the above Question 2. Question : (TCO 4) Which of the following is something you should do during an interview? Tape-record the interview Talk extensively to explain the system Let the interview run as long as it needs to Note nonverbal communication Avoid eye contact Question 3. Question : (TCO 4) Which of the following is NOT a guideline for successfully conducting a JRP session? Encourage group consensus. Encourage user and management participation. For precision, use technical jargon. Apply conflict resolution skills. None of the above Question 4. Question : (TCO 5) The act of breaking a system into its component subsystems, processes, and subprocesses is known as generalization. normalization. composition. decomposition. None of the above Question 5. Question : (TCO 5) Another name for a data flow diagram is a process model. transformation graph. bubble chart. All of the above Question 6. Question : (TCO 4) A function or feature that highlights what a system must do is known as a requirements discovery.

9. a problem requirement. a functional requirement. a nonfunctional requirement. Question 7. Question : (TCO 4) A fact-finding technique wherein the systems analyst either participates in or watches a person perform activities to learn about the system is observation. proxemics. randomization. stratification. None of the above Question 8. Question : (TCO 5) In data flow diagrams processes are represented by rounded rectangles. data flows are represented by arrows. data stores are represented by open-ended boxes. external agents are represented by squares. All of the above Question 9. Question : (TCO 5) A context data flow diagram shows all of the following EXCEPT the external agents that communicate with the system. the information that the external agents either send to or get from the system. the processes that each external agent interfaces with. the system as a single element. All of the above are shown. Question 10. Question : (TCO 5) A process that has an input and an output data flow is known as a white hole. a gray hole. a black hole. both a miracle and a black hole. None of the above

10. Devry CIS 321 Week 4 Quiz Latest 1. 1.Question : (TCOs 9 and 10) The value that is recorded in an attribute if a user does not specify one is known as the domain. key. default value. data type. None of the above Question 2. Question : (TCOs 9 and 10) Which of the following is a category of entities? Person Place Object Concept All of the above Question 3. Question : (TCOs 9 and 10) Any candidate key that is not selected to become the primary key is called the entity key. the concatenated key. the subsetting key. the domain key. the alternate key. Question 4. Question : (TCOs 9 and 10) The problem analysis phase model that includes only entities and relationships but no attributes is known as the enterprise data model. is known as the application data model. is known as the context data model. does not exist; all data models must have attributes. None of the above Question 5. Question : (TCOs 9 and 10) A code that assigns sequentially generated numbers to entity instances is known as a serial code.

11. a sequential code. an alphabetic code. a significant position code. None of the above Question 6. Question : (TCOs 9 and 10) Fields whose values identify one and only one record in a file are called foreign keys. primary keys. alternative keys. concatenated keys. None of the above Question 7. Question : (TCOs 9 and 10) Which defines the minimum and maximum number of occurrences of one entity that may be related to a single occurrence of the other entity? Domain Concatenation Associative entity Cardinality None of the above Question 8. Question : (TCOs 9 and 10) An entity that inherits its primary key from more than one entity is called a(n) associative entity. concatenated entity. ternary. many-to-many cardinality. None of the above Question 9. Question : (TCOs 9 and 10) When a parent entity contributes its primary key to become part of the primary key of the child entity, the relationship is known as primary. associative. nonidentifying. identifying. None of the above

12. Question 10. Question : (TCOs 9 and 10) Which normal form deals with repeating attributes? 1NF 2NF 3NF All of the above None of the above Question 11. Question : (TCOs 9 and 10) A table in which rows indicate entities (and possible attributes), the columns indicate locations, and the cells indicate the document level of access, including create, read, update, or delete, is known as an entity relationship table. a transitive dependency table. a data-to-location CRUD matrix. a decision table. None of the above Question 12. Question : (TCOs 9 and 10) A Gender field can hold only the values M or F. This is an example of key integrity. domain integrity. referential integrity. logical integrity. schema integrity. Question 13. Question : (TCOs 9 and 10) Students take courses and get grades. A Course can have many Students. A Student can take many Courses. For each course, the student gets a Grade. How would you define the relationship between Student and Course such that it is in 3NF? Devry CIS 321 Week 5 Quiz Latest 1. 1.Question : (TCOs 5, 6, 7, and 9) A tabular form of presentation that specifies a set of conditions and their corresponding actions is a decomposition table. a condition table.

