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Managerial economics | Economics homework help

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 Managerial Economics

                                       Group Assignment 3

Part A: How does government regulation affect the entry or exit of firms into the competitive market?

There has been much discussion that government regulations hinder the entry of firms in to the competitive market. Discuss the pros and cons of government regulation. Support your discussion with appropriate references. No Wikipedia

Part B: What makes a competitive market?

In the section entitled Low Barriers to Entry, this chapter lists six characteristics for a competitive market that can help an economy achieve the virtues of competition. The six characteristics are:

a) Many firms

b) Identical products

c) MC = p

d) Low barriers to entry

e) Zero economic profit

f) Perfect information

However, these these characteristics don’t always occur. Pick a market for a good or service with which you are familiar (for example, college textbooks or car insurance—but don’t use these examples). Be sure you select a good or service produced by firms operating to make a profit. Don’t pick something produced by the government or a non-profit firm.

1) In the market you selected, which characteristics are present?

2) Which characteristics are absent?

3)Pick one of the absent characteristics. Provide evidence to support your

judgment that it is missing.

4) For one of the absent characteristics you identified in (2), describe a government policy to remedy the shortcoming, so that more of the virtues of competition could be achieved. Explain why production would be more efficient and why there would be a more optimal mix of output.

Support your discussion with appropriate references. No Wikipedia

Part C: How does tax policy affect business decisions?

This chapter discusses the effects that tax policy has on business decisions. How do these taxes affect business decisions regarding investment and/or production

decisions?

a)a) Property taxes

b) Payroll taxes

c) Profit taxes

Support your discussion with appropriate references. No Wikipedia

Part D: Is Antitrust Lynchpin or folly?

Economists generally agree that US antitrust policy is complex, changing over time,divided among several US federal government agencies, and subject to frequent court reversals. The underlying question remains whether the US needs more or less regulation of market structures.

Key questions are:

• Are US markets becoming less competitive because of mergers and

acquisitions?

• Are US markets becoming more competitive because of new technology?

• Are US markets becoming more or less competitive because of globalization?

• Is enough information available for wise antitrust enforcement?

Support your discussion with appropriate references. No Wikipedia

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July 1, 2023
    

The assignment revolves around the Case Study, which may be found as a separate PDF document in the Resources section of the subject Interact site.

Objective

To apply and consolidate skills acquired in the requirement and analysis disciplines through analysis of a simple case study, and to express the results through the relevant UML diagrams.

Tasks

Part A - Use Cases (25 marks)

  1. Perform a requirements analysis for the Case Study. Express the results using the following artefacts:
    1. A use case diagram for the functional requirements of the entire system, accompanied by:
    2. Short use case descriptions for all use cases.
  2. Select the most essential (critical core) use case in the system, and produce a full use case description for it .
  3. Produce an activity diagram that expresses the workflow for that use case.

Part B - System-wide/Non-functional Requirements (15 marks)

  1. Produce a system-wide (non-functional) requirement document that documents the architectural requirements the system must address.

Part C - Use Case Realization (30 marks)

  1. Develop a domain model for the Case Study. Express your model with a class diagram, showing any inheritance and compositional relationships.
  2. Develop a use case realization showing the sequence of messages involved for the use case selected for the full description in Part A. Express this use case realization in a communication diagrams. Use the GRASP concept of a Controller class to coordinate the use case.
  3. Translate the communication diagram produced for Task 6 into an equivalent sequence diagram.

Part D - Analysis Classes(10 marks)

  1. Prepare a summary analysis class diagram showing the attributes and methods required by problem domain classes involved in the use case realized in Part C.

Part E - Object Interactions (10 marks)

  1. Prepare operation specifications for the two most complex methods contained in one of the nominated objects specified for the Case Study.

Part F - Object State (10 marks)

  1. Create a state diagram for the object chosen for Part E. Nominated objects will be listed in the Case Study.

Rationale

This assignment elicits performance of taught skills in the architecture and design areas relevant to the following learning objectives:

  • be able to analyse and validate system requirements;
  • be able to produce and validate analysis and design models for a system;
  • be able to demonstrate use of a CASE tool to document the models in a system.

Marking criteria

Use Cases

  • Is a correct concept of use cases demonstrated?
  • Are sensible use cases identified?
  • Are all use cases identified?
  • Are any extraneous use cases included?
  • Is correct UML syntax used (system box, actors,use cases, extends/includes)?
  • Are all use cases described briefly?
  • Do use cases have sensible names (identifies intent with verb)?
  • Are the short use case descriptions sensible/correct?
  • Are the most critical and important use cases correctly identified?
  • Are normal and alternate flows identified in the full use case description?
  • Are pre-conditions and post-conditions identified in the full use case description?
  • Is the full use case description consistent with the case study?
  • Is the activity diagram consistent with full use case descriptions?
  • Does the activity diagram use correct UML syntax?

