GMU Why You Think that Requirements Engineering Has Proven Difficult in Practice Ques

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Programming

George Mason University

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Instructions

Several of the questions use the scenario below. Please read carefully, and perhaps store or print separately where you can read it when answering these questions.

"You are on a team to develop an on-line system for the Marymount University graduation petition. The student will fill out an application which will be available from the Registrar’s Web page. The students use their username and password to log into the application and the system validates that the user ID is a current student and identify their major and any specialty and minor. The students enter further information when they estimate when they will be graduating. The Registrar’s Office records the information in a separate Excel file that includes which students are thought to be walking in the spring ceremony and passes on the information to the appropriate school Dean. The Dean sends it to the student’s advisor who looks at the degree plan and documents which classes are needed before graduation and send this information back to the Dean. The Dean notifies the students of their requirements and notifies the Registration Office of whether it is likely that the student will graduate at the time they indicated. The Registrar’s updates their Excel spreadsheet accordingly."


1- Give three reasons why you think that requirements engineering has proven difficult in practice


2- In your own words, describe the four phases of the requirements engineering process with one sentence describing each phase


3- In a use-case, the "actor" is an important concept. Who are the actors in the scenario above?


4- For a use case diagram, what information is recorded on the right side of the diagram. Give an example from the scenario above.


5- In what type of SDLCs would you expect to make use of the use case methodology and why?


6- Write a user story in the required format for the student applying for the graduation petition in the scenario above


7- In what type of SDLCs would you expect to make use of the user story methodology and why?


8- Explain the role of the "epic" user story and how it differs from the usual user story.


9- Write a user story for the Dean's office in the distribution of validation requests to advisors


10- Write two conditions of acceptance for either the student entering their graduation petition (question 6) or the Dean's office distributing the request (Question 9)


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Explanation & Answer

Okay, sorry we had very less time Bro.

1. Give three reasons why you think that requirements engineering has proven difficult
in practice
3 reasons why requirement engineering are difficult in practice:
a. As the system changes, change in the requirement is constant
b. Requirement conflict where different stakeholder have different understanding and
need of the system, so conflict is constant at some point in the engineering process
c. Process and product variability

2. In your own words, describe the four phases of the requirements engineering process
with one sentence describing each phase
Requirement engineering consists of four major phases/activities which are as:
a. Requirement elicitation: The activity includes using several ways to get an
understanding of the project requirement and domain
b. Requirement specification: At this phase, all the functional and non-functional
requirements/constraints are modelled using diagrams like ER, DFD, FDD, etc.
c. Requirement verification and validation: Once after gathering all the requirement
details, this phase includes proper verification and validation of the requirement. For
example, it will check that end product will customer’s requirement
d. Requirement Management: This phase includes analysing, tracking, prioritizing, and
documenting the requirement. It also includes ensuring proper communication to all
the stakeholders of the requirement

3. In a use-case, the "actor" is an important concept. Who are the actors in the scenario
above?
A use case is set of working/expected functionalities of a system. Actors can be a person, a
private entity or a thing of the sys...


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