13. a presentation table. a decision table. None of the above Question 2. Question : (TCOs 5, 6, 7, and 9) A tool that depicts the flow of data through a system and the work or processing performed by that system is known as an entity relationship diagrams. a decomposition, structure diagram. a data flow diagrams. a business activity list. None of the above Question 3. Question : (TCOs 5, 6, 7, and 9) Which of the following is not a restriction of Structured English? Only passive verbs may be used. Only names that have been defined in the project dictionary may be used. Formulas must be clearly stated using appropriate mathematical notations. Blocking and indentations must be used for readability. None of the above Question 4. Question : (TCOs 5, 6, 7, and 9) A set of related and ongoing activities in a business is known as a function. a database. a system. an event. None of the above Question 5. Question : (TCOs 5, 6, 7, and 9) Black holes are caused by having no inputs or outputs. having inputs but no outputs. having outputs but no inputs. All of the above None of the above Question 6. Question : (TCOs 5, 6, 7, and 9) Which of the following is a restriction of Structured English?

14. Only strong, imperative verbs may be used. Only names that have been defined in the project dictionary may be used. Formulas must be stated clearly using appropriate mathematical notations. Blocking and indentation must be used for readability. All of the above Question 7. Question : (TCOs 5, 6, 7, and 9) A set of rules that governs some process in business is known as an event. a policy. a function. a process. None of the above Question 8. Question : (TCOs 5, 6, 7, and 9) Structured English includes which of the following as a construct? A sequence of simple declarative sentences Use of action verbs in the declarative sentences to indicate the appropriate action for the sentence A conditional or decision structure A repetitive or iterative structure All of the above Devry CIS 321 Week 6 Quiz Latest 1. 1.Question : (TCO 2) Which of the following tools provides a ranking of candidate systems? Feasibility analysis matrix Candidate systems matrix Time value of money System proposal None of the above Question 2. Question : (TCO 2) Which kind of feasibility can be impacted by how the working environment of end users will change, given the proposed system?

15. Operational feasibility Technical feasibility Schedule feasibility Legal feasibility Cultural or political feasibility Question 3. Question : (TCO 2) Which of the following is a fixed operating cost? computer usage supplies lease payment utilities postage Question 4. Question : (TCO 2) At which of the following points during systems analysis would you NOT have a feasibility checkpoint? After the scope definition phase After the decision analysis phase After the problem analysis phase After the logical design phase You would have a feasibility checkpoint after each of these phases. Question 5. Question : (TCO 2) Which of the following is NOT a guideline for conducting a formal presentation? Dress professionally. Avoid using the word I. Maintain eye contact and maintain an air of confidence. Maintain an air of confidence. All of these are guidelines for conducting a formal presentation. Question 6. Question : (TCO 6) Which of the following is an advantage of prototyping? It encourages and requires active end-user participation. It negates the need for the systems analysis phases. It helps keep the scope and complexity of the system under control. It can increase creativity because it encourages analysts, designers, and end users to look for better solutions. None of the above

16. Question 7. Question : (TCO 6) Which of the following emphasizes the drawing of pictorial system models to document the technical or implementation aspects of a new system? Model-driven design Rapid application development Joint application development Both rapid application development and joint application design None of the above Question 8. Question : (TCO 6) Structured design seeks to factor a program into the top- down hierarchy of modules that have which of the following properties? Loosely cohesive and highly coupled Loosely cohesive and loosely coupled Highly cohesive and highly coupled Highly cohesive and loosely coupled None of the above Question 9. Question : (TCO 6) Which technique emphasizes the participative development among system owners, users, designers, and builders? Rapid application development Joint application development Application architecture Both rapid application development and joint application development None of the above Question 10. Question : (TCO 6) Which of the following is a disadvantage of prototyping? Prototyping encourages a return to the “code, implement, and repair” life cycle. Prototypes are a passive model of the system. End users don’t fully understand their requirements until they see them implemented. Errors cannot be detected as easily when a prototype is developed. None of the above Question 11. Question : (TCO 6) The information system application layer that implements any processing that must be done to generate the user interface is known as the presentation layer. the presentation logic layer. the application logic layer.