System-wide/Non-functional Requirements

  • Are all system-wide/non-functional requirements identified?
  • Are sensible inferences from the system-wide requirements discussed?
  • Are business rules identified and described?
  • Are all domain objects identified?
  • Are any extraneous objects included?
  • Are inheritance relationships correctly identified?
  • Are composition/aggregation relationships correctly identified?

Use Case Realizations

  • Is there a coherent sequence of messages?
  • Are the messages consistent with Domain model?
  • Does the message sequence support the use case as described?
  • Does the communication diagram use correct UML syntax?
  • Is the sequence diagram consistent with the communication diagram?
  • Is there a coherent sequence of messages (no miracles)?
  • Is the sequence diagram consistent with the domain model?
  • Does the sequence diagram support the use case as described?
  • Does the sequence diagram use correct UML syntax?

Summary Analysis Class Diagram

  • Is the summary analysis class diagram consistent with the use case realization?
  • Is the summary analysis class diagram consistent with the domain model?
  • Are all methods required by use case realizations identified?
  • Are all attributes necessary to support methods identified?
  • Does the summary analysis class diagram use correct UML syntax?

Operation Specification

  • Is the operation specification consistent with the use case realization?
  • Is the operation specification consistent with the domain model?
  • Are pre-conditions identified and specified?
  • Are post-conditions identified and specified?
  • Are parameter types and rangesspecified?
  • Is business logic specified?

State Diagram

  • Is a correct concept of states and transitions displayed?
  • Is the state diagram consistent with the use case realization?
  • Are sensible additional transitions identified?
default image
July 1, 2023
    

The assignment revolves around the Case Study, which may be found as a separate PDF document in the Resources section of the subject Interact site.

Objective

To apply and consolidate skills acquired in the requirement and analysis disciplines through analysis of a simple case study, and to express the results through the relevant UML diagrams.

Tasks

Part A - Use Cases (25 marks)

  1. Perform a requirements analysis for the Case Study. Express the results using the following artefacts:
    1. A use case diagram for the functional requirements of the entire system, accompanied by:
    2. Short use case descriptions for all use cases.
  2. Select the most essential (critical core) use case in the system, and produce a full use case description for it .
  3. Produce an activity diagram that expresses the workflow for that use case.

Part B - System-wide/Non-functional Requirements (15 marks)

  1. Produce a system-wide (non-functional) requirement document that documents the architectural requirements the system must address.

Part C - Use Case Realization (30 marks)

  1. Develop a domain model for the Case Study. Express your model with a class diagram, showing any inheritance and compositional relationships.
  2. Develop a use case realization showing the sequence of messages involved for the use case selected for the full description in Part A. Express this use case realization in a communication diagrams. Use the GRASP concept of a Controller class to coordinate the use case.
  3. Translate the communication diagram produced for Task 6 into an equivalent sequence diagram.

Part D - Analysis Classes(10 marks)

  1. Prepare a summary analysis class diagram showing the attributes and methods required by problem domain classes involved in the use case realized in Part C.

Part E - Object Interactions (10 marks)

  1. Prepare operation specifications for the two most complex methods contained in one of the nominated objects specified for the Case Study.

Part F - Object State (10 marks)

  1. Create a state diagram for the object chosen for Part E. Nominated objects will be listed in the Case Study.

Rationale

This assignment elicits performance of taught skills in the architecture and design areas relevant to the following learning objectives:

  • be able to analyse and validate system requirements;
  • be able to produce and validate analysis and design models for a system;
  • be able to demonstrate use of a CASE tool to document the models in a system.

Marking criteria

Use Cases

  • Is a correct concept of use cases demonstrated?
  • Are sensible use cases identified?
  • Are all use cases identified?
  • Are any extraneous use cases included?
  • Is correct UML syntax used (system box, actors,use cases, extends/includes)?
  • Are all use cases described briefly?
  • Do use cases have sensible names (identifies intent with verb)?
  • Are the short use case descriptions sensible/correct?
  • Are the most critical and important use cases correctly identified?
  • Are normal and alternate flows identified in the full use case description?
  • Are pre-conditions and post-conditions identified in the full use case description?
  • Is the full use case description consistent with the case study?
  • Is the activity diagram consistent with full use case descriptions?
  • Does the activity diagram use correct UML syntax?

System-wide/Non-functional Requirements

  • Are all system-wide/non-functional requirements identified?
  • Are sensible inferences from the system-wide requirements discussed?
  • Are business rules identified and described?
  • Are all domain objects identified?
  • Are any extraneous objects included?
  • Are inheritance relationships correctly identified?
  • Are composition/aggregation relationships correctly identified?

Use Case Realizations

  • Is there a coherent sequence of messages?
  • Are the messages consistent with Domain model?
  • Does the message sequence support the use case as described?
  • Does the communication diagram use correct UML syntax?
  • Is the sequence diagram consistent with the communication diagram?
  • Is there a coherent sequence of messages (no miracles)?
  • Is the sequence diagram consistent with the domain model?
  • Does the sequence diagram support the use case as described?
  • Does the sequence diagram use correct UML syntax?

