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COIT11226 Systems Analysis

There are six information gathering techniques covered in this unit. Select two most useful relevant information gathering techniques for the above scenario that help you effectively investigate the new system requirements. You have to:

  • Describe each of the two information gathering techniques in detail. Include tasks that would be performed using the technique for the online ordering system project.
  • Explain the advantages and disadvantages of each technique in the context of the online ordering system project. The advantages/disadvantages are relative to all 5 other techniques (not just the selected techniques).

What to include in your report for this task?

  1. Description of two techniques
  2. Explanation of advantages/disadvantages of selected technique 1
  3. Explanation of advantages/disadvantages of selected technique 2

Draw a use case diagram for the system within the project. What to include in your report for this task?

  1. A screenshot or copy-and-paste of the diagram. You MUST also submit the original MS Visio file containing the diagram.
  2. Succinct explanations and supporting assumptions for your UCD.

Answer:

Information Gathering Techniques

Following are the techniques those could be utilized for the information gathering techniques:

Interview: Interviewing the stakeholders involved or associated with the system allows the system analyst to gather the information related to the needs and requirements of the stakeholders. This information could be utilized for proposing the system that can be helpful in assurin


g that the needs and requirements of the stakeholders are fulfilled. The process of interview includes meeting with the stakeholder and asking the questions related to their expectations from the system.

Questionnaire: It can be expressed as a tool for the survey that allows the system analyst to prepare a set of questions regarding the specification of the system through targeting the group of stakeholders. It consists of many questions those could be open ended, close ended, or optional regarding the point of view for a single question. The questionnaire for different stakeholder groups should consist of questions related to their background and interest. The answers could be used for finalizing the overall result in the form of the charts or pies that can present the visual representation of the stakeholders thought regarding the proposed system.

Advantages and Disadvantages

Advantages

Disadvantages

Interview

This is far better technique for identifying the needs and requirements of the end user

Time consuming

Deeper level of engagement with the end user

Bouncing ideas

Much easier to make the arrangement of the session to communicate with an individual rather than communicating with o group.

 

It allows to gain better ‘buy in’ rom the stakeholders

 

Offers better and effective support in the next stages of the project

 

Questionnaires

Faster

Consumes time in designing

Different stakeholders can be targeted

A good number of participant necessary

Saves time for further activities

One way conversation

Use Case Diagram

Figure 1: Use Case Diagram

(Source: Created by Author)

Explanations and Assumptions

There are three important use cases as expressed in the above figure including Register, Carpet selection and Payment those include other sub use case as an extension of the use case or options included in the use case. Log In use case is associated with the registration and thus, the user can only log in if he or she has registers in the system. Carpet selection use case include three sub cases for the selection of sizes of the carpet that has been further extended to selection of the

Class Diagram

Figure 2: Class Diagram

(Source: Created by Author)

Explanations and Assumptions

The above class diagram is a composition of the inheritance, aggregation and association with the enlisted entities. The above class diagram presents the visual representation of the database management system for the LPC for selling and purchasing carpets.

Activity diagram

Figure 3: Activity Diagram

(Source: Created by Author)

Explanation

The initial state of the system will allow the user to register in the system and create unique id to access the system. The user will be allowed to search for the carpet after registering and logging into the system. Thereafter, the user will be asked to select the size of the carpet and move to checkout point. This will be a loop allowing the customer to re-enter the loop and make another transaction if he or she wants to. Thereafter the payment mode will be selected and the customer will make the payment.

System Sequence Diagram

Figure 4: Sequence Diagram

(Source: Created by Author)

References

Azar, A.T. and Vaidyanathan, S. eds., 2015. Chaos modeling and control systems design (Vol. 581). Germany: Springer.

Chitchyan, R., Rashid, A., Sawyer, P., Garcia, A., Alarcon, M.P., Bakker, J., Tekinerdogan, B., Clarke, S. and Jackson, A., 2015. Survey of aspect-oriented analysis and design approaches.

Dennis, A., Wixom, B.H. and Tegarden, D., 2015. Systems analysis and design: An object-oriented approach with UML. John wiley & sons.

Kan, T., Nguyen, T.D., White, J.C., Malhan, R.K. and Mi, C.C., 2017. A new integration method for an electric vehicle wireless charging system using LCC compensation topology: analysis and design. IEEE Transactions on Power Electronics, 32(2), pp.1638-1650.

McCuen, R.H., 2016. Hydrologic analysis and design (Vol. 3). Prentice Hall.

Montgomery, D.C., 2017. Design and analysis of experiments. John wiley & sons.

Munzner, T., 2014. Visualization analysis and design. CRC press.


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