17. the data manipulation layer. the data layer. Question 12. Question : (TCO 6) The application architectural blueprint communicates which of the following design decisions? The distribution of stored data across a network The technology to be used to interface with other systems The technology to be used to implement the user interface The integration of any commercial off-the-shelf software All of the above Question 13. Question : (TCO 6) Which of the following is a reason to split a logical process into multiple physical processes? To split the process into the portion to be performed by people and the portion to be performed by the computer To show multiple, but different, implementations of the same logical process (such as one process for paper orders and a different process for Internet orders) To split the process into the portion that is to be implemented with one technology and the portion to be implemented with a different technology To add processes that are necessary to handle exceptions or to implement security requirements and audit trails All of the above Question 14. Question : (TCO 6) The information system application layer that is the actual stored data in the database is known as the presentation layer. the presentation logic layer. the application logic layer. the data manipulation layer. the data layer. Question 15. Question : (TCO 6) A server that hosts application logic and services for an information system, which must communicate on the front end with clients and on the back end with database servers, is known as a(n) database server. transaction server.

18. application server. messaging server. None of the above Devry CIS 321 Week 7 Quiz Latest 1. 1.Question : (TCO 8) Which of the following reports categorizes information for managers who do not want to wade through the details? Summary Exception External Detailed None of the above Question 2. Question : (TCO 8) Which of the following is a general principle for output design? The timing of computer outputs is important. Output information must reach recipients while the information is pertinent to transactions or decisions. The distribution of (or access to) computer outputs must be sufficient to assist all relevant users. The computer outputs must be acceptable to the system users. Computer outputs should be simple to read and interpret. All of the above Question 3. Question : (TCO 8) Paper is bulky and requires considerable storage space. To overcome the storage problem, many businesses use what other output medium? Hyperlinks Microfilm Microfiche Multimedia Both B and C Question 4. Question : (TCO 8) Computer outputs should be simple to read and interpret. Which of the following is a guideline that applies to this principle? Every output should have a title.

19. Every output should be dated and time stamped. Only required information should be printed or displayed. Information should never have to be manually edited to become usable. All of the above Question 5. Question : (TCO 8) Optical character recognition is used on forms for objective-based questions on exams. requires the user or customer to carefully handwrite input data on a business form. is most widely used in the banking industry. is based on unique human characteristics or traits—for example, fingerprints, voice patterns, and retinal patterns. represents a portable storage medium that contains a microprocessor, memory circuits, and a battery with the ability to store a massive amount of information. Question 6. Question : (TCO 8) Which kind of chart is useful for comparing series or categories of data? Each horizontal bar represents one series or category of data. Area Bar Column Donut None of the above Question 7. Question : (TCO 8) A check box gives the user the flexibility of entering a data item’s value directly or selecting the value from a list. requires the user to select a data item’s value from a list of possible choices. allows the user to enter data directly into the associated text box or to select a value by using the mouse to scroll (spin) through a list of values using the buttons. acts as a toggle switch on an input value. All of the above Question 8. Question : (TCO 8) Batch processing is the identification and acquisition of new data. the process of collecting entered data into files called batches. the process of translating the source document into a machine-readable format. the process of capturing data immediately.