Summary Analysis Class Diagram

  • Is the summary analysis class diagram consistent with the use case realization?
  • Is the summary analysis class diagram consistent with the domain model?
  • Are all methods required by use case realizations identified?
  • Are all attributes necessary to support methods identified?
  • Does the summary analysis class diagram use correct UML syntax?

Operation Specification

  • Is the operation specification consistent with the use case realization?
  • Is the operation specification consistent with the domain model?
  • Are pre-conditions identified and specified?
  • Are post-conditions identified and specified?
  • Are parameter types and rangesspecified?
  • Is business logic specified?

State Diagram

  • Is a correct concept of states and transitions displayed?
  • Is the state diagram consistent with the use case realization?
  • Are sensible additional transitions identified?
default image
July 1, 2023
    

The assignment revolves around the Case Study, which may be found as a separate PDF document in the Resources section of the subject Interact site.

Objective

To apply and consolidate skills acquired in the requirement and analysis disciplines through analysis of a simple case study, and to express the results through the relevant UML diagrams.

Tasks

Part A - Use Cases (25 marks)

  1. Perform a requirements analysis for the Case Study. Express the results using the following artefacts:
    1. A use case diagram for the functional requirements of the entire system, accompanied by:
    2. Short use case descriptions for all use cases.
  2. Select the most essential (critical core) use case in the system, and produce a full use case description for it .
  3. Produce an activity diagram that expresses the workflow for that use case.

Part B - System-wide/Non-functional Requirements (15 marks)

  1. Produce a system-wide (non-functional) requirement document that documents the architectural requirements the system must address.

Part C - Use Case Realization (30 marks)

  1. Develop a domain model for the Case Study. Express your model with a class diagram, showing any inheritance and compositional relationships.
  2. Develop a use case realization showing the sequence of messages involved for the use case selected for the full description in Part A. Express this use case realization in a communication diagrams. Use the GRASP concept of a Controller class to coordinate the use case.
  3. Translate the communication diagram produced for Task 6 into an equivalent sequence diagram.

Part D - Analysis Classes(10 marks)

  1. Prepare a summary analysis class diagram showing the attributes and methods required by problem domain classes involved in the use case realized in Part C.

Part E - Object Interactions (10 marks)

  1. Prepare operation specifications for the two most complex methods contained in one of the nominated objects specified for the Case Study.

Part F - Object State (10 marks)

  1. Create a state diagram for the object chosen for Part E. Nominated objects will be listed in the Case Study.

Rationale

This assignment elicits performance of taught skills in the architecture and design areas relevant to the following learning objectives:

  • be able to analyse and validate system requirements;
  • be able to produce and validate analysis and design models for a system;
  • be able to demonstrate use of a CASE tool to document the models in a system.

Marking criteria

Use Cases

  • Is a correct concept of use cases demonstrated?
  • Are sensible use cases identified?
  • Are all use cases identified?
  • Are any extraneous use cases included?
  • Is correct UML syntax used (system box, actors,use cases, extends/includes)?
  • Are all use cases described briefly?
  • Do use cases have sensible names (identifies intent with verb)?
  • Are the short use case descriptions sensible/correct?
  • Are the most critical and important use cases correctly identified?
  • Are normal and alternate flows identified in the full use case description?
  • Are pre-conditions and post-conditions identified in the full use case description?
  • Is the full use case description consistent with the case study?
  • Is the activity diagram consistent with full use case descriptions?
  • Does the activity diagram use correct UML syntax?

System-wide/Non-functional Requirements

  • Are all system-wide/non-functional requirements identified?
  • Are sensible inferences from the system-wide requirements discussed?
  • Are business rules identified and described?
  • Are all domain objects identified?
  • Are any extraneous objects included?
  • Are inheritance relationships correctly identified?
  • Are composition/aggregation relationships correctly identified?

Use Case Realizations

  • Is there a coherent sequence of messages?
  • Are the messages consistent with Domain model?
  • Does the message sequence support the use case as described?
  • Does the communication diagram use correct UML syntax?
  • Is the sequence diagram consistent with the communication diagram?
  • Is there a coherent sequence of messages (no miracles)?
  • Is the sequence diagram consistent with the domain model?
  • Does the sequence diagram support the use case as described?
  • Does the sequence diagram use correct UML syntax?

Summary Analysis Class Diagram

  • Is the summary analysis class diagram consistent with the use case realization?
  • Is the summary analysis class diagram consistent with the domain model?
  • Are all methods required by use case realizations identified?
  • Are all attributes necessary to support methods identified?
  • Does the summary analysis class diagram use correct UML syntax?

Operation Specification

  • Is the operation specification consistent with the use case realization?
  • Is the operation specification consistent with the domain model?
  • Are pre-conditions identified and specified?
  • Are post-conditions identified and specified?
  • Are parameter types and rangesspecified?
  • Is business logic specified?

State Diagram

  • Is a correct concept of states and transitions displayed?
  • Is the state diagram consistent with the use case realization?
  • Are sensible additional transitions identified?
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