20. None of the above Question 9. Question : (TCO 8) Existence checks determine whether the input data for each field falls within the legitimate set or range of values defined for that field. determine whether all required fields on the input have actually been entered. determine data entry errors on primary keys. compare data entered against the known formatting requirements for that data. ensure that the correct type of data is input. Question 10. Question : (TCO 8) Self-checking digits determine whether the input data for each field falls within the legitimate set or range of values defined for that field. compare data entered against the known formatting requirements for that data. determine whether a known relationship between two fields is valid. ensure that the correct type of data is input. determine data entry errors on primary keys. Question 11. Question : (TCOs 11, 12, and 13) Which of the following is NOT a task of the systems implementation phase? Install databases. Train system users. Prepare conversion plan. Install and test new software packages. Conduct system test. Question 12. Question : (TCOs 11, 12, and 13) Which kind of validation testing might lead to rescheduling some processing to other parts of the day? Systems performance Peak workload processing Human engineering Methods and procedures Backup and recovery Question 13. Question : (TCOs 11, 12, and 13) Which kind of testing runs the system in a simulated environment using simulated data? Validation testing

21. Verification testing Audit testing Matrix testing Litmus testing Question 14. Question : (TCOs 11, 12, and 13) Which kind of validation testing involves simulating a data loss disaster? Systems performance Peak workload processing Human engineering Methods and procedures Backup and recovery Question 15. Question : (TCOs 11, 12, and 13) The person generally responsible for network security is called a network administrator. network designer. systems analyst. systems integrator. systems designer. Devry CIS 321 All Assignments Latest Devry CIS 321 Week 1 Assignment Latest MILESTONE 1 – SCOPE DEFINITION _______________________________________________________________________________ _______________________ Case Background In this milestone, you will prepare a Request for System Services Form, which is the trigger for the Preliminary Investigation Phase. Also, you will use fact-finding techniques to extract and analyze information from an interview to determine project scope, level of management commitment, and project feasibility for the Equipment Check-Out System (ECS). With these facts and facts obtained from the Case Background, you will have the necessary information to complete the Problem Statement Matrix. Refer to the ECS Case Introduction in the Case Project page.

22. Objectives After completing this milestone, you should be able to: Complete a Request for System Services form, which triggers the preliminary  investigation phase. Analyze a user interview and extract pertinent facts, which can be used to assess project  feasibility. Complete a “Problem Statement Matrix documenting the problems, opportunities, or  directives of the project. Prerequisites Before starting this milestone, the following topics should be covered: The scope definition phase — Chapters 3 and 5  Project management (optional) — Chapter 4  Assignment Devry CIS 321 Week 2 Assignment Latest MILESTONE 2– PROBLEM ANALYSIS _______________________________________________________________________________ _______________________ Synopsis There’s an old saying that suggests, “Don’t try to fix it unless you understand it.” With those words of wisdom, the next milestone of our project is to study and analyze the existing system. There is always an existing business system, regardless of whether it currently uses a computer. The problem analysis phase provides the project team with a more thorough understanding of the problems, opportunities, and/or directives that triggered the project. Indeed, the analyst frequently uncovers new problems and opportunities. The problem analysis phase may answer the questions, “Are the problems worth solving?” and “Is a new system worth building?” The purpose of the problem analysis phase is threefold. First and foremost, the project team must gain an appropriate understanding of the business problem domain. Second, we need to answer the question, “Are these problems (opportunities and directives) worth solving”? Finally, we need to determine if the system is worth developing. The problem analysis phase provides the systems analyst and project team with a more thorough understanding of the problems, opportunities, and/or

23. directives that triggered the project. In the process, they frequently uncover new problems and opportunities. In this milestone you will perform Cause-Effect Analysis on the Equipment Check-Out System (ECS) and document your findings using the Problems, Opportunities, Objectives, and Constraints Matrix. The PIECES framework, originally developed by James Wetherbe and then adapted by the authors, can serve as a useful tool to classify the various problems, opportunities, and directives identified in Milestone 1. Objectives After completing this milestone, you should be able to: Perform a Cause-Effect Analysis to be able to thoroughly understand a system’s  problems, opportunities, and/or directives that triggered the project. Use and understand the PIECES framework for classifying problems, opportunities, and  directives. Complete the Problems, Opportunities, Objectives, and Constraints Matrix.  Complete the List of Business Activities based on Requirement analysis.  Devry CIS 321 Week 3 Assignment Latest MILESTONE 3 – PROCESS MODELING- Part I _______________________________________________________________________________ _______________________ Synopsis The requirements analysis phase answers the question, “What does the user need and want from a new system?” The requirements analysis phase is critical to the success of any new information system! In this milestone we need to identify what information systems requirements need to be defined from the system users’ perspectives. The Data flow diagram (DFD) has gained popularity as a technique for expressing system requirements for two reasons: It facilitates development, which often leads to building systems that better  satisfy user needs

24. Data flow diagrams and narratives are easy for users to understand.  In this milestone you will first uncover external agents, processes and data flows that define the requirements for the proposed system and document that information. You will use that to build the Context Data Flow Diagrams. Objectives After completing this milestone, you should be able to: Understand and perform the techniques for requirements discovery.  Determine external agents (external entities) and their relationship with the  System, identify data flows. Construct the Context DFD using VISIO.  Prerequisites Before starting this milestone, the following topics should be covered: The problem analysis phase — Chapters 3 and 5  PIECES framework — Chapters 3 and 5  Problem analysis techniques — Chapter 6  Process modeling techniques — Chapter 9  Assignment Now that we have studied the current system and analyzed some of its problems and opportunities, plus gained approval to proceed, we can now start to identify the business requirements for the system and model them. In this assignment we will use our results of the previous Milestone and transcripts of an interview with the Equipment Depot staff. The results of this activity will identify the system requirements for the proposed system. Exhibit 3.1 is a copy of the transcript of the interview. Refer to the transcript, sample forms, and results from Milestones 1 and 2 for the information necessary to complete the activities. Activities 1. Identify External entities and relationship with system 2. Identify data flows 3. Prepare Context level Data FlowDiagram

25. Deliverable format and software to be used are according to your instructor’s specifications. Deliverables should be neatly packaged in a binder, separated with a tab divider labeled “Milestone 3”. References Transcripts of Interview – Exhibit 3.1 (see below)  Deliverables: Devry CIS 321 Week 4 Assignment Latest Milestone 4 – Data Modeling-Part I-Logical ERD MILESTONE 4 – DATA MADELING – Part I (Logical ERD) ________________________________________________________________________ The requirements analysis phase answers the question, “What does the user need and want from a new system?” The requirements analysis phase is critical to the success of any new information system! In this milestone we need to identify what information systems requirements need to be defined from the system users’ perspectives and draw graphical, logical models to document the data requirements for a new and improved system. Data modeling is a technique for organizing and documenting a system’s data. Data modeling is sometimes called database modeling because a data model is usually implemented as a database. Data is viewed as a resource to be shared by as many processes as possible. As a result, data must be organized in a way that is flexible and adaptable to unanticipated business requirements – and that is the purpose of data modeling. In this milestone, you will first discover those entities in the system that are or might be described by data. Then you will define each entity you identify in respect to the business in an Entity Definition Matrix. Then you will do the data model tutorial in doc sharing that will prepare you for doing the logical entity relational diagram (ERD). Objectives After completing this milestone, you should be able to: • Understand and perform the techniques for entity discovery.

26. • Define each entity with respect to the business and complete an entity definition matrix. • Perform the necessary data modeling techniques to organize and document the data requirements for the proposed system. • Construct the Context data model (Logical ERD). Prerequisites Before starting this milestone, the following topics should be covered: • Data modeling — Chapters 8 and 14. • Milestone 1-3 Solutions (provided by your instructor) Assignment Now that we have studied the current system and analyzed some of its problems and opportunities, plus gained approval to proceed, we can now start to identify the business data requirements and graphically model them. In this assignment, we will use our results of the previous milestones, samples of forms we have collected, and a copy of a transcript of an interview with Dan Stantz’s staff. The results of this activity will identify the business data requirements for the proposed system. Activities 1. Complete an Entity Definition Matrix. Analyze each of the forms referenced by the user interview and make assumptions where necessary. (Note: While it is appropriate to make assumptions, you should document those assumptions and include them in your submission to your instructor.) If you create the matrix in Excel, paste it into a Word document prior to submission. 2. Complete the Visio tutorial which walks you through how to create an Entity Relationship Diagram (ERD), located in Doc Sharing. When you have completed the tutorial, paste the diagram you have created to the end of the Word document that already holds your Entity Definition Matrix. 3. Prepare a Context Data Model.

27. Deliverable format and software to be used are according to your instructor’s specifications. Deliverables should be neatly packaged in a binder, separated with a tab divider labeled “Milestone 4-Part I”. References • Milestone 1-3 Solutions – provided by your instructor • Case Study Introduction • Transcripts of Interviews with Equipment Depot staff o Exhibit 4.1 • Exhibit 4.2-4.4 (see below) Deliverables: Entity Definition Matrix: Due: __/__/__ Time:_______ Context Data Model: Due: __/__/__ Time:_______ ADVANCED OPTION For the advanced option, assume that the proposed system must also handle the tracking accounts receivable and payments on customer statements. Your instructor will specify additional system requirements for this part of the system. Modify your initial Entity Definition Matrix to be able to handle this system requirement. Entity Definition Matrix: Due: __/__/__ Time:_______ Milestone’s Point Value: _______ Exhibit 4.1 The following is a copy of the transcript of an interview between you and Oscar Barrett. The goal of this interview was to obtain sample forms used for processing check-ins and check-outs and to be able to ask questions about them in order to discover data entities of the business system. Scene: You have arranged to drop by the Equipment Depot to pick up samples of forms used to process check-ins and check-outs.Oscar Barrett was willing to collect them and answer any questions that you might have. Oscar: Hi. I assume you are here to pick up the forms. You: Yes. Is this a good time?

28. irtually impossible to track. A particular wrench does not have a serial number on it! But since it is relatively inexpensive and virtually impossible to track, we don’t even attempt to do so. We simply want to keep track of the fact that the employee checked out a wrench. We don’t care which wrench. We only care that we get the wrench back. You: OK. Two kinds of equipment and slightly different information kept for each. But everything has an Equip ID. Oscar: Right. For tracked equipment we only have one piece with that Equip ID. With untracked we could have several. You: Do you need the system to track the quantity you have of each kind of equipment? Oscar: Good question. We haven’t until now. If someone calls us up see if we have something in stock we just put him or her on hold and go look. But it would be nice if the computer had a total and could subtract the outstanding loans. Sometimes I’ve suspected people of sneaking in here and raiding our inventory. And maybe your system could even allow people in another plant to check our inventory online before they trudge over here. You: We’re still working out the system requirements. I’ll write that down. Let’s finish the check-out form. I assume “qty in” and “qty out” for large equipment is always one? Oscar: That’s correct . . . in fact sometimes we don’t even enter a quantity, since it can’t possibly be more than one. You: Is “damage” recorded for check-ins or for check-outs or for both? Oscar: Just for check-ins. If something is damaged enough to not work properly we fix it before it goes out again. Minor damage we just ignore. We don’t care what it looks like as long as it works.

29. You: OK. Now this employee registration…(see Exhibit 4.4) looks pretty understandable. I see you track supervisor. Oscar: Right. If someone isn’t returning something we go to the supervisor. Devry CIS 321 Week 5 Assignment Latest MILESTONE 4 – DATA MADELING – Part II (Physical ERD) ________________________________________________________________________ Data Modeling and Analysis (continued) This week you are building on the previous week’s activity. Please make sure to review the Milestone 4, Part I Solution (located in Doc Sharing) before continuing with the Milestone 4, Part II activity. The synopsis below is the same as the synopsis for Week 4. It is shown below for your convenience. The requirements analysis phase answers the question, “What does the user need and want from a new system?” The requirements analysis phase is critical to the success of any new information system! In this milestone we need to identify what information systems requirements need to be defined from the system users’ perspectives and draw graphical, logical models to document the data requirements for a new and improved system. Data modeling is a technique for organizing and documenting a system’s data. Data modeling is sometimes called database modeling because a data model is usually implemented as a database. Data is viewed as a resource to be shared by as many processes as possible. As a result, data must be organized in a way that is flexible and adaptable to unanticipated business requirements – and that is the purpose of data modeling. In this milestone, you will first discover those entities in the system that are or might be described by data. Then you will define each entity you identify in respect to the business in an Entity Definition Matrix. Then you will do the data model tutorial in doc sharing that will prepare you for doing the Fully-Attributed data model (Physical ERD) for ECS. Objectives After completing this milestone, you should be able to:

30. Understand and perform the techniques for entity discovery.  Define each entity with respect to the business and complete an entity definition  matrix. Perform the necessary data modeling techniques to organize and document the  data requirements for the proposed system. Construct the Fully Attributed data model.  Prerequisites Before starting this milestone, the following topics should be covered: Data modeling – Chapters 8 and 14.  Milestone 1-3 Solution – provided by your instructor  Milestone 4, Part I Solution – provided by your instructor  Assignment Now that we have studied the current system and analyzed some of its problems and opportunities, plus gained approval to proceed, we can now start to identify the business data requirements and graphically model them. In this assignment, we will use our results of the previous milestones, samples of forms we have collected, and a copy of a transcript of an interview with Dan Stantz’s staff. The results of this activity will identify the business data requirements for the proposed system. Activities 1. Create a Physical ERD (Fully-Attributed data model) for the ECS case. Deliverable format and software to be used are according to your instructor’s specifications. Deliverables should be neatly packaged in a binder, separated with a tab divider labeled “Milestone 4-Part II”. References Transcripts of Interviews with Equipment Depot staff o Exhibit 4.1 (see Milestone 4, Part I  Description) Exhibit 4.5 (see below)  Deliverables:

31. Fully-Attributed ERD: Due: __/__/__ Devry CIS 321 Week 6 Assignment Latest Milestone 5 – Process Modeling – Part II – Exploded DFD MILESTONE 5 – PROCESS MODELING – Part II (Exploded DFD) _______________________________________________________ Part 1 Synopsis 1.Level 0 Data flow Diagram T he requirements analysis phase answers the question, ‘What does the user need and want from a new system?’ The requirements analysis phase is critical to the success of any new information system! In this milestone we need to identify what information systems requirements need to be defined from the system users’ perspectives. The Data Flow Diagram (DFD) is a graphical representation of system which shows systems structure and components. The DFD shows how the data transforms in the system, what the source of the input is and what is the destination. Also, the DFD presents data structure and how it’s stored. In this milestone you will explode the Context level DFD to Level 0 DFD to show sub-systems (processes). The Level 0 DFD shows internal data stores and how data flows through the processes. 2. 2.Child diagram definition C hild level diagrams show details and are built till needed level of details is reached. First, we show the information system as a single process on the Context diagram. Then, we decompose and

32. show more details until all processes are functional primitives. Not all processes are exploded to the same number of levels- it’s not required to explode all processes to the same level. The main target is to reach the functional primitive which will be translated into units of program code. Objectives After completing this milestone, you should be able to: 1. Create a Level 0 (System) Data Flow Diagram 2. Create a Child Data Flow Diagram Prerequisites Before starting this milestone, the following topics should be covered: Process Modeling – Chapter 9  Assignment As a systems analyst or knowledgeable end-user, you must learn how to draw data flow diagrams to model business process requirements. The preliminary investigation and problem analysis phases of the methodology have been completed and you understand the current system’s strengths, weaknesses, limitations, problems, opportunities, and constraints. You have already built the Context models (Milestone 3) to document business requirements for the new system. You now need to build the Level 0 (System) DFD and corresponding process models. Activities 1. Develop Level 0 DFD.Make assumptions where necessary. 2. Draw one Child Diagram using the Level 0 diagram. 3. Continue decomposition of one process up to primitive processes (Level 2, Level 3, etc.) Deliverable format and software to be used are according to your instructor’s specifications. Deliverables should be neatly packaged in a binder, separated with a tab divider labeled “Milestone 5-Part II”. References Context Data Flow Diagram Narrative – Exhibit 5.1  Deliverables: Level 0 Data flow Diagram

33. Due:__/__/__ Time:______ Child level diagrams: Due: __/__/__ Time:_______ ADVANCED OPTIONS Time:_________ PART 2 SYNOPSIS EACH PROCESS FROM PRIMITIVE DFD MAY BE DEVELOPED AS THE INDIVIDUAL MODULE. The software design technique which is based on the composing software from separate, interchangeable components is known as the module. Modular design is a way to organize the complex system as a set of distinct components. Components may be developed, tested independently and then plugged together. Modular design is supported by three types of logic: – Sequential; – Decision making or control; – Iteration or repetition. Sequential– execution of steps one after another. Decision making– execution of step depends on results of condition or set of conditions. Decision making is also called the selection or control. Iteration– execution of steps is repeated until the specific condition changes. Iteration is also called as repetition or looping. In this milestone you will write the Structured English for primitive process. OBJECTIVES After completing this milestone, you should be able to: 1. Write the Structured English for primitive process.

34. PREREQUISITES Devry CIS 321 Week 7 Assignment Latest iLab Milestone 5 – Process Modeling – Part III – User Interface MILESTONE 5 – PROCESS MODELING – Part III (User Interface) SYNOPSIS Management and users make important decisions based on system outputs. Outputs present information to system users. Outputs, the most visible component of a working information system, are the justification for the system. These outputs are produced from data that is either retrieved from databases or, more often, input by users. Good input and output design can make the difference in whether or not an information system is used effectively. User interface design provides a roadmap or dialog that integrates the inputs and outputs. In this milestone you will design outputs, inputs, and user interface for the Customer Response System. OBJECTIVES After completing this milestone, you should be able to: • Design a GUI output screen and printed computer outputs. • Design a GUI input screens that use the proper screen-based controls. • Design a GUI screen that integrates the above outputs and inputs. PREREQUISITES Before starting this milestone the following topics should be covered: 1. Output design – Chapter 15 2. Input design – Chapter 16 3. User interface design – Chapter 17 ASSIGNMENT The goal of this project is to design outputs, inputs, and a user interface to track employee data.

35. ACTIVITIES 1. Design at least one of the following outputs for the Equipment Check-Out System: transaction (external/turnaround), detail report (internal), summary report (internal), and exception report (internal). Your instructor will indicate what specific outputs you are to design. 2. Design at least one of the following inputs for the Equipment Check-Out System: source document, client/server screens (e.g., Windows), and web screens. Your instructor will indicate what specific inputs you are to design. 3. Design a user interface that integrates the above outputs and inputs. [Note: this requirement is for the main system screen and all subsequent screens that may be used to arrive at the screens designed for Activity 1 and 2.] The above designs should represent prototypes (thus, include sample data in your designs). To develop the prototypes, use any available tool: Visio, CASE tool, personal DBMS (e.g., Access), or RAD tool (e.g., Visual Basic, MS Visual Studio). Your instructor may indicate what specific design tool you should use. Your instructor will specify deliverable format and software to be used. Deliverables should be neatly packaged in a binder, separated with a tab divider labeled “Milestone 5-Part III” and accompanied with a Milestone Evaluation Sheet. References: Previous narratives and supplied forms Optional Guidelines or additional technical requirements such as data dictionary. Templates See on-line learning center website for the textbook. Deliverables: Input Design Form: Due: __/__/__ Time:_______ Output Design Form: Due: __/__/__ Time:_______ User Interface Form: Due: __/__/__ Time:_______

36. Milestone’s Point Value: _________ Download File Now